Very Hot Topic (More than 25 Replies) Spanish repertoire (Read 374867 times)
proustiskeen
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Re: Spanish repertoire
Reply #540 - 09/02/17 at 18:53:13
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TN wrote on 08/22/17 at 19:45:03:
I only flicked through McDonald's book in a bookstall, but I can share the same experience of having a much better understanding from his explanations. 

Btw, is there an index of the variations analysed in this repertoire thread? I'm thinking of creating one in about a month if the members agree it will be useful. For instance - I am tempted to share some analysis on MVL's Marshall Gambit approach and also the Bxc5 idea in the Breyer but don't exactly want to spend half an hour to check whether someone already covered the same ground.


I think it would be very useful.
  
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Re: Spanish repertoire
Reply #539 - 09/02/17 at 17:19:06
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barnaby wrote on 09/02/17 at 16:23:19:


He merged with the infinite.


Yes, I see. I am sorry to see of his passing. Almost 2 years ago to the day.  Cry
  
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Re: Spanish repertoire
Reply #538 - 09/02/17 at 16:23:19
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trw wrote on 09/02/17 at 16:02:11:
TN wrote on 08/22/17 at 19:45:03:
I only flicked through McDonald's book in a bookstall, but I can share the same experience of having a much better understanding from his explanations. 

Btw, is there an index of the variations analysed in this repertoire thread? I'm thinking of creating one in about a month if the members agree it will be useful. For instance - I am tempted to share some analysis on MVL's Marshall Gambit approach and also the Bxc5 idea in the Breyer but don't exactly want to spend half an hour to check whether someone already covered the same ground.



I would enjoy it.

Stefan Buecker wrote on 08/29/17 at 08:02:53:

This repertoire thread has covered "lesser replies", with a number of good suggestions. The basic idea of Markovich (Mark Morss) was a += repertoire for White, and many have contributed to it. However, imo the thread has run its course. Tastes differ too much on how to treat 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6. One person's Marshall Attack is the other person's Exchange Variation, or Steenwijk or Central or ... whatever.


Whatever happened to Markovich?


He merged with the infinite.
  
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Re: Spanish repertoire
Reply #537 - 09/02/17 at 16:22:32
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trw wrote on 09/02/17 at 16:02:11:
Whatever happened to Markovich?

http://www.chesspub.com/cgi-bin/chess/YaBB.pl?num=1441470190/50
  
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Re: Spanish repertoire
Reply #536 - 09/02/17 at 16:02:11
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TN wrote on 08/22/17 at 19:45:03:
I only flicked through McDonald's book in a bookstall, but I can share the same experience of having a much better understanding from his explanations. 

Btw, is there an index of the variations analysed in this repertoire thread? I'm thinking of creating one in about a month if the members agree it will be useful. For instance - I am tempted to share some analysis on MVL's Marshall Gambit approach and also the Bxc5 idea in the Breyer but don't exactly want to spend half an hour to check whether someone already covered the same ground.



I would enjoy it.

Stefan Buecker wrote on 08/29/17 at 08:02:53:

This repertoire thread has covered "lesser replies", with a number of good suggestions. The basic idea of Markovich (Mark Morss) was a += repertoire for White, and many have contributed to it. However, imo the thread has run its course. Tastes differ too much on how to treat 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6. One person's Marshall Attack is the other person's Exchange Variation, or Steenwijk or Central or ... whatever.


Whatever happened to Markovich?
  
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Re: Spanish repertoire
Reply #535 - 08/29/17 at 22:44:11
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Hi.

TN wrote on 08/22/17 at 19:45:03:
Btw, is there an index of the variations analysed in this repertoire thread?

Reply #265 is the latest PGN summary of all analysis. An up to date summary is always welcome of course but it is a lot of work. 
I swiftly counted PGNs once (#463) but it gave mainly that there were quite few PGNs for a lot of lines.

TN wrote on 08/22/17 at 19:45:03:
I am tempted to share some analysis on MVL's Marshall Gambit approach and also the Bxc5 idea in the Breyer but don't exactly want to spend half an hour to check whether someone already covered the same ground.

Marshall summary in reply #525. Breyer not so much analysis yet.

Stefan Buecker wrote on 08/29/17 at 08:02:53:
This repertoire thread has covered "lesser replies", with a number of good suggestions. The basic idea of Markovich (Mark Morss) was a += repertoire for White, and many have contributed to it. However, imo the thread has run its course. Tastes differ too much on how to treat 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6. One person's Marshall Attack is the other person's Exchange Variation, or Steenwijk or Central or ... whatever.

Maybe going for analysis of a mainline is good at this point in the project. Might revitalise some interest.

Have a nice day.
  
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Re: Spanish repertoire
Reply #534 - 08/29/17 at 08:02:53
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TN wrote on 08/22/17 at 19:45:03:
Btw, is there an index of the variations analysed in this repertoire thread? I'm thinking of creating one in about a month if the members agree it will be useful. For instance - I am tempted to share some analysis on MVL's Marshall Gambit approach and also the Bxc5 idea in the Breyer but don't exactly want to spend half an hour to check whether someone already covered the same ground.

I'd much appreciate such an index. Personally I feel the theory of the Marshall Attack has become too vast, but occasionally I've looked at some lines. 

This repertoire thread has covered "lesser replies", with a number of good suggestions. The basic idea of Markovich (Mark Morss) was a += repertoire for White, and many have contributed to it. However, imo the thread has run its course. Tastes differ too much on how to treat 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6. One person's Marshall Attack is the other person's Exchange Variation, or Steenwijk or Central or ... whatever.
  
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Re: Spanish repertoire
Reply #533 - 08/22/17 at 19:45:03
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I only flicked through McDonald's book in a bookstall, but I can share the same experience of having a much better understanding from his explanations. 

Btw, is there an index of the variations analysed in this repertoire thread? I'm thinking of creating one in about a month if the members agree it will be useful. For instance - I am tempted to share some analysis on MVL's Marshall Gambit approach and also the Bxc5 idea in the Breyer but don't exactly want to spend half an hour to check whether someone already covered the same ground.
  

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Re: Spanish repertoire
Reply #532 - 08/22/17 at 12:10:48
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McDonald's The Ruy Lopez: Move by Move give gives two repertoures. One quick with d3 systems and one none d3 based.
I actually one read and used the d3 based. My undertstanding of Ruy Lopez positions incresed much by simply reading McDonald's intro chapter.
  
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Re: Spanish repertoire
Reply #531 - 08/22/17 at 05:54:22
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The repertoire itself is certainly still valid, you'd just have to do some updating using a database and an engine in some of the sharper lines.
  
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Re: Spanish repertoire
Reply #530 - 08/22/17 at 00:34:32
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I have the book Easy Guide to the Ruy Lopez by Emms. I think it's a nice little book and was wondering if it's still valid. And how does it compare to McDonald's The Ruy Lopez: Move by Move?
  
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Re: Spanish repertoire
Reply #529 - 02/18/17 at 12:34:25
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Hello.

TN wrote on 02/18/17 at 09:15:16:
Naturally the Berlin is the main challenge for the repertoire, but Vachier-Lagrave's recent Gibraltar games give food for thought in the Berlin endgame. There's also 5.Re1 as covered in Shirov's recent ChessBase DVD, and even the Spanish Four Knights has been scoring very well for White lately. I'm happy to discuss any of these directions if you have some new ideas for either colour.

Personally I am holding of analysing Spanish (pretty much all lines) until Negi publishes his 1.e4 e5 volume. Also I am not a Berliner Wink (so to speak)

Still. Vachier Lagrave Games Smiley




Good results. Looked good as well. No idea if the games were theoretical (a4-a5-a6 in the Gupta game for example. I mean. is that a thing?).

Have a nice day.
  
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Re: Spanish repertoire
Reply #528 - 02/18/17 at 09:15:16
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Naturally the Berlin is the main challenge for the repertoire, but Vachier-Lagrave's recent Gibraltar games give food for thought in the Berlin endgame. There's also 5.Re1 as covered in Shirov's recent ChessBase DVD, and even the Spanish Four Knights has been scoring very well for White lately. I'm happy to discuss any of these directions if you have some new ideas for either colour.
  

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Re: Spanish repertoire
Reply #527 - 02/18/17 at 06:21:01
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Hey.

fjd wrote on 12/17/16 at 15:50:59:
Has this project been abandoned? Has anyone collected current progress in a PGN?

Probably the lack of replies is indicative of things.

Anyway. In practice I would say the following can be be seen: 
- The nature of this kind of project is that progress is made in spurts. 
- Reaching += with all or almost all black attempts covered is truly difficult and analysis intensive even against relatively non mainline black setups.
- Interest for lines comes and goes.

Have a nice day.
  
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Re: Spanish repertoire
Reply #526 - 12/17/16 at 15:50:59
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Has this project been abandoned? Has anyone collected current progress in a PGN?
  
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Re: Spanish repertoire
Reply #525 - 05/30/16 at 10:58:44
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Hello.

Here is a summary of Marshall analysis done so far in the thread (se attached PGN). Character limitations prevent posting the PGN in a PGN window.

Have a nice day.
  

Marshall_analysis_summary.pgn ( 12 KB | 488 Downloads )
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Re: Spanish repertoire
Reply #524 - 05/29/16 at 09:38:37
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Hello.

I am growing more and more pessimistic about white's chances for an advantage after (8...Bd7). Black seems solid pretty much all the time in this continuation. Here is some more lines compared to what I have already posted.



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Re: Spanish repertoire
Reply #523 - 05/23/16 at 10:36:58
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Hi.

Earlier today I put together analysis of (6...Bc5) and (6...d6) Jaenisch into the same PGN and added some analysis of reasonable replies against black sidelines between move 4 and 7. The result is a PGN to large to post in a PGN window due to character limitations. It is possible to attach the PGN-file though and this has been done below.

Anyone checking this PGN can see it as a Jaenisch repertoire suggestion. This repertoire suggestion is not carved in stone and can very much be modified and amended. If however, at some point a consensus is reached that the repertoire suggestion has reached a sufficient degree of maturity I move that it should be adopted as part of the so called Chesspub Spanish repertoire.

To start some discussion I can say that I'm not sure about what is best after:
(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.d3 fxe4 5.dxe4 Nf6 6.0-0 d6 7.Nc3 Be7 8.Qd3 Bd7)
As it is I'm not even convinced the main line given in the PGN is actually advantageous for white. Anyone have any nice ideas here?

Have a nice day.
  

Jaenisch_repertoire_suggestion.pgn ( 13 KB | 429 Downloads )
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Re: Spanish repertoire
Reply #522 - 05/18/16 at 18:54:30
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Hello.

The Marshall was discussed as recently as three years ago (see roughly post 391 to 445). Some nice analysis for sure. As for me I cannot say anything about how promising/unpromising the lines seem without checking deeper I'm afraid.

Nice game of Saric. About that line though, I'm fairly sure there is apart from (13...Bf5) also (13...Qh4).

Have a nice day.
  
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Re: Spanish repertoire
Reply #521 - 05/18/16 at 16:12:54
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The Jaenisch ideas look very nice, I'm keen to try them out in my next game! I'm not sure we covered an answer to the Marshall yet, but I think the following game would be a fairly practical recommendation where we can still challenge the opponent: 

  

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Re: Spanish repertoire
Reply #520 - 05/18/16 at 10:11:11
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Hello.

Here is some analysis on 4.d3 fxe4 with 6...d6. Black looks reasonably solid in most lines, perhaps especially after 8...Bd7 still there should be ways to some advantage.



File attached below.

Have a nice day.
  

Jaenisch_4_d3_fxe4_with_6___d6.pgn ( 4 KB | 397 Downloads )
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Re: Spanish repertoire
Reply #519 - 05/04/16 at 22:05:28
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10. Na4 looks good, White has some edge there.

Here is some analysis on 6... d6 (8. Qd3) I refined it a bit since the last time I posted it.

  
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Re: Spanish repertoire
Reply #518 - 05/01/16 at 14:42:52
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Hello.

Today I started looking at 4.d3 in the Jaenisch. As NegiR and perhaps others earlier in the thread have mentioned there seems to be two main lines:

(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.d3 fxe4 5.dxe4 Nf6 6.0-0 Bc5)
(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.d3 fxe4 5.dxe4 Nf6 6.0-0 d6)

I started by looking at the natural move 6...Bc5 and will present some analysis of this below. Hopefully there will be opportunities for me to create and post some analysis on 6...d6 soon.

As can be seen I reckon white has at least some advantage in all lines checked.

In terms of approaches 10.Na4!? in the posted analysis ml looks more appealing to me than 10.Nd3; because after 10.Nd3 black seems to be able to escape to not obviously bad positions if he shows some precision.

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Re: Spanish repertoire
Reply #517 - 04/12/16 at 09:48:45
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Hi.

Confused_by_Theory wrote on 04/01/16 at 11:28:20:
About the alternative line:
(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Qe2 d5 7.Nxf6+ gxf6 8.d4 Bg7 9.c4)
Maybe white can find his way to some kind of pleasant late middlegame. I reckon this continuation, starting with (9...Bg4) is critical:
(Line from post #514)
Confused_by_Theory wrote on 04/01/16 at 11:28:20:
Will likely post some analysis on this soon.

Here is some analysis on this:
To sum up. It seems like white gets little in the line. At best some very mild pressure.


About NR's 4.d3 Jaenisch lines. I have not taken a deeper look yet. An immediate observation though was that in the line with (6...d6) and (8...Bd7) maybe (14...Rd8) is more natural than (14...Qg6).

Have a nice day.
  

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Re: Spanish repertoire
Reply #516 - 04/01/16 at 19:54:16
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Hi.

Quote:
Anyway, 4. d3 is in my opinion the best move and lately, it has been played the most and it seems like there is a slight advantage there for White. 6... Bc5 is the main move but it looks like White is easily better there. After 6... d6, I have 8. Qd3 here and if anyone can refute that, then I will post analysis on 8. Be3. Of course, there are sidelines also like 4... Nf6, but those aren't really serious and if no one has a problem with the analysis on the main lines, then I can post the sidelines also.

Good initiative. Will take a look.

Have a nice evening.
  
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Re: Spanish repertoire
Reply #515 - 04/01/16 at 17:54:01
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Hi,

I wasn't able to find much of an edge for White after 4. Nc3 and 8... Bg7. But maybe there is something that I just can't see.

Anyway, 4. d3 is in my opinion the best move and lately, it has been played the most and it seems like there is a slight advantage there for White. 6... Bc5 is the main move but it looks like White is easily better there. After 6... d6, I have 8. Qd3 here and if anyone can refute that, then I will post analysis on 8. Be3. Of course, there are sidelines also like 4... Nf6, but those aren't really serious and if no one has a problem with the analysis on the main lines, then I can post the sidelines also.

  
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Re: Spanish repertoire
Reply #514 - 04/01/16 at 11:28:20
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Hi.

So I have pretty much given up on finding advantage for white after:
(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Qe2 d5 7.Nxf6+ gxf6 8.d4 Bg7 9.dxe5 0-0 10.e6 Ne5)
Without going 11.Bf4 I don't think he has anything and this move has concrete drawbacks (after 11...c6), as pointed out earlier.

About the alternative line:
(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Qe2 d5 7.Nxf6+ gxf6 8.d4 Bg7 9.c4)
Maybe white can find his way to some kind of pleasant late middlegame. I reckon this continuation, starting with (9...Bg4) is critical:


Will likely post some analysis on this soon.

Have a nice day.
  
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Re: Spanish repertoire
Reply #513 - 03/20/16 at 15:19:39
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Hello.

Well. 12.Nxe5 looks like it should not lead to advantage. Good find (of 11...c6) Mr. Bücker.


This is sort of problematic because it leaves the continuation mentioned in the post before last one

(11.Bf4 c6 12.Bd3 Nxd3+ 13.Qxd3)
or
not (11.Bf4)

As the ways forward in search of the advantage after 8.d4. I will probably check these a bit more, though I doubt there will be much of any advantage to be seen.

Edit: Actually have looked a bit at 8.d4 Bg7 9.c4!? as well which may be the next line to try and find advantage in.

Have a nice day.
  
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Re: Spanish repertoire
Reply #512 - 03/19/16 at 17:36:22
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Hi.

Stefan Buecker wrote on 03/19/16 at 12:34:49:
Black can play 10...Ne5 11.Bf4 c6 (instead of your 11...Qd6), e.g. 12.Bd3 Nxd3+ 13.Qxd3 c5 14.b4 b6. After regaining the pawn e6, Black continues Rfe8, Qd7, maybe Bf8 (if necessary). Looks = to me.

Yes. If black gets in c6 and Nxd3 virtually immediately then white should have no chance for advantage. Also there is a queen check preventing Ba4, which is nice.

12.Nxe5!? is the move I intended for white. The line may be playable for black though. Will check a bit deeper.

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Re: Spanish repertoire
Reply #511 - 03/19/16 at 12:34:49
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Confused_by_Theory wrote on 03/08/16 at 10:30:45:
Today I will finally get around to posting some analysis on the alternative to 8.0-0 in the 6.Qe2 Jaenisch, which is 8.d4. Notably a lot of the following analysis is focused on (8...Bg7 9.dxe5 0-0 10.e6 Qd6), this is because the alternatves at move 10 look to give white a fairly easy time imo.

Black can play 10...Ne5 11.Bf4 c6 (instead of your 11...Qd6), e.g. 12.Bd3 Nxd3+ 13.Qxd3 c5 14.b4 b6. After regaining the pawn e6, Black continues Rfe8, Qd7, maybe Bf8 (if necessary). Looks = to me.
  
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Re: Spanish repertoire
Reply #510 - 03/08/16 at 13:22:49
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Hi.

Paddy wrote on 03/08/16 at 12:25:08:
The pgn link doesn't work for me; it throws up the message: "The requested URL's length exceeds the capacity limit for this server."

However, there is a work-around: compose a reply to the posting by selecting quote; then copy the notation that appears in the window, from "[Event..." to "...for white.} *" and paste it into e.g. a new game window in Chessbase, et voilà!

Clever work-around. I will remember this.

Here is the file attached (will start attaching in the future).
  

Jaenisch_6_Qe2_with_8_d4.pgn ( 6 KB | 386 Downloads )
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Re: Spanish repertoire
Reply #509 - 03/08/16 at 12:25:08
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Confused_by_Theory wrote on 03/08/16 at 10:30:45:
Hi.

Today I will finally get around to posting some analysis on the alternative to 8.0-0 in the 6.Qe2 Jaenisch, which is 8.d4. Notably a lot of the following analysis is focused on (8...Bg7 9.dxe5 0-0 10.e6 Qd6), this is because the alternatves at move 10 look to give white a fairly easy time imo.

After 10...Qd6 I had trouble settling on a line. Eventually coming around to the thinking that simple is probaby good I opted for a straightforward line as ml in the analysis. It is not inconceivable that one of the alternative lines is as good or better though.



Have a nice day.


The pgn link doesn't work for me; it throws up the message: "The requested URL's length exceeds the capacity limit for this server."

However, there is a work-around: compose a reply to the posting by selecting quote; then copy the notation that appears in the window, from "[Event..." to "...for white.} *" and paste it into e.g. a new game window in Chessbase, et voilà!
  
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Re: Spanish repertoire
Reply #508 - 03/08/16 at 10:30:45
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Hi.

Today I will finally get around to posting some analysis on the alternative to 8.0-0 in the 6.Qe2 Jaenisch, which is 8.d4. Notably a lot of the following analysis is focused on (8...Bg7 9.dxe5 0-0 10.e6 Qd6), this is because the alternatves at move 10 look to give white a fairly easy time imo.

After 10...Qd6 I had trouble settling on a line. Eventually coming around to the thinking that simple is probaby good I opted for a straightforward line as ml in the analysis. It is not inconceivable that one of the alternative lines is as good or better though.



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Re: Spanish repertoire
Reply #507 - 01/27/16 at 17:41:14
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Confused_by_Theory wrote on 01/26/16 at 17:19:17:
What is it that gives white a little something after 21.Qe3? Both players look to have fairly solid positions.

Good knight vs bad bishop. I am the first to admit that objectively it isn't much, but humans don't defend flawlessly, and I guess in practice White would score nicely.
  
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Re: Spanish repertoire
Reply #506 - 01/26/16 at 17:19:17
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Hello.

Ametanoitos wrote on 01/25/16 at 15:35:25:
Btw, do we have something against 3...g6? It seems that Carlsen works very hard to give this little Spanish line a main line status since smyslov's times.

Nothing about 3...g6 in the summary-file. Some faint memory tells me I've read about the move somewhere in the thread though.


Continuing with the Jaenisch discussion:
Stefan Buecker wrote on 01/20/16 at 00:30:10:
Now I believe that 13.c4 f5 14.Ng2 is more precise, e.g. 14...0-0 15.Bxc6 bxc6 16.c5 Be7 17.Bh6 Re8 18.f3 Bg5 19.Bxg5 Qxg5 20.f4 Qh6 21.Qe3. White has a little something.

What is it that gives white a little something after 21.Qe3? Both players look to have fairly solid positions.



I'm going to look a bit at 8.d4 (instead of 8.0-0). This is what I was intending to check before I found 8.0-0 (which I now think seems just about OK for black - if he knows his lines very well). 

After 8.d4 black can play either 8...e4, which looks a bit weakening to me (after white's 9.Nh4).
or...
8...Bg7, when I will likely try and find some advantage after 9.dxe5 0-0 10.e6

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Re: Spanish repertoire
Reply #505 - 01/25/16 at 15:35:25
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The key phrase is "in the practical sense". I don't want to propose a line which is objectively equal but Black has to defend with care and accidents can happen at f7 (as has happened twice in games of my students). Also, unfortunately I don't even think that after ...Be6 white can hope to find a reasonable idea which will increase considerably his chances in the opening.

The exchange variation or the various d3 systems are more of a serious field of study (where ideas to put black under pressure could potentially be found). 

Btw, do we have something against 3...g6? It seems that Carlsen works very hard to give this little Spanish line a main line status since smyslov's times.
  
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Re: Spanish repertoire
Reply #504 - 01/25/16 at 08:02:04
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There is an excerpt of Nikolaos Ntirlis' (aka Ametanoitos) new work available online.
This is what he says about 9...Be6 (p. 243):

Quote:
If it wasn’t for this move I would have found it hard to recommend something against the Worrall that I find completely fine for Black, at least in the practical sense.

So if someone could refute 9...Be6, it would do much of the job.
  
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Re: Spanish repertoire
Reply #503 - 01/20/16 at 00:30:10
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MartinC wrote on 01/19/16 at 13:35:35:
Yes, that looks much more human Smiley
 
Btw, it is the same line which I originally suggested for White against my Bd6: 

Stefan Buecker wrote on 01/12/16 at 12:07:28:
White can decline the sacrifice, but after 11.d4 e4 12.Nh4 Bg6 13.f3 Qd7 Black is hardly worse.
 
Now I believe that 13.c4 f5 14.Ng2 is more precise, e.g. 14...0-0 15.Bxc6 bxc6 16.c5 Be7 17.Bh6 Re8 18.f3 Bg5 19.Bxg5 Qxg5 20.f4 Qh6 21.Qe3. White has a little something. 
 
  
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Re: Spanish repertoire
Reply #502 - 01/19/16 at 13:35:35
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Yes, that looks much more human Smiley Much more the sort of thing that might deter black too.
  
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Re: Spanish repertoire
Reply #501 - 01/19/16 at 12:16:08
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Hi.

MartinC wrote on 01/19/16 at 10:01:14:
Those lines do also strike me as pretty horribly risky/unpleasant to try and play over the board as white! Much easier for black.


My general practical considerations on the positions after 12.d4 would be the following:

After 12.d4 White has passive pieces for quite long. Black on the other has very active pieces and will probably have for a forseeable future.
On the other hand black has some problems creating truly dangerous pressure and in the long term white's extra piece means he should (minimum) never risk losing most of the more simplified positions that can arise.
There is a lot of perpetuals and repetitions (definitely more then in the pgn above) in these positions.

A simpler choice (mainly for the otb player) compared to 12.d4 would perhaps be 11.d4, briefly mentioned in the pgn. If I am correct then there are not that many good alternatives to the continuation given and the end position there looks fairly riskless.

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Re: Spanish repertoire
Reply #500 - 01/19/16 at 10:01:14
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Those lines do also strike me as pretty horribly risky/unpleasant to try and play over the board as white! Much easier for black.
  
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Re: Spanish repertoire
Reply #499 - 01/19/16 at 08:58:19
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Hello.

Confused_by_Theory wrote on 01/14/16 at 19:27:21:
Indeed. I am checking 17.Be3 c5 atm.

Must have completely blacked out here. Was in fact checking:
17.Be3 Rg3 18.Rae1 Rag8 19.Rg1 f5 20.Rxg3 Rxg3 21.Bd2 c5 (only now c5 as 17...c5 is ??). Sorry for any confusion.

Here is some analysis of the reasonable lines I could find after 8...Bg4. Sadly I haven't found much of an advantage for white anywhere.



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Re: Spanish repertoire
Reply #498 - 01/17/16 at 08:41:53
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I have my doubts whether a more patient defender - say, Kramnik - would have lost this game. Advancing with the h-pawn doesn't look good (moves 29 and 32). For most of its course, "drawish" seems a fair assessment. From old days in Biel, memories of Hübner - Ftacnik are dear, but is it more than just a daydream? I am not sure, was Fünfundfünfzig feiste Fehler actually a bestseller? Could the chess store clerks among the members tell us, please? Anyway, for an ambitious repertoire, 4.Nc3 appears to be a better choice.

 

  
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Re: Spanish repertoire
Reply #497 - 01/14/16 at 19:27:21
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Hi.

Stefan Buecker wrote on 01/14/16 at 15:22:49:
While I like 10...Bd6, the resulting position remains interesting. In your analysis, 17. Be3 (instead of the subtler 17.Bd2) could be tried in a game.

Indeed. I am checking 17.Be3 c5 atm.

Stefan Buecker wrote on 01/14/16 at 15:22:49:
Another option is 11. d4 e4 12. c4 Bf7 13. Nh4 h5 14. cxd5 Bxd5 15. f3 hxg4 16. fxe4 Be6 17. Qf2 or 17.Nf5. I haven't found a win, but Black has to defend carefully for a draw.

Ok. The more options the better. Will check this also.

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Re: Spanish repertoire
Reply #496 - 01/14/16 at 15:22:49
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Confused_by_Theory wrote on 01/14/16 at 06:16:44:
I checked the 17.Bd2 move from my last pgn (post #483). The idea of the move is to put the bishop on it's probable best square and when black drives it away with e3, to try and win the e3 pawn at some point. It seems though that against the likely best way forward for black (Stefan Bücker's line from reply #487), white does not seem to have much.

While I like 10...Bd6, the resulting position remains interesting. In your analysis, 17. Be3 (instead of the subtler 17.Bd2) could be tried in a game. Another option is 11. d4 e4 12. c4 Bf7 13. Nh4 h5 14. cxd5 Bxd5 15. f3 hxg4 16. fxe4 Be6 17. Qf2 or 17.Nf5. I haven't found a win, but Black has to defend carefully for a draw.
  
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Re: Spanish repertoire
Reply #495 - 01/14/16 at 13:16:13
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Confused_by_Theory wrote on 01/14/16 at 06:16:44:

Simply put. Vague oneliners and talk about intuition is often not enough to convince people.


A classic mistake on the internet. "People" in this community haven't selected you as their representative. It is much fine to say "I am not convinced if i don't see some sample analysis", (i have said this type of thing several times in this foroum) but talking on behalf of others is usually not.
  
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Re: Spanish repertoire
Reply #494 - 01/14/16 at 06:16:44
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Hello.

I checked the 17.Bd2 move from my last pgn (post #483). The idea of the move is to put the bishop on it's probable best square and when black drives it away with e3, to try and win the e3 pawn at some point. It seems though that against the likely best way forward for black (Stefan Bücker's line from reply #487), white does not seem to have much.

If white takes the pawn quite early he can enter some rook versus bishop endgames but they all look very holdable.



Ametanoitos wrote on 01/13/16 at 07:08:33:
You have the right of course not to take seriously my opinion, but you have to know that there is something called "intuition" and this has some value. Optically this position simply doesn't look nice for White as a main choice for a repertoire. It might be viable for a single game if you analyse it rather deeply. I analysed it a bit and found Black to be fine, but didn't want to start a big discussion about moves and variations because simply it doesn't look right (the line i mean)

Simply put. Vague oneliners and talk about intuition is often not enough to convince people.

As you allude to you have analysed a bit. This is good. If you don't want to publish analysis it is very much ok.



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Re: Spanish repertoire
Reply #493 - 01/13/16 at 15:56:28
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Ametanoitos wrote on 01/13/16 at 14:58:17:
Regarding the exact source, i am afraid not! Can you offer some help? Smiley

No, sorry. I had mentioned the puzzle in another thread. That's why I was asking you. Two dates are given in the literature, 1910 and 1911, no source.
  
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Re: Spanish repertoire
Reply #492 - 01/13/16 at 14:58:17
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Yes, that was the game.

Regarding the exact source, i am afraid not! Can you offer some help? Smiley
  
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Re: Spanish repertoire
Reply #491 - 01/13/16 at 11:16:10
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Ametanoitos wrote on 01/13/16 at 07:08:33:
As far as 4.d3 is concerned we had some analysis in a line which later was seen in a Caruana- Nakamura game [...]

This one?


Ametanoitos wrote on 01/13/16 at 07:08:33:
Breyer: In the book i wrote and it at the printer as i post this (out in a few weeks and before the end of the month at Forward Chess), [...]

Have you been able to find the exact source where Breyer recommended Nc6-b8?  Smiley
  
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Re: Spanish repertoire
Reply #490 - 01/13/16 at 07:08:33
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Confused_by_Theory wrote on 01/12/16 at 22:16:03:

This premise is at the moment unsupported (something which makes it hard to take seriously) and vaguely defined (something that it shouldn't be).


You have the right of course not to take seriously my opinion, but you have to know that there is something called "intuition" and this has some value. Optically this position simply doesn't look nice for White as a main choice for a repertoire. It might be viable for a single game if you analyse it rather deeply. I analysed it a bit and found Black to be fine, but didn't want to start a big discussion about moves and variations because simply it doesn't look right (the line i mean)

As far as 4.d3 is concerned we had some analysis in a line which later was seen in a Caruana- Nakamura game and since then in a lot of other ones as well. No, it was not a full repertoire coverage though.

Breyer: In the book i wrote and it at the printer as i post this (out in a few weeks and before the end of the month at Forward Chess), the line that caused me the most problems was

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nb8 10. d4 Nbd7 11. Nbd2 Bb7 12. Bc2 Re8 13. a4 Bf8 14. b3 without playing the bishop to d3 quickly.

Also Karpov's 13. Nf1 Bf8 14. Ng3 g6 15. Bg5 h6 16. Bd2 strikes me as a very easy and practical choice for White, maybe not to get an objective advantage, but the kind of line which you can fall back when a trendy theoretical line that is your first choice gets neutralised in a super-tournament. 
  
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Re: Spanish repertoire
Reply #489 - 01/13/16 at 06:54:00
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kylemeister wrote on 01/13/16 at 06:30:23:
It appears unsurprising (thinking of some other very old stuff) that Black's Angriffswille kann glänzend durchdringen when White plays Bc4 followed by Ng5   Smiley
 
OK, but Tartakower was one of the pioneers of the Jaenisch, so his gut feeling regarding 4.d3 may be worth something. Others prefer the crystal ball of the databases, and then it's 51.7% for White in 4,000 games with 4.d3 vs 56.7% for White in 8,000 games with 4.Nc3. It tells you that 4.Nc3 works pretty well in practice. Just the same as Dr. T's intuition... 

I've supported 4.d3 (see reply #356, for example), but CbT's proposal is simple, straightforward and could well be the way to go. If it works.
  
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Re: Spanish repertoire
Reply #488 - 01/13/16 at 06:30:23
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It appears unsurprising (thinking of some other very old stuff) that Black's Angriffswille kann glänzend durchdringen when White plays Bc4 followed by Ng5   Smiley
  
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Re: Spanish repertoire
Reply #487 - 01/13/16 at 04:28:24
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Confused_by_Theory wrote on 01/12/16 at 17:52:01:
While positions reached are not entirely clear I think white is reasonably safe and also there is an extra piece to work with in the long run.

In your final position, Black plays 19...Rg3 20.Rf3 Re4 21.Rxg3 Qxg3 22.Rg1 Qxf4 23.Ng4 Ke6 24.Rg2 Qf5! 25.Kg1 (25.Nxe3? Qxh3+; 25.Nh2 Rxd4 =) 25...Bf4 =. Three pawns for the piece, Black has nothing to fear. If someone finds a source where Bd6! had already been mentioned, please share it with me. It's a logical move...

The following is what Tartakower said about 4.d3 in Die Hypermoderne Schachpartie (1925), p.29: 

Quote:
Läßt man aber dem Schwarzen (z.B. mit 4.d3) Zeit, so dringt oft sein Angriffswille glänzend durch, wie folgende Lokalturnierpartie zeigt: ... Balla - Réti
 
Plain, simple German, so probably no translation necessary.   Smiley
  
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Re: Spanish repertoire
Reply #486 - 01/12/16 at 22:16:03
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Hello.

Ametanoitos wrote on 01/12/16 at 18:22:42:
Nah, this cannot be right for White.

This premise is at the moment unsupported (something which makes it hard to take seriously) and vaguely defined (something that it shouldn't be).

Ametanoitos wrote on 01/12/16 at 18:22:42:
In my opinion, the big problem for 3...f5 is 4.d3! We had analysed this here before and concluded that White is better. Why are we getting back to this i cannot really understand!

I'm fairly optimistic about's white chances in the 4.d3 line myself. It is what I play personally with good results. I am thus of course not in principle against a switch to a 4.d3 based repertoire

Considering that one ideally would like to put together this repertoire in full some day; one can ask what has been analysed after 4.d3? (referencing or reitteration is needed here) and if it is possible to make some kind of repertoire out of it? If the answers are little and not without much work then obviously there is some work cut out and an eventual finished repertoire would be a long way off.

In contrast after 4.Nc3 I would say a finished repertoire is not a long way of. This is provided we can settle for a line after 5...Nf6 (three have been suggested and at least four mentioned). The prospect of finishing some kind of repertoire in near time (and then ideally moving on) is basically why I at least am drawn to analysing 4.Nc3.

Ametanoitos wrote on 01/12/16 at 18:22:42:
Lets refute the Breyer instead! I have a coupld of ideas...

I suggest starting parallell discussions to those already in progress if you have a new line you want to analyse. Such have been known to go on before in this thread and I don't see it negatively infuencing the project; unless the suggesting of new lines goes completely out of control, which I doubt. 

Obviously I would suggest the same for those that would like a 4.d3 repertoire in the Jaenisch.

Have a nice day.

  
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Re: Spanish repertoire
Reply #485 - 01/12/16 at 20:08:28
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Ametanoitos, what is the best line against the Breyer in your opinion? 17... Nc5 in them main line seems to be good for Black
  
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Re: Spanish repertoire
Reply #484 - 01/12/16 at 18:22:42
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Nah, this cannot be right for White.

In my opinion, the big problem for 3...f5 is 4.d3! We had analysed this here before and concluded that White is better. Why are we getting back to this i cannot really understand! Lets refute the Breyer instead! I have a coupld of ideas... Tongue
  
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Re: Spanish repertoire
Reply #483 - 01/12/16 at 17:52:01
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Hello.

Maybe white can go for something like this. Didn't see any clear alternatives actually.



While positions reached are not entirely clear I think white is reasonably safe and also there is an extra piece to work with in the long run.

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Re: Spanish repertoire
Reply #482 - 01/12/16 at 15:11:44
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Hello.

Stefan Buecker wrote on 01/12/16 at 12:07:28:
8...Bg7 was the reply given by Varnusz in his Klassische Systeme oder Spanisch ohne 3...a6 (1995). His main line ran: 8.0-0!? Bg7 9.Nd4! Bd7 (9...Qd6) 10.Qh5+ Kf8 "unclear".

Something like this seems fairly nice for white.

Stefan Buecker wrote on 01/12/16 at 12:07:28:
However I believe we can agree that other lines are more critical than 8...Bg7.

Agreed. Nontheless I can put in a few lines of analysis on the move into an eventual Jaenisch 5...Nf6 summary file.


Stefan Buecker wrote on 01/12/16 at 12:07:28:
For example this one: 8...Bg4! 9.h3 Bh5! 10.g4 Bd6! (not 10...Rg8? 11.Nxe5) which offers Black more than enough compensation for the piece. White can decline the sacrifice, but after 11.d4 e4 12.Nh4 Bg6 13.f3 Qd7 Black is hardly worse. - The position had occurred before, but in Kirk Sadler - Steve Law (2009), Black played the weak 10...Bf7? 11.Sxe5 and was crushed (1-0, 17). Could 10...Bd6! be new?

Interesting. There is some amount of compensation for the piece should white take it and Bg4 is a natural move should it work. Will check this.

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Re: Spanish repertoire
Reply #481 - 01/12/16 at 12:07:28
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PatzerNoster wrote on 01/12/16 at 06:44:38:
If it is a repertoire for OTB players, we should look at the most frequently played moves.

In my DB, after 6.Qe2 d5 7.Nf6: gf6: 8.0-0 Bg7 is the main move by far, although 9.Nd4 looks strong.

8...Bg7 was the reply given by Varnusz in his Klassische Systeme oder Spanisch ohne 3...a6 (1995). His main line ran: 8.0-0!? Bg7 9.Nd4! Bd7 (9...Qd6) 10.Qh5+ Kf8 "unclear". However I believe we can agree that other lines are more critical than 8...Bg7.

For example this one: 8...Bg4! 9.h3 Bh5! 10.g4 Bd6! (not 10...Rg8? 11.Nxe5) which offers Black more than enough compensation for the piece. White can decline the sacrifice, but after 11.d4 e4 12.Nh4 Bg6 13.f3 Qd7 Black is hardly worse. - The position had occurred before, but in Kirk Sadler - Steve Law (2009), Black played the weak 10...Bf7? 11.Sxe5 and was crushed (1-0, 17). Could 10...Bd6! be new?
  
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Re: Spanish repertoire
Reply #480 - 01/12/16 at 06:44:38
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If it is a repertoire for OTB players, we should look at the most frequently played moves.

In my DB, after 6.Qe2 d5 7.Nf6: gf6: 8.0-0 Bg7 is the main move by far, although 9.Nd4 looks strong.
  
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Re: Spanish repertoire
Reply #479 - 01/12/16 at 00:03:06
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Is the repertoire for Corr. players or 2200+ OTB players?
  
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Re: Spanish repertoire
Reply #478 - 01/11/16 at 20:52:15
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Quote:
I like Stefan's 16. Rf2! Should we move on to the next line now?

It's a small plus. Whether it would satisfy a Corr player is another question...
  
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Re: Spanish repertoire
Reply #477 - 01/11/16 at 16:22:13
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I like Stefan's 16. Rf2! Should we move on to the next line now?
  
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Re: Spanish repertoire
Reply #476 - 01/11/16 at 15:08:39
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Hello.

Stefan Buecker wrote on 01/11/16 at 11:19:57:
In CbT's new sideline (just posted!) 15. Rb1 Bc5+ 16. Kh1 e3 17. Bb5 Rhe8 18. Be2 Rad8 19.g3 Nd4 (19...d4 20.Rd1) 20.Bd3 e2 21.Re1 Bb4 22.Bf4 c5 23.Kg2, Black has lots of possibilities, and I guess one of these must be good enough for a draw. More importantly, it is a complicated mess, and the risks for White in an OTB game would be about as big as for Black.

My recommendation would be 16.Rf2!, e.g. Rad8 17.Bg4 Nb4 18.Kf1 Bxf2 19.Kxf2 Nd3+ 20.Ke3. Black has a small numerical advantage, but over the board I'd prefer White - it is simply easier to play, often White regains a pawn and can then try to win with 2 pieces vs R + P.

Yes. This seems nice and fairly practical. The h1 square is not fantastic for the king.


I thought I would post something on 6...Qe7. One realisation on this is that 7.0-0 d5 (positionally forced) 8.Nxf6+ gxf6 (positionally forced) 9.d4 just transposes to our 6...d5 line so basically the gods of practicality seem to be smiling at white. Alternatives also seem decent of course:


Have a nice day.

Edit fixed a disappeared + in the pgn
  
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Re: Spanish repertoire
Reply #475 - 01/11/16 at 11:19:57
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The treatment suggested by Confused_by_theory looks promising. 

Quote:
Hi,

the 6. Qe2 and 8. 0-0 line seems to be pretty decent and will surprise a lot of opponents, however, there is one line not mentioned that probably leads to a draw:


In CbT's new sideline (just posted!) 15. Rb1 Bc5+ 16. Kh1 e3 17. Bb5 Rhe8 18. Be2 Rad8 19.g3 Nd4 (19...d4 20.Rd1) 20.Bd3 e2 21.Re1 Bb4 22.Bf4 c5 23.Kg2, Black has lots of possibilities, and I guess one of these must be good enough for a draw. More importantly, it is a complicated mess, and the risks for White in an OTB game would be about as big as for Black. 

My recommendation would be 16.Rf2!, e.g. Rad8 17.Bg4 Nb4 18.Kf1 Bxf2 19.Kxf2 Nd3+ 20.Ke3. Black has a small numerical advantage, but over the board I'd prefer White - it is simply easier to play, often White regains a pawn and can then try to win with 2 pieces vs R + P. 
  
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Re: Spanish repertoire
Reply #474 - 01/11/16 at 10:46:06
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Hello.

Have now looked some at 13...Nxd4 and can say that white ends up in various slightly better endgames. Play after 13...Nxd4 is basically not forcing, even if some moves in each given continuation of course are. Some lines:


Winning chances etc. can of course be discussed (ad infinitum - if I know anything about the chesspub forum) but the relevance for this seems vague considering we are basically trying to create an opening repertoire and not for example do deep endgame analysis. 
That being said it useful for the repertoire to avoid lines with obviously zero winning chances.

Have a nice day.
  
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Re: Spanish repertoire
Reply #473 - 01/10/16 at 23:04:53
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Hello.

Interesting try. Of course I had missed looking at 13...Nxd4.

Will take a look after I've finished watching the american football game Im enjoying atm.

Somehow I doubt though that black has some forced line to a safe position.

Have a nice day.
  
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Re: Spanish repertoire
Reply #472 - 01/10/16 at 22:58:01
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White goes 28. Rf1 and f6 or h5 fall off. The engine says 0.37 for White or something like that but I don't think White has real winning chances...

Therefore, I recommend 4. d3, if people don't have anything against 13... Nxd4 or an improvement for White before that, I'll post some analysis on 4. d3.
  
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Re: Spanish repertoire
Reply #471 - 01/10/16 at 22:29:51
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@NegiRefutes: in the final position of your analysis, I am curious how white will hold the draw.
Can he avoid a rook exchange? If not it seems dead lost as the pieces are inferior to a rook and the (soon to be) two connected passed pawns on the queenside.
  
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Re: Spanish repertoire
Reply #470 - 01/10/16 at 22:02:28
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Hi,

the 6. Qe2 and 8. 0-0 line seems to be pretty decent and will surprise a lot of opponents, however, there is one line not mentioned that probably leads to a draw:

  
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Re: Spanish repertoire
Reply #469 - 01/10/16 at 20:34:48
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Hello.

I have now looked a bit at something after (5...Nf6) in the Jaenisch. 

Given the for me uninspiring nature of the pawn up white positions in either:

(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6+ Qxf6 7.Qe2 Be7 8.Bxc6 bxc6 9.Qxe5 d6 10.Qxf6 Bxf6) or
(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6+ Qxf6 7.Qe2 Be7 8.Bxc6 bxc6 9.Nxe5 Qe6)

I did not look at these lines. Instead I took a step back and investigated:

(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Qe2)
 
With the major benefit of this line being that stuff is not exchanged. Initially, after the principled reply to 6.Qe2 of 6...d5, I was planning on going for the line:

(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Qe2 d5 7.Nxf6+ gxf6 8.d4)

Mentioned in the thread previously, though not as far as I can see analysed. Realising that an alternative to 8.d4 exists in 8.0-0 I started looking at this and I must say I was quite pleased with the positions reached. I bring you a short pgn of roughly how a repertoire in this line could look like:



Basically I thought I'd ask if anyone sees any drawbacks to this 6.Qe2, 8.0-0 line or if it is something that can be recommended in the Spanish repertoire?

Have a nice day.
  
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Re: Spanish repertoire
Reply #468 - 01/06/16 at 16:00:16
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Hi,

8... bxc6 in the main  line seems to be completely fine for Black, here is some analysis:



Unless someone has a big improvement on this, I think 4. d3 is a better option.
  
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Re: Spanish repertoire
Reply #467 - 01/06/16 at 06:12:47
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Hi.

Besides reading through the thread I have looked a fair bit at all the non (5...Nf6) lines. Using the Jaenisch analysis found in the analysis summary from post #265 as base I've been trying to find small refinements and the simple ways to the += when I think I've seen them. 

I present to you a non (5...Nf6) Jaenisch repertoire outline suggestion.



Needless to say a plan would be to make something similar about the (5...Nf6) lines and then maybe fuse that with the file above. That should produce a reasonable Jaenisch repertoire.

Have a nice day.

Edit: attached the file in the pgn window
  
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Re: Spanish repertoire
Reply #466 - 01/06/16 at 03:32:40
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Hello.

Confused_by_Theory wrote on 01/02/16 at 20:34:57:
I think I will look into if the Jaenisch coverage is sufficient and post a Jaenisch specific PGN.

Alright. After a fair bit of reading I have come to think that at least the Jaenisch coverage in this thread is very near enough to build a repertoire from. This is true at least for a 4.Nc3 repertoire. The other move 4.d3 has been mentioned as an alternative, though I have not seen much groundwork analysis for a 4.d3 repertoire in the thread; which would be needed.

I would say that for a 4.Nc3 repertoire with the lines discussed in this thread there are two definite mainlines to crack:

(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nf6 Nxf6+ 6.Qxf6 Qe2 7.Be7 Bxc6 8.dxc6)
(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nf6 Nxf6+ 6.Qxf6 Qe2 7.Be7 Bxc6 8.bxc6)

In the 8.dxc6 line as far as I can tell nothing has progressed since TN's magnificent summary of analysis done in post #265 (another summary seems not to have been done since this one btw). If this is enough analytically then the analysis should just be polished (I can do this if no one else will) before being bunched together with the other lines in the Jaenisch repertoire.

In the 8.bxc6 line the much discussed line from post #199 seems to have been hard to find a meaningful advantage in. Perhaps because of this another line was proposed in #362. It seems clear to me that these are two lines that both require a substantial body of proof before they can be considered +=. I wonder if we have this and which of the lines (if any) is to be chosen in the repertoire?

I await some kind of comment on these lines. If we decide to go for something in either line I will gladly help analyze.

Have a nice day.
  
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Re: Spanish repertoire
Reply #465 - 01/02/16 at 22:33:43
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Here is some very brief analysis that needs much more work:



  
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Re: Spanish repertoire
Reply #464 - 01/02/16 at 22:30:22
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I suggest that we move on to analyzing the Breyer.

I think two lines might be necessary because the Breyer is extremely solid and having two lines so that we can mix up our choices might be good. 

I like the 14. Bg5 line and I think it deserves more attention.
  
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Re: Spanish repertoire
Reply #463 - 01/02/16 at 20:34:57
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Hello.

To get an overview of what has been analyzed i took to counting the pgn:s that have been produced so far in this thread, while also noting which line they were about.

#number indicates posts in this thread. For example #60 means there is a PGN in post number 60.

(1.e4 e5 2.Nf3 Nc6 3.Bb5 f5) 
#60, #144, #191, #308, #348, #351, #362, #447

(1.e4 e5 2.Nf3 Nc6 3.Bb5 a5)
#99

(1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5)
#189

(1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7)
#209

Summaries
#217, #222, #265

(1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.0-0)
#229

(1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3 0-0 8.c3 d5)
#396, #400, #404, #413, #417, #427

(1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3 0-0 8.h3)
#439

(1.e4 e5 2.Nf3 Nc6 3.Bb5 f6)
#452 

It seems the Jaenisch is what has been getting the most attention, while actually the mainline-esque Marshall has been getting som decent coverage also.
Which lines have reached a point where they can be deemed to have been analyzed sufficiently I don't know. 
I think I will look into if the Jaenisch coverage is sufficient and post a Jaenisch specific PGN.

Have a nice day.
  
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Re: Spanish repertoire
Reply #462 - 01/02/16 at 20:04:50
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Sounds like a fair way to approach the problem to me.  Grin
  
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Re: Spanish repertoire
Reply #461 - 01/02/16 at 20:01:51
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TonyRo wrote on 01/02/16 at 18:46:46:
Also, what is the actual goal? I mean, at least for me, if you analyze anything deeply in enough, you'll likely find equality for Black in every line of the Ruy Lopez - I doubt 1.e4 e5 2.Nf3 Nc6 3.Bb5! is a forced win for White!
 
Your belief (a very reasonable belief, imo) isn't necessarily a contradiction to Markovich's approach. In reply #19 he said the following: 

Markovich wrote on 07/24/11 at 20:32:44:
I don't say we should try to prove +=.  I say that our starting assumption should be that with best play, that's what White gets. If we find ourselves with less at some point, this will indicate we should either look deeper or change approaches.

So I believe that with this, which is Principle #4, and Principle #1, we already have a complete set of criteria for selecting White's moves. As for Black's, we are compelled to consider any that do not obviously result in += or better for White.

If += isn't realistic, call it as you prefer. Initiative? A little something? 
  
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Re: Spanish repertoire
Reply #460 - 01/02/16 at 19:04:26
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Quote:
Why are people asking questions about moves like 3... a5 and 3... f6? Do you think top GM's even have a DB on moves like this?

This is completely ridiculous and people should be focusing on the main lines!



Well, I understand what Stefan wrote in the previous post. But what you write is... ah, forget it.

Have you ever taken a closer look at the development of opening theory? You think your own behavior would have changed  anything in that development course? Would you have been a part of the indian evolution on 1.d4? Would you have found 3...a6 in the Slav worth playing? Would you have actively taken part in the development of say 3...c6 or 3...e5 in the Pirc? No, would you have accepted the Pirc at all?

When looking back in theoretical development: when would it have been time for you to quit the flow of sideline novelties to save the "mainlines"? Perhaps before Breyer's irritating jump back with Nc6-b8 in the Lopez?   

To change a question of your own:  Do you think you would have the slightest chance playing a top GM if he would play the ridiculous moves 3...a5 or 3...f6 against you?! 

Nevertheless I wish you the best in discussing main lines. There too are loads of novelties but that allways need an open mind...
  

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Re: Spanish repertoire
Reply #459 - 01/02/16 at 18:46:46
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I would be happy to trot on (I did little to nothing in the first wave, but I was working on my book), but perhaps someone needs to organize an update on the status of the lines examined?

Also, what is the actual goal? I mean, at least for me, if you analyze anything deeply in enough, you'll likely find equality for Black in every line of the Ruy Lopez - I doubt 1.e4 e5 2.Nf3 Nc6 3.Bb5! is a forced win for White!
  
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Re: Spanish repertoire
Reply #458 - 01/02/16 at 12:19:10
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This thread should continue in the spirit of the late Markovich, imo. May he rest in peace. We had our disagreements, but he wasn't shy of discussing offbeat lines. What we agreed on was that there must be someone who gives the talk a direction. Someone saying at a certain point: "we should stop here, this is '+=' enough for me. Let's move on to another line." That moment would have come relatively early with 3...f6, I guess. 

motörhead wrote on 01/01/16 at 20:48:04:
I'm a bit confused why to first save e5 with f7-f6 and than to surrender that strengthened point with e5xd4 (your suggestion 14...exd4). Well yes, Nimzovich's "Sägestellung" against pawn e4...

It's hard for White to attack Black's structure c6, d6, f6, and there is enough room for black counterplay. Similar to the misjudged Englund Declined. As in "anything goes, I can even decline the Englund and keep a solid plus".
  
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Re: Spanish repertoire
Reply #457 - 01/02/16 at 10:31:05
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Hi.

Quote:
Why are people asking questions about moves like 3... a5 and 3... f6?

Basically, for better or worse, because no one has pushed through rules preventing discussion and analysis of highly offbeat tries.

Quote:
Do you think top GM's even have a DB on moves like this?

No.

Quote:
This is completely ridiculous and people should be focusing on the main lines!

This... 
or 
Continuing with analysing black's various 3rd moves...
or
Checking lines already looked at.

Either way I think consolidation of results before moving on is very important (I don't think baking a mega PGN is enough on its own here).

Have a nice day.
  
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Re: Spanish repertoire
Reply #456 - 01/02/16 at 05:36:05
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Why are people asking questions about moves like 3... a5 and 3... f6? Do you think top GM's even have a DB on moves like this?

This is completely ridiculous and people should be focusing on the main lines!
  
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Re: Spanish repertoire
Reply #455 - 01/01/16 at 20:48:04
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Stefan Buecker wrote on 12/24/15 at 12:31:11:

I wonder whether I ever looked at 3...f6 again. Thought the analysis was in the same file as 3...Bb4, but there was only 3...Rb8!. [...] Basically my idea was: "static defences" like Qxf4 followed by d6 and f6 in the King's Gambit work, as what can White do? A few years later I understood that the answer to this rhetorical question was: White can do a lot. Even if the first move were OK, after 14...Nef4 followed by h5-h4, White has a ton of possibilities. I still can't find a clear refutation, but the whole concept is clearly very optimistic. 

A few years later, after working on the Englund Gambit, I might have recommended 14...exd4! instead. The arrangement of pieces and pawns in the center is really similar to the Englund.


Yes that is the point of Steinitz' artistic, irritating, sometimes ridiculous approaches on his strongpoint e5 concept. He had quite some tries on that very subject, the one or the other even ending in complete reocupation of his back rank with his pieces...

But in fact f7-f6 takes at the earliest possibility the sting out of the spanish concept - the weakness e5 is covered.

This idea reurns in the Modern Steinitz Defence, Alapin Variation: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.Bxc6 bxc6 6.d4 f6 (C73). Is it to bad?!

I'm a bit confused why to first save e5 with f7-f6 and than to surrender that strengthened point with e5xd4 (your suggestion 14...exd4). Well yes, Nimzovich's "Sägestellung" against pawn e4...

Stefan Buecker wrote on 12/24/15 at 12:31:11:

Whether all this is relevant at all for the assessment of 3...f6, I have my doubts... Several moves of Tarrasch were "pragmatic" (a3, Bc4, h3, Kh2), not necessarily the most challenging in a theoretical sense. So if the opponent is not a very strong player, maybe it can work.


Pragmatic, yes. After f7-f6, the Bb5 has played his mayor role, or am i wrong? Yes, due to the pin of the Nc6 he further put's a question to the ideal d7-d6 (but more than once that never the less may work as there are a7-a6 and b7-b5 to break the pin). Returning to c4 is natural, but a tempo down to the Italian (but a weakness up on a2-g8 - but is this too relevant?!). a2-a3 saves the italian like bishop (against Nc6-a5) and h2-h3 is... normal Lopez, isn't it.
The pragmatism bases on the work of the strongpoint e5. I don't see how this can be overruned. What are those challenging moves?!   
Browsing through Steintz' games with the strongpoint e5 concept he more than once ended in a sort of king's indian structure. 
He had not too much luck with it, which may have its reasons in the exhaustive backward tended play - as for example Tarrasch - Steinitz shows. 
At the end he surrendered the exaggerated attempts on it. May be a sign...
But as you Stefan showed with your 14...Nef4 idea there are more active concepts - which in return give white some prospects for play. "White has a ton of possibilities", well that is a bit much of it...

Stefan Buecker wrote on 12/24/15 at 12:31:11:

For a "theoretical" discussion, the Marshall Gambit should be a priority, but final conclusions are not easy to see. Presently I think Black is fine.


No, no that is not you Stefan.That is perhaps Max Euwe of the 1950s. Not only some selected main variations count... Not today.
Shall we really confine ourselfs to search for novelties in move 38 or later??

Remeber after all: Even Magnus Carlsen once played the North Sea Defence (1.e4 g6 2.d4 Nf6 - okay that's another topic but quite offside as well) against Aronian if I am right. He got his share of played, but lost, but not due to the opening. 

  

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Re: Spanish repertoire
Reply #454 - 12/26/15 at 23:20:56
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CarriedbyGg wrote on 12/24/15 at 12:43:51:
Actually, I do not see the point behind f6 in the relatively simple line 1. e4 e5 2. Nf3 Nc6 3. Bb5 f6 4. d4 and no matter wether Black takes to times or only one time (as let White get d5 in would trouble Black a bit) White should have a comfortable edge due to the weakening of the Black kingside and the lead in development.

The game Tarrasch - Steinitz shows that Steinitz was willing to play the position after d4-d5. So if 4.d4 Nge7 5.d5 a6 6.Bd3 Nb8, what do you get what you wouldn't in Tarrasch's move order? On the other side, 4.d4 gives Black a serious additional option in 4...exd4 5.Nxd4 Nxd4 6.Qxd4 Bd6, e.g. 7.Bc4 Ne7 8. Nc3 Be5 9.Qd1 c6 10.0-0 b5 11.Bb3 a5 12.a3 Ba6. Maybe 13.Qh5+ is good for White, but this kind of tactics can't be the "clear refutation" that you'd want. 
  
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Re: Spanish repertoire
Reply #453 - 12/24/15 at 12:43:51
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Actually, I do not see the point behind f6 in the relatively simple line 1. e4 e5 2. Nf3 Nc6 3. Bb5 f6 4. d4 and no matter wether Black takes to times or only one time (as let White get d5 in would trouble Black a bit) White should have a comfortable edge due to the weakening of the Black kingside and the lead in development. 
  
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Re: Spanish repertoire
Reply #452 - 12/24/15 at 12:31:11
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motörhead wrote on 12/24/15 at 08:16:01:
As Stefan ist back on the scene, I take the opportunity to just repeat my last post, which was directed to him and stands unanswered.

What about 3...f6!??! in the Lopez?!
See previous post for details.
Thx and merry christmas.

I wonder whether I ever looked at 3...f6 again. Thought the analysis was in the same file as 3...Bb4, but there was only 3...Rb8!. Now I have to leave for Christmas festivities, so right now this has to suffice. Basically my idea was: "static defences" like Qxf4 followed by d6 and f6 in the King's Gambit work, as what can White do? A few years later I understood that the answer to this rhetorical question was: White can do a lot. Even if the first move were OK, after 14...Nef4 followed by h5-h4, White has a ton of possibilities. I still can't find a clear refutation, but the whole concept is clearly very optimistic. 

A few years later, after working on the Englund Gambit, I might have recommended 14...exd4! instead. The arrangement of pieces and pawns in the center is really similar to the Englund. 

Whether all this is relevant at all for the assessment of 3...f6, I have my doubts... Several moves of Tarrasch were "pragmatic" (a3, Bc4, h3, Kh2), not necessarily the most challenging in a theoretical sense. So if the opponent is not a very strong player, maybe it can work.



For a "theoretical" discussion, the Marshall Gambit should be a priority, but final conclusions are not easy to see. Presently I think Black is fine.
  
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Re: Spanish repertoire
Reply #451 - 12/24/15 at 09:34:04
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Jonathan Tait wrote on 12/24/15 at 09:22:59:
motörhead wrote on 02/01/15 at 20:54:01:
3... f6? (a normal question mark, not one judging the quality of the move -at least at first...)


to avoid confusion, I'd write it like this:

"3...f6 - ?"

Smiley



Write it as you like.

I tried to avoid that the move 3...f6 gets the question mark that is simply given as the normal mark at the end of a question...

As pointed out I'm at least not sure about this move. But Stefan had it in a quite positive conotation in the given source...
  

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Re: Spanish repertoire
Reply #450 - 12/24/15 at 09:22:59
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motörhead wrote on 02/01/15 at 20:54:01:
3... f6? (a normal question mark, not one judging the quality of the move -at least at first...)


to avoid confusion, I'd write it like this:

"3...f6 - ?"

Smiley
  

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Re: Spanish repertoire
Reply #449 - 12/24/15 at 08:16:01
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As Stefan ist back on the scene, I take the opportunity to just repeat my last post, which was directed to him and stands unanswered.

What about 3...f6!??! in the Lopez?!
See previous post for details.

Thx and merry christmas.
  

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Re: Spanish repertoire
Reply #448 - 02/01/15 at 20:54:01
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Stefan Buecker wrote on 07/24/11 at 17:42:29:
To study mainly the popular moves would, in my opinion, contradict Markovich's idea to "prove +=" for White. But I'll watch what happens. There ARE moves which are fine, only unusual and therefore unpopular. I believe that 3...Bc5 = is objectively best. I am not fond of Na5, g5, Bb4, f6, but 3...a5 deserves a look. - As arbiter we have engines, if we regard lines above, say, +0.35 (in R4) as "solved", fine with me.



Just for interest: What has changed your mind on 3... f6? (a normal question mark, not one judging the quality of the move -at least at first...).

As far as I remember your mind on it wasn't too bad in a special section of "Nordwalder Variante im Königsgambit". The insights you gave where interesting. Okay it was pre-computer era and there may be 
improvements. And after all: Wasn't it about 4.a3, making place for Bb5-c4-a2? A bit slow...

I think, 4.d4 is more testing...
  

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Re: Spanish repertoire
Reply #447 - 06/28/14 at 06:27:03
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Stefan Buecker wrote on 10/30/11 at 14:21:00:
MNb wrote on 10/30/11 at 13:36:00:
Stefan Buecker wrote on 10/30/11 at 12:44:34:
In my opinion 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6+ Qxf6 7.Qe2 does not work, because 7...Be7 8.Bxc6 bxc6 is =.
I hope you will forgive my scepticism, but I need a little more to be convinced. OK, it wouldn't surprise me if accepting the pawn provides compensation (although this needs to be proven yet) but I quite like 9.d4. Three sample lines:
a) 9...exd4 10.Bg5 Qe6 11.Qxe6 dxe6 12.Bxe7 Kxe7 13.Nxd4 and White has a very nice and stable advantage, Janovsky-Tseshkovsky, Voskresensk 1992.
b) 9...O-O 10.Bg5 Qe6 (Qg6 11.Bxe7+ Re8 12.O-O Rxe7 13.Nxe5 is excellent for White as the pin always can be be resolved by Qc4+) 11.Bxe7 Qxe5 12.dxe5 and White is at least a bit better, Adorjan-Cortlever, Amsterdam 1970.
c) 9...Qg6 10.O-O d6 11.Qc4 d5 12.Qc3 exd4 13.Nxd4 Bd7 14.Re1 Qf6? (better Kf7 but 15.Bf4 remains nice for White; the Knight is not weaker than the Bishops, but Black's pawns are weaker than White's) 15.Nxc6 Qxc6 16.Qxg7 and White has the attack, Copar-Auzins, corr ICCF 1997.

13...c5!! =.

While preparing for yesterdays cupmatch, I bumbed on a very interesting new idea: 12.Qb3

Black can surely improve with 12. ... e4 but even then after 13.Ne5 Qe6 14.Qa4 Bb7 15.f4 0-0 16.Be3 Bd6 17.Rac1 and still a small pull. It is just a quick analysis more than sufficient for a rapid OTB game. Still it is worth a closer look especially as the other critical lines were not convincing either.

I also checked who the white player is and found out to my surprise that he is also from Belgium. He has no official rating and I've never heard about him but he does have on ficgs a remarkable record: http://www.ficgs.com/player_3862.html so 136 games without a loss !
  
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Re: Spanish repertoire
Reply #446 - 02/10/13 at 15:15:01
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Stefan is now in action at the Chess Classic ELO Open, as proved by these moves (versus Parimarjan Negi) a couple of days ago:  1. e4 c5 2. a4.
  
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Re: Spanish repertoire
Reply #445 - 01/28/13 at 14:35:56
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I hope indeed that our chessfriend is well.

@Smyslov_Fan:  Notwithstanding that the Marshall is a tough nut, I don't think that many people will agree that White's d3 in the Spanish could possibly be "the best move from a theoretical perspective."
  

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Re: Spanish repertoire
Reply #444 - 01/27/13 at 01:00:46
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Markovich wrote on 01/26/13 at 15:42:20:

By the way, has anybody heard from our friend Stefan?  I sent him a message several days ago and have not heard back.


If you look at his website he scheduled a new issue of Kaissiber for April 2012 but nothing has happened. He also writes about an illness. I hope it hasn´t returned. Sad
  
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Re: Spanish repertoire
Reply #443 - 01/26/13 at 19:33:06
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Markovich, you are right that d4 is more critical than d3. But if Black can reach equality, say in the Marshall, but it's not clear how Black can reach equality against d3, then d3 becomes the best move from a theoretical perspective. 

The question is: can white find a usable advantage against the Marshall?
  
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Re: Spanish repertoire
Reply #442 - 01/26/13 at 15:42:20
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That may be, but this mode of play says, "I'm not going to beat you because I'm White; I'm going to beat you because I'm Bogolyubov."  Carlsen in particular is well known for playing unassuming systems and just beating people with no help from theory.

This being a theoretical forum and the custruction of a Spanish repertoire being a theoretical pursuit, I think we should look for += or whatever approximates it most closely.  This is the >Spanish<, after all!

By the way, has anybody heard from our friend Stefan?  I sent him a message several days ago and have not heard back.
  

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Re: Spanish repertoire
Reply #441 - 01/25/13 at 18:48:13
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A lot of strong GMs, beginning with Carlsen, seem to be playing the d3 Spanish as White. It's a really slow system with many similarities to the Breyer Defense. And, just like the Breyer, the  player with the better sense of where the pieces belong in this pawn structure will win.
  
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Re: Spanish repertoire
Reply #440 - 01/21/13 at 19:08:31
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Yes, Kamsky's 11. Nxe5 Nxe5 12. Rxe5 Qd6! is fine too.
  
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Re: Spanish repertoire
Reply #439 - 01/21/13 at 11:13:36
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Markovich wrote on 01/20/13 at 21:30:12:
What is the current notion of Black's best play after 8.h3?  Is it so easy for him?


I would guess it's 8...Bb7 9. d3 d5 10.ed5 Nd5 11. Ne5 Nd4 for approximate equality and even 11...Ne5 seems to be fine for Black.

  
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Re: Spanish repertoire
Reply #438 - 01/20/13 at 21:30:12
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What is the current notion of Black's best play after 8.h3?  Is it so easy for him?
  

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Re: Spanish repertoire
Reply #437 - 01/13/13 at 23:16:19
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Ametanoitos wrote on 12/23/12 at 09:44:27:
So, we can go for the Main Line pawn grab but play d3 instead of d4. It looks like a decent practical try.

I don't think white has anything after for example 12.d3 Bd6 13.Re1 Bf5 14.Qf3 Qf6 15.Bxd5 cxd5 16.Bf4 Bxf4 17.Qxf4 d4
or did you have something else in mind?
  
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Re: Spanish repertoire
Reply #436 - 12/23/12 at 09:44:27
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So, we can go for the Main Line pawn grab but play d3 instead of d4. It looks like a decent practical try.
  
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Re: Spanish repertoire
Reply #435 - 12/21/12 at 00:00:45
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I think 8.d4 gives white an edge if black takes the pawn but after 8..d6 we are forced to play c3-d4 main line instead of c3-h3 main line which might not be to everyone's liking (althought this variation is popular lately and serious try for white, it also cuts amount of work as there are no Breyer's, Zaitsev's, Chigorins etc which are all tough nuts to crack).
  
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Re: Spanish repertoire
Reply #434 - 12/20/12 at 13:13:08
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Ametanoitos wrote on 12/07/12 at 10:06:50:
By the way, strong seems to be:

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3 15.Re4 g5 16. Qf1 Qh5 17. f3 Bf5 18. Nd2 Rae8 19. Rxe8 Rxe8 20. Ne4 Bxe4 21. fxe4 Rxe4 22. Bd1 g4 23. Bd2 c5 24. Qg2 Re6 25. Bb3 c4 26. Bc2 Ne3 27. Bxe3 Rxe3 28. Rf1 b4 

(so far PFREN's analysis)

29. cxb4 Bxb4 30. Bd1! and White has some edge.

Any improvements?


I don't know that I see much advantage for White after 30...Rd3 31.Qb7 Rd2.  Do you? White's h-pawn must advance, either one or two squares, and then Black's g-pawn falls.  But Black's bishop goes to d6, and White doesn't seem to have the basis of a win, in my reckoning.

I think whatever we recommend shouldn't involve analysis out beyond move 30.  Either it should yield something resembling a stable advantage before then, or we should recommend an anti-Marshall, probably 8.h3.
« Last Edit: 12/20/12 at 16:07:42 by Markovich »  

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Re: Spanish repertoire
Reply #433 - 12/14/12 at 15:45:59
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I agree with punter there is no good way of tackling the marshall, you should start with the anti lines right away with either a4 or d3.  The lines in the marshall will not give white a good chess game even if he keeps an advantage.
  
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Re: Spanish repertoire
Reply #432 - 12/13/12 at 14:15:53
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Well, Re1 c3 setup is becoming a sideline these days in top GM practice but if you want to concentrate on that then fine. I just think it's not a practical choice.
If you find that analysis somehow along the way please link me. I spent some time banging my head vs Marshall so I am interested in that.
  
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Re: Spanish repertoire
Reply #431 - 12/13/12 at 12:17:25
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Punter, please take a look at the subject we are discussing. We were supposed to make a Spanish repertoire for White in the Spanish, so Marshall is quite an important subject we should concentrate at some point. Also, above (and in another thread i cannot remember now) me and FM Buecker gave analysis on 18...Nf6 and the conclusion was the White some some edge.
  
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Re: Spanish repertoire
Reply #430 - 12/10/12 at 03:00:44
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18...Nf6.

Imo you shouldn't concentrate on Marshall. It's extremely sound and basically a race who remembers more.
  
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Re: Spanish repertoire
Reply #429 - 12/07/12 at 10:06:50
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By the way, strong seems to be:

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3 15.Re4 g5 16. Qf1 Qh5 17. f3 Bf5 18. Nd2 Rae8 19. Rxe8 Rxe8 20. Ne4 Bxe4 21. fxe4 Rxe4 22. Bd1 g4 23. Bd2 c5 24. Qg2 Re6 25. Bb3 c4 26. Bc2 Ne3 27. Bxe3 Rxe3 28. Rf1 b4 

(so far PFREN's analysis)

29. cxb4 Bxb4 30. Bd1! and White has some edge.

Any improvements?
  
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Re: Spanish repertoire
Reply #428 - 12/06/12 at 17:24:05
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I cannot help but admire your work on this. There are many little details which i investigated but i didn't really find anything more than a symbolic edge for White. Maybe we should investigate this one:

Hotting, Arend
Thomson, Thomas
corr, 2004

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3 15.Re4 g5 16. Qf1 Qh5 17. f3 Bf5 18. Re1 Rae8 19. Nd2 Bd3 20. Qf2 Nf6 21. Re3 Rxe3 22. Qxe3 Qg6 23. Ne4 Bxe4 24. fxe4 Nxe4 25. a4 Re8 26. axb5 Bf4 27. Qd3 Bxc1 28. Rxc1 axb5 29. Rf1 Re7 30. Qe3 h6 31. g4 Kf8 32. d5 1-0

Please note that the same position can also arise by transposition of moves after 18.Nd2 Rae8 19.Re1.

Now that i think of it, it may be a more practical choice to choose the move order of the above game if someone wants to avoid the theory of the 18.Nd2 Nf6 line. Just an idea.
  
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Re: Spanish repertoire
Reply #427 - 09/12/12 at 11:42:25
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OK, here it is. It was done without much checking, so you'd better check it yourself, but I believe the variations given are quite valid. White has nothing- factly I think the whole variation is more tricky to handle properly as white.
Computers give at first a preponderance to white's pawn, but following natural moves they abruptly change their mind at some point. The Marshal is just too tough to die by such an unassuming line.
  
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Re: Spanish repertoire
Reply #426 - 09/12/12 at 08:16:16
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Vass wrote on 09/12/12 at 06:35:24:
PANFR wrote on 09/11/12 at 23:23:38:
Personally, I find the Marshal line given by Ametanoitos quite clever, but still offering no advantage at all to white.
17.f3 Bf5 18.Nd2 Rae8! and now:
- 19.Qf2?! Bxe4 20.fe4 f5! and Black is at least equal.
- 19.Bd1!? Bh3 20.Qf2 f5 21.Rxe8 Rxe8 22.a4 Re7! 23.Nb3 Qe8 24.Bd2 Bf4! was shortly drawn at a correspondence game. White can try to improve with 22.Nb3, but after 22...f4 23.g4 Qf7 24.Nd2 Qg6! 25.Ne4 Bc7 26.Nc5 h5 Black stands very well.
- 19.Rxe8 Rxe8 20.Ne4 Bxe4 21.fe4 Rxe4 22.Bd1 g4 has been played seven times (by transposition). White was not able to win a single game.

Well, in your line 19.Bd1!? Bh3 20.Qf2 f5 21.Rxe8 Rxe8 22.a4 Re7! 23.Nb3 Qe8 24.Bd2 Bf4! the move 21.Rxe8 is not forced at all. I think 21.Re2 is better instead.  Wink


Black still has strong counterplay by sensibly playing down the e-file, it seems.  I wouldn't worry a bit about such a computerized move, say after 21...Rxe2 22.Bxe2 Re8. I will post some analysis soon.
  
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Re: Spanish repertoire
Reply #425 - 09/12/12 at 06:35:24
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PANFR wrote on 09/11/12 at 23:23:38:
Personally, I find the Marshal line given by Ametanoitos quite clever, but still offering no advantage at all to white.
17.f3 Bf5 18.Nd2 Rae8! and now:
- 19.Qf2?! Bxe4 20.fe4 f5! and Black is at least equal.
- 19.Bd1!? Bh3 20.Qf2 f5 21.Rxe8 Rxe8 22.a4 Re7! 23.Nb3 Qe8 24.Bd2 Bf4! was shortly drawn at a correspondence game. White can try to improve with 22.Nb3, but after 22...f4 23.g4 Qf7 24.Nd2 Qg6! 25.Ne4 Bc7 26.Nc5 h5 Black stands very well.
- 19.Rxe8 Rxe8 20.Ne4 Bxe4 21.fe4 Rxe4 22.Bd1 g4 has been played seven times (by transposition). White was not able to win a single game.

Well, in your line 19.Bd1!? Bh3 20.Qf2 f5 21.Rxe8 Rxe8 22.a4 Re7! 23.Nb3 Qe8 24.Bd2 Bf4! the move 21.Rxe8 is not forced at all. I think 21.Re2 is better instead.  Wink
  
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Re: Spanish repertoire
Reply #424 - 09/11/12 at 23:23:38
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Personally, I find the Marshal line given by Ametanoitos quite clever, but still offering no advantage at all to white.
17.f3 Bf5 18.Nd2 Rae8! and now:
- 19.Qf2?! Bxe4 20.fe4 f5! and Black is at least equal.
- 19.Bd1!? Bh3 20.Qf2 f5 21.Rxe8 Rxe8 22.a4 Re7! 23.Nb3 Qe8 24.Bd2 Bf4! was shortly drawn at a correspondence game. White can try to improve with 22.Nb3, but after 22...f4 23.g4 Qf7 24.Nd2 Qg6! 25.Ne4 Bc7 26.Nc5 h5 Black stands very well.
- 19.Rxe8 Rxe8 20.Ne4 Bxe4 21.fe4 Rxe4 22.Bd1 g4 has been played seven times (by transposition). White was not able to win a single game.
  
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Re: Spanish repertoire
Reply #423 - 08/04/12 at 21:06:55
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Ametanoitos wrote on 08/04/12 at 12:46:46:
OK, lets move on. Btw, did we "solve" 3...f5?

Yes, I think so, in the sense that White has +=.
  
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Re: Spanish repertoire
Reply #422 - 08/04/12 at 12:46:46
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OK, lets move on. Btw, did we "solve" 3...f5?
  
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Re: Spanish repertoire
Reply #421 - 08/04/12 at 08:00:08
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Ender wrote on 08/03/12 at 08:37:36:
How about 
1.e4 e5 2.Nf3 Nc6 3.Bb5 Bb4 4.c3 Ba5 5.Qa4 Nge7!?

I think white is better, but black is not lost yet.

The analysis in Bernhard Lach: Die Alapin-Variante in der Spanischen Eröffnung (Schwieberdingen 1995) goes 5...Nge7 6.Nxe5 Nxe5 7.Qxa5 N7c6 8.Qa4 Qg5. "Black has sufficient counterplay for the pawn, e.g. 9.0-0 Nf3+ 10.Kh1 Qf4" - Lach. Checking my analysis file, the critical reply is 9.Kf1!. White has no weakness which Black could easily attack. This is indeed one of the better variations for Black, but I haven't found equality, and +/- seems a fair assessment. 

In my Marshall analysis, variation 30.axb5, White can try 38.Kf2 instead of 38.Bf4. Again I believe that Black holds, but that's not the point. Ametanoitos' suggestion must be assessed as +=, no question about it.
  
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Re: Spanish repertoire
Reply #420 - 08/03/12 at 08:37:36
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Stefan Buecker wrote on 08/03/12 at 08:06:45:
Hadron wrote on 08/03/12 at 00:46:12:
Stefan Buecker wrote on 10/24/11 at 19:18:12:

1.e4 e5 2.Nf3 Nc6 3.Bb5 Bb4 4.c3 Ba5 5.Qa4 Bb6 6.d4 exd4 7.cxd4 Nge7 8.d5 Nb8 9.Bf4! is +/-. Thus 3...Rb8 must be preferred, again.

I am sure you are right….although two articles I have by Gerard Welling would tend to suggest there is scope for some investigation (and or improvement) on what you have given.

Not easy to cure the Alapin, but of course you can try. 7...Nge7 was my latest attempt, the line 7...d5 has other problems. Gerard's articles are great, because he considers many original analyses by Alapin. Very motivating for anyone with an interest in chess history. I have also studied the "large Alapin" 3...a6 4.Ba4 Bb4" and the "extra large Alapin XL" 3...a6 4.Ba4 b5 5.Bb3 Bb4!?, the topic is really too "large" for a debate on chesspub.  Smiley


How about 
1.e4 e5 2.Nf3 Nc6 3.Bb5 Bb4 4.c3 Ba5 5.Qa4 Nge7!?

I think white is better, but black is not lost yet.
  

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Re: Spanish repertoire
Reply #419 - 08/03/12 at 08:06:45
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Hadron wrote on 08/03/12 at 00:46:12:
Stefan Buecker wrote on 10/24/11 at 19:18:12:

1.e4 e5 2.Nf3 Nc6 3.Bb5 Bb4 4.c3 Ba5 5.Qa4 Bb6 6.d4 exd4 7.cxd4 Nge7 8.d5 Nb8 9.Bf4! is +/-. Thus 3...Rb8 must be preferred, again.

I am sure you are right….although two articles I have by Gerard Welling would tend to suggest there is scope for some investigation (and or improvement) on what you have given.

Not easy to cure the Alapin, but of course you can try. 7...Nge7 was my latest attempt, the line 7...d5 has other problems. Gerard's articles are great, because he considers many original analyses by Alapin. Very motivating for anyone with an interest in chess history. I have also studied the "large Alapin" 3...a6 4.Ba4 Bb4" and the "extra large Alapin XL" 3...a6 4.Ba4 b5 5.Bb3 Bb4!?, the topic is really too "large" for a debate on chesspub.  Smiley 

Edit: The sentence about 7...d5 was nonsense.
« Last Edit: 08/04/12 at 07:33:34 by Stefan Buecker »  
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Re: Spanish repertoire
Reply #418 - 08/03/12 at 00:46:12
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Ametanoitos wrote on 08/02/12 at 00:46:19:
Oh, no! Not again!  Tongue

‘fraid so  Cheesy

Stefan Buecker wrote on 08/02/12 at 08:28:03:
Hadron wrote on 08/01/12 at 22:52:42:
Really? Alapin's Attack is perfectly playable.

See reply #267.

You mean…

Stefan Buecker wrote on 10/24/11 at 19:18:12:

1.e4 e5 2.Nf3 Nc6 3.Bb5 Bb4 4.c3 Ba5 5.Qa4 Bb6 6.d4 exd4 7.cxd4 Nge7 8.d5 Nb8 9.Bf4! is +/-. Thus 3...Rb8 must be preferred, again.

I am sure you are right….although two articles I have by Gerard Welling would tend to suggest there is scope for some investigation (and or improvement) on what you have given.
  

I'm reminded again of something Short wrote recently, approximately "The biggest fallacy in chess is the quasi-religious belief in the primacy of the opening."
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Re: Spanish repertoire
Reply #417 - 08/02/12 at 18:55:02
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Stefan Buecker wrote on 08/02/12 at 08:28:03:
Ametanoitos, your Marshall recommendation is excellent. Of course a draw should still be possible, but it is a hard nut. 

Silicon believes it can hold the draw. But it is painful to watch, and I think in practice White should just be fine. 

  
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Re: Spanish repertoire
Reply #416 - 08/02/12 at 08:28:03
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Hadron wrote on 08/01/12 at 22:52:42:
Really? Alapin's Attack is perfectly playable.

See reply #267.

Ametanoitos, your Marshall recommendation is excellent. Of course a draw should still be possible, but it is a hard nut.
  
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Re: Spanish repertoire
Reply #415 - 08/02/12 at 00:46:19
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Oh, no! Not again!  Tongue
  
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Re: Spanish repertoire
Reply #414 - 08/01/12 at 22:52:42
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Stefan Buecker wrote on 09/23/11 at 18:20:25:
Stefan Buecker wrote on 07/24/11 at 20:16:20:
Göran wrote on 07/24/11 at 19:53:25:
What do you think about 3...Bb4

Discussed in Bernhard Lach: Spanisch - Die Alapin-Variante 1.e4 e5 2.Sf3 Sc6 3.Lb5 Lb4! from 1995

Slightly worse than 3...Rb8.

I have changed my mind. 3...Bb4 seems at least as good as 3...Rb8.

Really? Alapin's Attack is perfectly playable.
  

I'm reminded again of something Short wrote recently, approximately "The biggest fallacy in chess is the quasi-religious belief in the primacy of the opening."
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Re: Spanish repertoire
Reply #413 - 08/01/12 at 17:04:31
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Fllg wrote on 08/01/12 at 16:33:34:
Vass wrote on 08/01/12 at 15:45:38:
So, let's go to the next Marshall line!  Roll Eyes


Actually I agree with this. For the purpose of this thread it doesn´t make so much sense trying to analyse anything until a definite conclusion can be made.

15.Re4 g5 16.Qf1 looks like a decent choice for White and it´s fair to conclude it is somewhere between += and =.

The next line of interest to me is 8.c3 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 Bb7 instead of 11... c6.

Then critical looks 12.Qf3 Bd6 13.Bxd5 (not 13.Rxd5? Re8!) c6 14.Re2 cxd5 15.d4 Qc7 16.g3, but despite the good practical results for White Black seems to have decent play with 16... Rae8 17.Nd2 b4 18.cxb4 Qc2 as in Anand-Short, Manila 1992.

So probably 12.d4 should be played when both 12... Qd7 and 12... Bf6 are good moves to my limited knowledge. I haven´t looked any further yet.

Is there a way to a slight advantage for White?


I hope so! Though with some risk white has to take..  Wink



14.Na3!? is the move I lay upon in my main line.  Cheesy
  
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Re: Spanish repertoire
Reply #412 - 08/01/12 at 16:33:34
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Vass wrote on 08/01/12 at 15:45:38:
So, let's go to the next Marshall line!  Roll Eyes


Actually I agree with this. For the purpose of this thread it doesn´t make so much sense trying to analyse anything until a definite conclusion can be made.

15.Re4 g5 16.Qf1 looks like a decent choice for White and it´s fair to conclude it is somewhere between += and =.

The next line of interest to me is 8.c3 d5 9.exd5 Nxd5 10.Nxe5 Nxe5 11.Rxe5 Bb7 instead of 11... c6.

Then critical looks 12.Qf3 Bd6 13.Bxd5 (not 13.Rxd5? Re8!) c6 14.Re2 cxd5 15.d4 Qc7 16.g3, but despite the good practical results for White Black seems to have decent play with 16... Rae8 17.Nd2 b4 18.cxb4 Qc2 as in Anand-Short, Manila 1992.

So probably 12.d4 should be played when both 12... Qd7 and 12... Bf6 are good moves to my limited knowledge. I haven´t looked any further yet.

Is there a way to a slight advantage for White?

  
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Re: Spanish repertoire
Reply #411 - 08/01/12 at 15:45:38
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Ametanoitos wrote on 08/01/12 at 13:11:58:
So, everybody agreed to start with Marshall, but now that something challenging was presented we have silence? (except of course from Fllg's helpfull comments)
Smiley

All I can say is that this line of yours is good for our Spanish repertoire.  Cool
Of course, I can oppose to you and enter into a long analysis after your last move of the line.. But it would be a waste of time to try to convince you that black can draw with fine play. After all, our main point is to create a repertoire for white trying to achieve at least +=/=..  Wink
So, let's go to the next Marshall line!  Roll Eyes
  
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Re: Spanish repertoire
Reply #410 - 08/01/12 at 13:11:58
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So, everybody agreed to start with Marshall, but now that something challenging was presented we have silence? (except of course from Fllg's helpfull comments)
Smiley
  
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Re: Spanish repertoire
Reply #409 - 07/29/12 at 09:28:05
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Honestly I would find it amazing if White can leave the development of his queenside aside with 19.a4 without Black at least being able to generate enough counterplay.

There is a lot to explore here and as you observed only deep analysis will allow a reasonable assessment. I wonder if a top practitioner of the Marshall like e.g. Peter Leko already has a solution for this on is PC.

In your line after 23.Qxc1 Bf4 doesn´t look so clear to me and a move like 19... f5 also has to be analysed despite the initial bad assessment of the computer.
  
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Re: Spanish repertoire
Reply #408 - 07/28/12 at 22:16:00
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16. Qf1 Qxf1+ 17. Kxf1 Bf5 18. Nd2 Rad8 19. f3 Bxe4 20. fxe4 Nc7 21. a4! is Vigorito's main line and this is better for White. You can call it unclear, and definately in practice all 3 results are possible in sub-GM level, but i cannot but feel more comfortable with White.

After 17.f3 Bh3 18.Qf2 Qg6!?N i cannot disagree with your (excellent as it seems) "human eye" and indeed the variation you give is promising for Black (i think). Without deep analysis i cannot say something with confidence, but when i reached this position after inserting the moves in my PC, i tried the move 19.a4. I thought that Black threatens nothing at present and i don't really know if i need the Knight at d2 yet. Maybe Re2+Bc2 is an idea, i don't know. In any case Houdini gave 19...b4 20.c4 and now i investigated 20...Nf4 a bit. After some trial and error, i found that 21.c5! Nd3 22.Qc2 Nxc1 23.Qxc1 is in White's favour. So, yes, sorry if i underestimated the 17...Bh3 move but still i haven't seen any problems for White.

  
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Re: Spanish repertoire
Reply #407 - 07/28/12 at 21:03:35
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Ametanoitos wrote on 07/28/12 at 20:29:48:
-> 17.f3 Bh3 18.Qf2 is +/=


Then something like 18... Qg6 19.Nd2 f5 20.Re1 Rae8 21.Nf1 Rxe1 22.Qxe1 f4 seems to give Black reasonable play, at least to my human eye.

Ametanoitos wrote on 07/28/12 at 20:29:48:
As for 16...Qxf1 i always thought that it was considered "+/=" anyway. Anyone else has a different opinion?


You have cited Vigorito before and he concludes that it leads to an unclear endgame.
  
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Re: Spanish repertoire
Reply #406 - 07/28/12 at 20:29:48
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-> 17.f3 Bh3 18.Qf2 is +/=

-> 16...Qh6?! was Pavlovic's recommendation which is met strongly by 17.Re1! Kh8 (given by Pavlovic) 18.Bxd5! (18.c4 is good as well) 18...cxd5 19.Qg2 Bb7 (and not 19...Be6 because of 20.h4! After 19...Bb7 20.h4?! is met by 20...Rae8! with enough play for Black, i think) 20.Nd2 f5 21.Nf3 f4 and now 22.Bd2 is the simplest with an undisputed advantage for White.

Note that 16...Qh5 17.Re1? is bad due to 17...Bh3! but after 16...Qh6?! 17.Re1 Bh3? is met by 18.Bxg5!

As for 16...Qxf1 i always thought that it was considered "+/=" anyway. Anyone else has a different opinion? 

Time to move on?  Wink
  
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Re: Spanish repertoire
Reply #405 - 07/28/12 at 14:52:30
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Even if the end position of your line is drawn with best play it´s certainly not attractive to play.

Perhaps 17.f3 Bh3 is worth a further look?

Ametanoitos wrote on 07/28/12 at 12:13:29:

Shall we go now to another variation? (which i may be able to spell it correctly this time?)  Grin


Before that we have to find something convincing against 16... Qxf1+ and 16... Qh6 as well.  Smiley

Then there are also rarer moves like 11... Bb7 instead of  the main move 11... c6 which also belongs to the Marshall Attack and so on and so on...  Cheesy
  
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Re: Spanish repertoire
Reply #404 - 07/28/12 at 12:13:29
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OK, you force me to take out the "big gun"! The last variation i showed was the one that made me stay away from the Marshall Gambit when i studied it from Brunello's and Vigorito's books. The one i'll present you now is what i believe to be a serious try for the advantage for White. Gustafsson misses a move order trick, so don't go to him for help. 



I know, i know....White is better but does he have realistic winning chances? I think yes, he does. 

Shall we go now to another variation? (which i may be able to spell it correctly this time?)  Grin

PS
@Tony, Stefan: Thank you for saving my time by showing a good way against this Steiner line!
  
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Re: Spanish repertoire
Reply #403 - 07/28/12 at 06:27:22
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TonyRo wrote on 07/27/12 at 13:12:16:
As far as refuting the Steiner goes, I propose we base it off of Nakamura's convincing win over Short in London 2010, utilizing the under-promoted 11.g3. The only database I have access to at work has White scoring 100% after 11.g3 in a small number of games. The Naka game is below: [...]

I agree that this is good for White. Silly from that Bücker guy not to consider the move order 11.g3, which transposes to the old main line 11.d4, but avoids 11.d4 fxg2!. So I admit that the Steiner won't be the problem. 

Regarding "Marshal", it is known that Frank Marshall himself had serious issues with orthography...
  
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Re: Spanish repertoire
Reply #402 - 07/28/12 at 00:27:41
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That's right. The whole question is how to win as White,which appears to be difficult with expert defense.
  

The Great Oz has spoken!
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Re: Spanish repertoire
Reply #401 - 07/28/12 at 00:02:05
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Gustafsson gives both 20.Nf1 Bf5 21.Qd2 Bh3! and 20.Qf1 Bh3! as satisfactory for Black.

Asking for winning chances might be a bit too much. It´s not new that the Marshall is mainly a drawing weapon on higher levels and there are some lines where Black invites a repetition.
  
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Re: Spanish repertoire
Reply #400 - 07/27/12 at 21:18:16
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OK, i have a problem with the MG. I was corrected by Markovic not long ago again!  Smiley

For starters, look at this line that i found while reading Vigorito's great "Understanding the Marschall Attack". I think that this is the traditional Main Line, right? I'd never like to be in Black's shoes. Where are his winning chances? Objectively it must be a draw, but i assure you it is not an easy one. Some time ago i played lots of training games in this line with Black and i drew about 65-60% and lost 35-40% of those games. We can look at Black's modern alternatives if you have nothing to add here.



Also 20.Qf1 seems promising to me. I really cannot decide which move is more unpleasant for Black
  
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Re: Spanish repertoire
Reply #399 - 07/27/12 at 17:38:39
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ghenghisclown wrote on 07/27/12 at 16:56:53:
As an American, I grant Ametanoitos special dispensation to spell it anyway he wants.


Agree - if he's taking time out of his busy schedule to share some ideas, then he call me 'Tony Rototiller" as well.

Grin
  
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Re: Spanish repertoire
Reply #398 - 07/27/12 at 16:56:53
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As an American, I grant Ametanoitos special dispensation to spell it anyway he wants.
  

"Experience is a dim lamp, which only lights the one who bears it."
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Re: Spanish repertoire
Reply #397 - 07/27/12 at 13:30:05
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Ametanoitos wrote on 07/27/12 at 13:05:02:
Everybody agrees to start a Marshal discussion?

Only if we agree that the spelling is Marshall.
  
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Re: Spanish repertoire
Reply #396 - 07/27/12 at 13:12:16
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Let's do it. 

As far as refuting the Steiner goes, I propose we base it off of Nakamura's convincing win over Short in London 2010, utilizing the under-promoted 11.g3. The only database I have access to at work has White scoring 100% after 11.g3 in a small number of games. The Naka game is below:



Black can also try 13...Qd6, though I'd be confident handling White after 14.Qd3 Qxc6 15.Nd2, when Black can't avoid losing the f3-pawn, with what looks to be a much improved version of normal Marshall attacks to me - the structure is the same, but Black has way less pressure. My computer thinks 15...Bf8 16.Bxf6 Qxf6 17.Bd5 Rad8 18.Bxf3 Rxe1+ 19.Rxe1 Be6 20.Qe3 is best play, but this looks strictly better for White to me, somewhere between += and ± to me.
  
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Re: Spanish repertoire
Reply #395 - 07/27/12 at 13:05:02
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I have an interesting idea to share with you against the Marshal when i find my files (soon....). I'll also see what i can do for the Steiner line. 

Everybody agrees to start a Marshal discussion?
  
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Re: Spanish repertoire
Reply #394 - 07/27/12 at 12:20:43
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I had written for ChessCafe on the Steiner Variation of the Marshall Attack, where Black sacrifices a second pawn and did well. I am not aware that somebody had refuted it. These two pdf documents are named kaiss11.pdf and kaiss12.pdf and can easily be found on the web. It would be interesting for me if somebody could find a plus for White.
  
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Re: Spanish repertoire
Reply #393 - 07/27/12 at 11:37:21
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Bibs wrote on 07/27/12 at 00:26:20:
ghenghisclown wrote on 07/26/12 at 23:31:10:
Stefan Buecker wrote on 07/26/12 at 22:06:41:

In my view all these main systems are far out of reach of this Forum.


No, they're not. If we can do gazillions of pages on gambits that nobody plays in real life, there's room for anything.


Yes, absolutely agree. 
Not really an efficient use of human capital to be spending so much time deciding whether certain variations are either 'inadvisable' or 'rubbish'. 
Focus, focus.


Yes, I'd be more interested if we were trying to find something against the Marshall, even if it turned out to be fruitless and we had to move on to an Anti-Marshall.
  
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Re: Spanish repertoire
Reply #392 - 07/27/12 at 09:58:34
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Bibs wrote on 07/27/12 at 00:26:20:
ghenghisclown wrote on 07/26/12 at 23:31:10:
Stefan Buecker wrote on 07/26/12 at 22:06:41:

In my view all these main systems are far out of reach of this Forum.


No, they're not. If we can do gazillions of pages on gambits that nobody plays in real life, there's room for anything.


Yes, absolutely agree. 
Not really an efficient use of human capital to be spending so much time deciding whether certain variations are either 'inadvisable' or 'rubbish'. 
Focus, focus.

My main point was that there is nobody here to do the work on the Spanish main lines. It is less surprising that people help to study 3...f5 or 3...Bc5, perhaps they play it with Black. But most amateurs (and their opponents!) avoid the main lines. As I said, my personal focus is on 4...Nf6 5.Bxc6 which gives White a plus. I don't think that other moves are better. But if you, Bibs, step forward to do the heavy-lifting, it is of course highly welcome, and I won't get in the way.
  
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Re: Spanish repertoire
Reply #391 - 07/27/12 at 07:40:01
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Stefan Buecker wrote on 07/26/12 at 22:06:41:
Ametanoitos wrote on 07/26/12 at 21:48:10:
I think that is almost all the major main lines Black faces problems today, so it is not difficult to form a practical yet ambitious reperoire. In my opinion, we should first try to propose interesting things in the main lines, starting from the most popular defences and then move on to the side-lines.

Black has problems in the Marshall Gambit? I didn't think so.


Problem solved - let's start with the Marshall.
  
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Re: Spanish repertoire
Reply #390 - 07/27/12 at 00:26:20
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ghenghisclown wrote on 07/26/12 at 23:31:10:
Stefan Buecker wrote on 07/26/12 at 22:06:41:

In my view all these main systems are far out of reach of this Forum.


No, they're not. If we can do gazillions of pages on gambits that nobody plays in real life, there's room for anything.


Yes, absolutely agree. 
Not really an efficient use of human capital to be spending so much time deciding whether certain variations are either 'inadvisable' or 'rubbish'. 
Focus, focus.
  
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Re: Spanish repertoire
Reply #389 - 07/26/12 at 23:31:10
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Stefan Buecker wrote on 07/26/12 at 22:06:41:

In my view all these main systems are far out of reach of this Forum.


No, they're not. If we can do gazillions of pages on gambits that nobody plays in real life, there's room for anything.
  

"Experience is a dim lamp, which only lights the one who bears it."
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Re: Spanish repertoire
Reply #388 - 07/26/12 at 22:06:41
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Ametanoitos wrote on 07/26/12 at 21:48:10:
I think that is almost all the major main lines Black faces problems today, so it is not difficult to form a practical yet ambitious reperoire. In my opinion, we should first try to propose interesting things in the main lines, starting from the most popular defences and then move on to the side-lines.

Black has problems in the Marshall Gambit? I didn't think so. - Maybe Markovich can propose something. In my view all these main systems are far out of reach of this Forum. Could the Duras System (c2-c4) be an idea?
  
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Re: Spanish repertoire
Reply #387 - 07/26/12 at 21:48:10
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I think that is almost all the major main lines Black faces problems today, so it is not difficult to form a practical yet ambitious reperoire. In my opinion, we should first try to propose interesting things in the main lines, starting from the most popular defences and then move on to the side-lines.
  
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Re: Spanish repertoire
Reply #386 - 07/26/12 at 14:45:49
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TN wrote on 07/26/12 at 11:05:29:
Fair enough. Regarding 4...Nf6 5.Bxc6 I always thought ...dxc6/...Bd6/...0-0/...Nd7 in some order was completely equal. Also it's one of those positional lines you mentioned. 

The Spanish is a more positional opening in most lines so I guess some coverage of such lines is not wholly avoidable. But you've contributed far more to the project than I have so I'm more than happy to follow your proposed direction.

I mentioned 4...Nf6 5.Bxc6 only as an example for quiet play, not as suitable for the repertoire. An ambitious, yet sharp line for White in the main Spanish is hard to find. Perhaps an early d2-d4, in Kurt Richter style. Or 4.Bc4! Tartakower.
  
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Re: Spanish repertoire
Reply #385 - 07/26/12 at 11:05:29
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Fair enough. Regarding 4...Nf6 5.Bxc6 I always thought ...dxc6/...Bd6/...0-0/...Nd7 in some order was completely equal. Also it's one of those positional lines you mentioned. 

The Spanish is a more positional opening in most lines so I guess some coverage of such lines is not wholly avoidable. But you've contributed far more to the project than I have so I'm more than happy to follow your proposed direction.
  

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Re: Spanish repertoire
Reply #384 - 07/26/12 at 08:32:11
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TN wrote on 07/25/12 at 04:51:15:
I propose that we revitalise this project by trying to find an advantage for White in the variation 3...a6 4.Ba4 Nf6 5.0-0 Be7 6.d3. There's no point of knowing how to meet all of Black's sidelines if you are clueless against the main line.

A discussion of quiet, positional lines probably won't produce many good ideas on chesspub. I have worked on 4...Nf6 5.Bxc6 and like White's chances. It is not exactly the mainline, but for most players this could be a valuable part of their repertoire. But I am less interested to discuss such a positional line on chesspub, because I fear that there wouldn't be much feedback. When I give away some of my analysis, I want something back - new ideas, refutations. People like to study sharp openings on their computer. It is just my personal observation, maybe I am wrong, but if you want a whole Spanish repertoire in this thread, I am skeptical how far you can get with main lines which happen daily in GM practice. What's the point, do you want to constantly upgrade it over the next years?

In the thread about the Fyfe Gambit someone wrote: 
Smyslov_Fan wrote on 07/26/12 at 05:26:12:
While we're analysing dead lines such as this, good players such as Anish Giri are analysing critical lines of the King's Indian and winning impressive games at Biel. The chess world is safe as long as we ignore critical lines in favor of openings such as this.

There is a reason why the King's Indian is less analyzed in Chesspub Forum than the King's Gambit. People own computers and understand that they can't find novelties of value in the King's Indian. You could probably nevertheless create a good thread on this topic, but where do you find the GM who is willing to do it for free? Even then the feedback may be disappointing. Again, I believe that the Forum is great to discuss sharp or controversial ideas. The place to look for subtle positional ideas is the excellent subscriber section.
« Last Edit: 07/26/12 at 14:46:44 by Stefan Buecker »  
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Re: Spanish repertoire
Reply #383 - 07/25/12 at 04:51:15
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I propose that we revitalise this project by trying to find an advantage for White in the variation 3...a6 4.Ba4 Nf6 5.0-0 Be7 6.d3. There's no point of knowing how to meet all of Black's sidelines if you are clueless against the main line.
  

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Re: Spanish repertoire
Reply #382 - 04/30/12 at 14:59:24
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Of course i was kidding about "that's easy". Kotronias in his book suggests at least 2 systems against the "Kramnik" line (or was it 3?. I only know that the g3 line is met by ...Rg8! and the Navara game PANFR mentioned in another thread refuting Kotronias' variation didn't follow actually Kotronias' suggestions). Shirov recommended the Bf4 line (instead of Kotronias' Bg5) and even though his analysis was not top notch i think that i gave 2 games that clearly demonstrate the problems Black may face in this line.
  
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Re: Spanish repertoire
Reply #381 - 04/30/12 at 14:14:35
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Ametanoitos wrote on 04/25/12 at 12:14:40:
That's easy!


Indeed. 1.d4 and the Wall-Y has been refuted.
BTW I do have the Shirov DVD, and it's the very first time that I've been informed that he has suggested anything at all in it.  Tongue
  
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Re: Spanish repertoire
Reply #380 - 04/26/12 at 08:24:02
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Ametanoitos wrote on 04/26/12 at 07:25:08:
About this line Kotronias has wrote extensively on his "Battle Manual". Also the line featuring in Kosintseva-Zhao Xue, 2011 and  Baiocchi (2457)-Kharlamov (2487), ICCF 2011 looks promising. I don't have the new CS book though (yet!), so if someone has it he could tell us if the author has a clear solution against this system (which by the way was recommended by Shirov)


I own his Battle Manual, but I'd heard that someone found a major improvement over his analysis a month or two after his book was published which just equalised for Black.
  

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Re: Spanish repertoire
Reply #379 - 04/26/12 at 07:25:08
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About this line Kotronias has wrote extensively on his "Battle Manual". Also the line featuring in Kosintseva-Zhao Xue, 2011 and  Baiocchi (2457)-Kharlamov (2487), ICCF 2011 looks promising. I don't have the new CS book though (yet!), so if someone has it he could tell us if the author has a clear solution against this system (which by the way was recommended by Shirov)
  
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Re: Spanish repertoire
Reply #378 - 04/25/12 at 15:11:33
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Ametanoitos wrote on 04/25/12 at 12:14:40:
That's easy!


Please continue, Aronian was on the worse side of a draw against Kramnik just then.
  

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Re: Spanish repertoire
Reply #377 - 04/25/12 at 12:14:40
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That's easy!
  
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Re: Spanish repertoire
Reply #376 - 04/25/12 at 11:39:02
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Let's beat the Wall-Y structure of 3...Nf6 4.0-0 Ne4.  Wink
  

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Re: Spanish repertoire
Reply #375 - 04/24/12 at 12:26:25
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Agreed!
Well, if we're not to dig a little deeper into the 4.d3 variation (though I agree with Markovich that 4.Nc3 has to be the move.. I just feel it!  Smiley  ), then we can assess this as +=/= and to move ahead with the next great Spanish line.
Any suggestions?..  Roll Eyes
  
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Re: Spanish repertoire
Reply #374 - 04/24/12 at 12:11:08
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Vass wrote on 04/24/12 at 11:34:21:
Yes, I agree - it's hard to assess which one is better.. And I'm not pretending my analysis to be especially good, but having spent more than an hour onto this position after 13...Be7!? I found that white has to play very carefully, while black's pieces are more active and the two black bishops can be deadly. If we're to find += for white here (though with an extra pawn) we'll have to sweat a little bit.  Embarrassed

Well, I did recognize that your analysis was fine, based on some real checking. The topical break c7-c5 appeared quite often on my board, too. It is true that White has to be very cautious. That's why I was optimistic at first, earlier in the thread. In your main line, by the way, a4-a3 would be an idea, since else White could stabilize his structure by means of a2-a3. But that's a minor point, I think. 

By the way, after 11...c5 12.Ng4 Qxe2+ 13.Kxe2, my line was 13...Bh4 14.g3 Be7, as already given by huggy, instead of the immediate 13...Be7. In some lines Black can profit from the weak square f3. Yet full equality I can't see.
  
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Re: Spanish repertoire
Reply #373 - 04/24/12 at 11:34:21
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Yes, I agree - it's hard to assess which one is better.. And I'm not pretending my analysis to be especially good, but having spent more than an hour onto this position after 13...Be7!? I found that white has to play very carefully, while black's pieces are more active and the two black bishops can be deadly. If we're to find += for white here (though with an extra pawn) we'll have to sweat a little bit.  Embarrassed
  
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Re: Spanish repertoire
Reply #372 - 04/24/12 at 11:12:41
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Vass wrote on 04/21/12 at 11:30:45:
Well, my researches bring me to conclusion that 11...c5 is inferior to 11...0-0 which is enough for equality, especially after 13...Be7!? with some good compensation for the pawn. The main line goes like this:

I am not sure that 11...c5 is worse than 11...0-0. In your main line, 14. Re1 is more flexible than 14.Be3. White has a lasting plus, no?
  
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Re: Spanish repertoire
Reply #371 - 04/21/12 at 16:44:33
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Thanks, Vass and Jon Tait.  Fascinating stuff altogether.  It suggests you could put a viable 1...e5 repertoire together based on the Schliemann with 5...Nf6 and 8...bxc6.

But I looked at Vass's analysis and I'm not sure just how convincing it is.  White can play a long time with that extra pawn, it would seem.
« Last Edit: 04/22/12 at 11:46:41 by Markovich »  

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Re: Spanish repertoire
Reply #370 - 04/21/12 at 11:30:45
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Well, my researches bring me to conclusion that 11...c5 is inferior to 11...0-0 which is enough for equality, especially after 13...Be7!? with some good compensation for the pawn. The main line goes like this:
  
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Re: Spanish repertoire
Reply #369 - 04/21/12 at 09:01:59
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Thank you very much, Jon, for posting these games - and in the first place for accepting the role as this thread's guinea pig! The valuable result confirms my impression that 9.Qxe5 is good only for equality. - Now I think that 9.Nxe5 must be White's best choice. I haven't found clear equalizing lines for Black.
  
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Re: Spanish repertoire
Reply #368 - 04/20/12 at 08:49:03
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Stefan Buecker wrote on 12/08/11 at 02:30:18:
1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6 Qxf6 7.Qe2 Be7 8.Bxc6 bxc6 9.Qxe5 d6 10.Qxf6 Bxf6 11.d3 0-0 12.Nd2


I tried this in three recent (2011/2012) ChessWorld games but didn't get anywhere:

  

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Re: Spanish repertoire
Reply #367 - 03/15/12 at 16:47:49
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Chessexplained wrote on 03/15/12 at 10:36:48:
I hope this post is not considered spamming as I just wanted to thank all contributors to this thread for compiling lots of useful information. I am currently putting together a black repertoire based on 1.e4 e5 for a video series targeted for mostly amateur players. I'll most likely go for 3... Bc5 in the Ruy and found the discussion here most helpful.


Alls I can say is, YAY Smiley...I recall Fischer liking Bc5 in the Ruy for Black...interesting. I'm even more interested in your Non-Lopez choices, especially the Pianissimo  (without asking you to go into too much detail here) setups. 
  

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Re: Spanish repertoire
Reply #366 - 03/15/12 at 10:36:48
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I hope this post is not considered spamming as I just wanted to thank all contributors to this thread for compiling lots of useful information. I am currently putting together a black repertoire based on 1.e4 e5 for a video series targeted for mostly amateur players. I'll most likely go for 3... Bc5 in the Ruy and found the discussion here most helpful.
  
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Re: Spanish repertoire
Reply #365 - 12/22/11 at 10:00:01
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Markovich wrote on 12/21/11 at 03:43:50:
Stefan Buecker wrote on 12/19/11 at 10:09:37:
Many thanks - a fine analysis.

Oh, come on Stefan. Surely you can overturn at least one of his conclusions.

9.Nxe5 Qe6 10.d4 was my main line, too. 10...Bf6 also looks best. 11.c3. Best. Now Huggy recommends 11...0-0 and gives 11...c5 as a sideline. My analysis went 11...c5, but right now I am too busy to check the details - I'll be back in a few days. 
  
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Re: Spanish repertoire
Reply #364 - 12/21/11 at 03:43:50
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Stefan Buecker wrote on 12/19/11 at 10:09:37:
Many thanks - a fine analysis.

Oh, come on Stefan. Surely you can overturn at least one of his conclusions.
  

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Re: Spanish repertoire
Reply #363 - 12/19/11 at 10:09:37
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Many thanks - a fine analysis.
  
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Re: Spanish repertoire
Reply #362 - 12/18/11 at 03:52:30
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Team,

Sorry for the delay in posting,  I've now returned home and attached for your reference the portion of my PGN file on 9. Nxe5 in the Nc3 line.  I started trying to write a post with an overview of my thoughts but realised there were too many thoughts to share and felt nervous that given my rating these detailed thoughts may not hold up terribly well.  Have a look through the file and perhaps we can discuss from there together Smiley   

CAVEATS
- I've kept in alot of the lines that I crossed during my original analysis and subsequently played through against or analysed with my laptop.  Apologies that it's fairly detailed, please let me know if it's not appropriate to include this level of detail in an uploaded file and I will remove accordingly.

- I've removed alot of my initial notes as they're a little embarassing.  I bounce between 2050-2100 and these middlegame/endgames are an opportunity for my game, therefore some of my assessments are potentially not correct.

- Based on point #2, my final assessment of equality in the resulting endgames may not be completely correct.  This is most likely in the decision I made for 16.. Bd6 in the 10. d4 line, hence I also provided another alternative I looked at in 16.. Bd6.  Very keen to hear the team's thoughts!

- I don't have Corrbase yet, relying only on MegaDB, Hiarcs book and an engine.  The move hasn't been played too often over the board, therefore it was often Hiarcs book that I would begin with and engine to follow when checking my thoughts from the board.

Overall Summary
1. Alot of my lines aim for a queenless middlegame where in black leverages his development and bishop pair to eventually either (a) recover material equality (b) trade off the dark squared bishop for White's knight and head for an opposite colored bishop endgame.

2. Most of the lines head into a queenless middlegame fairy early, with the exception of some lines beginning with 10. Qe3.  In this line, however, I believe black's generated play on the kingside can eventually force a queen swap and the resulting endgame looks equal.

3. The most challenging line for me was 10. d4, only played a couple times OTB.  The reason for this was the number of different positions that White head towards, with more straight forward play for black against the other move 10 choices by white.

4. 10. d3 has not been played previously in my database, however the engine through it up as an option while I was checking.  I haven't spent much time at all looking at this on a board but the engine was fairly optimistic in finding some early equality for black behind his superior development and piece activity.  Will look deeper!

Huggy
  
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Re: Spanish repertoire
Reply #361 - 12/18/11 at 02:53:48
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Stefan Buecker wrote on 12/17/11 at 08:13:55:
Markovich wrote on 12/16/11 at 19:15:01:

Edit: on second thought, while I agree that White is "better", I'm not sure that Black's draw will be very difficult after 19.f3 Bg6 20.Nb4 Nxb4 21.cxb4 d5.

I'd probably say the same about the last diagram position which I gave. "Probably a draw, but White has an extra pawn: +=" In comparison, your variation gives White more to hope for because of the possibility of establishing a passed pawn on the a-file. If all rooks were exchanged, Black might well be lost.


I understand about the a-pawn, but how dangerous it is, I'm not sure. Black also has his d-pawn, and the a-pawn may be blockaded.

You perhaps understand better than I the merits of these positions. To my no doubt limited understanding, the line I gave seems more hopeful for Black.
  

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Re: Spanish repertoire
Reply #360 - 12/17/11 at 08:13:55
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Markovich wrote on 12/16/11 at 19:15:01:

Edit: on second thought, while I agree that White is "better", I'm not sure that Black's draw will be very difficult after 19.f3 Bg6 20.Nb4 Nxb4 21.cxb4 d5.

I'd probably say the same about the last diagram position which I gave. "Probably a draw, but White has an extra pawn: +=" In comparison, your variation gives White more to hope for because of the possibility of establishing a passed pawn on the a-file. If all rooks were exchanged, Black might well be lost.
  
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Re: Spanish repertoire
Reply #359 - 12/16/11 at 19:15:01
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That's true.  The line looks promising for White, I must agree.

Edit: on second thought, while I agree that White is "better", I'm not sure that Black's draw will be very difficult after 19.f3 Bg6 20.Nb4 Nxb4 21.cxb4 d5.
« Last Edit: 12/17/11 at 03:26:53 by Markovich »  

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Re: Spanish repertoire
Reply #358 - 12/16/11 at 05:09:11
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Markovich wrote on 12/16/11 at 04:22:43:
15...Nd5 may be stronger than 15...exd5. Then 16.exd6 cxd6 17.Qxe8 Raxe8 18.Nxb6 axb6 19.c4 Be2 20.cxd5 Bxd3 21.Rd1 Be2 22.Rd2 c5 23.b3 Ba6 24.Bb2 Re7 and the e-file and weak d-pawn may offer Black some comp.

White keeps an edge after 19.f3 Bf7 20.Rd1 b5 21.Kf2. In some lines a passed pawn may arise on the a-file.
  
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Re: Spanish repertoire
Reply #357 - 12/16/11 at 04:22:43
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15...Nd5 may be stronger than 15...exd5. Then 16.exd6 cxd6 17.Qxe8 Raxe8 18.Nxb6 axb6 19.c4 Be2 20.cxd5 Bxd3 21.Rd1 Be2 22.Rd2 c5 23.b3 Ba6 24.Bb2 Re7 and the e-file and weak d-pawn may offer Black some comp.
  

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Re: Spanish repertoire
Reply #356 - 12/15/11 at 07:59:50
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Alternatively, after 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. d3 fxe4 5. dxe4 Nf6 6. 0-0 Bc5 7. Bxc6 bxc6 8.Nxe5 0-0 9. Nc3 d6 10. Na4 Qe8 11. Nd3 Bg4 12. Qe1 Bd4 13. c3 Bb6 White can play 14.h3 (instead of 14.Nxb6 followed by f3) 14...Bh5 (if 14...Be6, White now has the simple 15.b3) 15.e5!? dxe5 16.Nxb6 cxb6 17.Nxe5 Nd7 18.Nxd7 Qxd7 19.Qd2 and White has a sound extra pawn. Yes, there are still the opposite bishops, but += it certainly is. 

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Re: Spanish repertoire
Reply #355 - 12/15/11 at 07:21:35
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Quote:
@Matemax: In your analysis, maybe 23. Qc2 (instead of 23.Qe3) is slightly better, intending 23...Nc5 24.Rad1 Nd3 25.Re2 followed by Red2 and an eventual Rxd3. White has two pawns for the exchange, apparently Black won't get open files for his rooks. I admit that White's edge is small, but wouldn't this be sufficient for our repertoire?


That is a good practical try for White. But if he wants to win he has to push his pawns and will open lines which will give Black counterplay. I think the position is therefore dynamically balanced after your exchange sac. 

Btw - what can happen in such positions (2R vs RB) was shown impressively in the game McShane-Kramnik, London recently
  
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Re: Spanish repertoire
Reply #354 - 12/14/11 at 21:45:40
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Markovich wrote on 12/14/11 at 15:14:39:
Stefan, do you have some secrets you want to keep about 9.Nxe5 after 4.Nc3?

The best line for Black against 9.Nxe5 isn't obvious. Now that Huggy is back, let's see at first what he has found.  

@Matemax: In your analysis, maybe 23. Qc2 (instead of 23.Qe3) is slightly better, intending 23...Nc5 24.Rad1 Nd3 25.Re2 followed by Red2 and an eventual Rxd3. White has two pawns for the exchange, apparently Black won't get open files for his rooks. I admit that White's edge is small, but wouldn't this be sufficient for our repertoire? 

@Markovich: 17...Qf7 - yes, maybe. I had also looked at 17...Qe6 18.Re1 Nd7 19.Be3 Ne5 20.Nxe5 dxe5, when Black has some control over the d-file. But again White keeps fine options to gradually improve his position. It isn't clear that Black has full compensation.
  
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Re: Spanish repertoire
Reply #353 - 12/14/11 at 15:45:32
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Markovich wrote on 12/14/11 at 15:14:39:
Stefan Buecker wrote on 12/14/11 at 12:32:54:
PANFR wrote on 11/30/11 at 10:03:46:

Regarding 9.Nxe5- isn't Black supposed to be OK after 9...Qe6? Most top level games after it end in a draw, most recently Bologan- Svjaginsev.

I agree that 9...Qe6 is best. Or do you think 9...0-0 is better, Huggy?

Regarding the line 4.d3 ... 10.Na4! which I didn't like for Black (see two posts ago), does anybody see an improvement? If not, this may well become our repertoire suggestion against the Jaenisch. If it is true that 4.Nc3 is equal (which I still believe), there may be nothing better.


In Matei - Noble, 17...Qf7 seems worthy of consideration.  From the look of it however, I would rather be White.

Stefan, do you have some secrets you want to keep about 9.Nxe5 after 4.Nc3?  I don't think Huggy is coming back or even is reading your posts, so it seems pointless to call upon him any more.


Hey guys,  sorry I've been incredibly inactive for a little while due to frequent travel overseas with work.  Great to see the discussion going on and I have some catching up to do on the Qxe5 lines!

I don't have my personal laptop with my files at the moment but distinctly remember that 9.. Qe6 was the line I felt best led to equality.  I'll be back home in a few days and make sure to post up my notes, would you prefer a toplines overview of the lines in text format or a PGN file?

A caveat ahead of posting my analysis, all of my work on the Jaenisch was done a month or so ago as part of a Quenless Middle game study - I don't actually play it (yet!).  The Qxe5 and Nxe5 provided some excellent positions for me for the purposes of this activity, especially helpful for testing out the value of piece activity vs. a slight material disadvantage.  I've disaster checked my main lines with a computer but please don't expect IdEA level analysis or "Chess Truth".  The whole exercise for me has been sitting down at a board first, computer second, to try and train my brain in these middle game situations Smiley

Huggy
  
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Re: Spanish repertoire
Reply #352 - 12/14/11 at 15:14:39
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Stefan Buecker wrote on 12/14/11 at 12:32:54:
PANFR wrote on 11/30/11 at 10:03:46:

Regarding 9.Nxe5- isn't Black supposed to be OK after 9...Qe6? Most top level games after it end in a draw, most recently Bologan- Svjaginsev.

I agree that 9...Qe6 is best. Or do you think 9...0-0 is better, Huggy?

Regarding the line 4.d3 ... 10.Na4! which I didn't like for Black (see two posts ago), does anybody see an improvement? If not, this may well become our repertoire suggestion against the Jaenisch. If it is true that 4.Nc3 is equal (which I still believe), there may be nothing better.


In Matei - Noble, 17...Qf7 seems worthy of consideration.  From the look of it however, I would rather be White.

Stefan, do you have some secrets you want to keep about 9.Nxe5 after 4.Nc3?  I don't think Huggy is coming back or even is reading your posts, so it seems pointless to call upon him any more.
  

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Re: Spanish repertoire
Reply #351 - 12/14/11 at 14:31:02
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Stefan Buecker wrote on 12/14/11 at 12:32:54:
PANFR wrote on 11/30/11 at 10:03:46:

Regarding 9.Nxe5- isn't Black supposed to be OK after 9...Qe6? Most top level games after it end in a draw, most recently Bologan- Svjaginsev.

I agree that 9...Qe6 is best. Or do you think 9...0-0 is better, Huggy?

Regarding the line 4.d3 ... 10.Na4! which I didn't like for Black (see two posts ago), does anybody see an improvement? If not, this may well become our repertoire suggestion against the Jaenisch. If it is true that 4.Nc3 is equal (which I still believe), there may be nothing better.



  
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Re: Spanish repertoire
Reply #350 - 12/14/11 at 12:32:54
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PANFR wrote on 11/30/11 at 10:03:46:

Regarding 9.Nxe5- isn't Black supposed to be OK after 9...Qe6? Most top level games after it end in a draw, most recently Bologan- Svjaginsev.

I agree that 9...Qe6 is best. Or do you think 9...0-0 is better, Huggy?

Regarding the line 4.d3 ... 10.Na4! which I didn't like for Black (see two posts ago), does anybody see an improvement? If not, this may well become our repertoire suggestion against the Jaenisch. If it is true that 4.Nc3 is equal (which I still believe), there may be nothing better.
  
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Re: Spanish repertoire
Reply #349 - 12/09/11 at 01:52:57
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His post was obnoxious, but I think he's right that 9...Qe8 or 9...Kh8 are improvements over 9...a6, given that after other moves White often plays Bc4 and a3 anyway. 

In spite of Black's superb score from the position I still think White's position is easier to play. I don't know if it's enough for an objective edge.
  

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Re: Spanish repertoire
Reply #348 - 12/08/11 at 23:13:05
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I am not so worried about 6.Be3 Nxe4, it looks complicated, but not necessarily bad for Black. However, the following correspondence game seems more troubling. In spite of its peaceful outcome I don't like it. Instead of 19.Nb4?, White could play 19.Kh1 and remain a pawn ahead. - True, 10. Na4 is rare (it seems the idea was never repeated), and there is some compensation, but probably not enough. Am I overlooking something? 

  
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Re: Spanish repertoire
Reply #347 - 12/08/11 at 02:46:46
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I deleted some obnoxious posts. People, post in a friendly vein or not at all. I won't countenance anyone's denegration of somebody else's ideas. Just talk chess, and do it politely.
  

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Re: Spanish repertoire
Reply #346 - 12/08/11 at 02:30:18
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Still busy boxing books. But:

1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6 Qxf6 7.Qe2 Be7 8.Bxc6 bxc6 9.Qxe5 d6 10.Qxf6 Bxf6 11.d3 0-0 12.Nd2 d5 13.f3. 

"Maybe best", as I said above - but Black equalizes. 

13...c5. 13...a5!?. 14.Kd1 Re8. Or 14...Be5 15.Rb1 Bd6. 15.Re1

If 15.Rb1 Be5 16.b3 Bd6 17.Nf1 (17.Ba3 a5) 17...Rb8 18.Ng3 c4 =.

15...Rxe1+ 16.Kxe1 Bd7 17.Nf1 Rb8

Less clear: 17...Re8+ 18.Kd1 Bb5 19.a4! Ba6 (19...Bd7 20.Rb1) 20.Ne3 c6 23.Ng4.

18.Rb1 c4 19.dxc4 dxc4

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *

Black threatens Bf5, and neither 20.b3 Bf5 21.Ne3 Bg6 nor 20.Ne3 c3 21.b3 Re8! helps. 

20.Ng3 Be5 21.Be3 Bxb2 22.Ne2 c3 23.Bd4 Bf5 24.Bxc3 Bxc3+ 25.Nxc3 Rxb1+ 26.Nxb1 Bxc2 27.Nc3 Bd3 =.
  
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Re: Spanish repertoire
Reply #345 - 12/04/11 at 20:30:46
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PANFR wrote on 12/04/11 at 12:03:43:
White must somehow hinder Black from castling into safety, because after that he has nothing.

White has the more active black-squared Bishop.

PANFR wrote on 12/04/11 at 12:03:43:
6.Be3 d6 7.Nc3 Be7 8.Qd3 0-0!? (maybe also 8...Bg4 9.Nd2 Be6) 9.Qc4+ Kh8 10.Bxc6+ bc6 11.Qxc6 Rb8 and White would like to have his bishop still on c1.

This is stereotypal play by White. Not because the Qd1-d3-c4+ manoeuvre is dangerous against ...Bc5 it is also best against ...Be7. Sample lines:
6.Be3 d6 7.Nc3 Be7 8.O-O O-O 9.h3 a6 10.Bc4+ Kh8 11.a3 += or 8...Bg4 9.h3 Bh5 10.Be2 h6 (O-O?! 11.Ng5 or Qd7?! 11.Nxe5) 11.Nh4 (11.Nxe5!?) Bf7 12.Nf5 +=.
This is always the problem if Black keeps the Bishop at home - lack of counterplay.

6.Be3 Ng4 is too slow indeed - just 7.O-O. So everything regarding 6.Be3 depends on Nxe4.
  

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Re: Spanish repertoire
Reply #344 - 12/04/11 at 12:03:43
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MNb wrote on 12/04/11 at 11:31:05:
Yeah, but that pointless Be3 will be easier to activate than its counterpart on f8.

A bishop behind the d6 pawn does not mean something in itself: it's just another way to play the position.
White must somehow hinder Black from castling into safety, because after that he has nothing. The two established ways to do that are either Qd1-d3 or Bb5-c4, but both of them do not seem effective because of the bishop's placement on e3. We probably need some games before we decide if 6.Be3 is a good move, or just a bluff.
Just a sample line which came off my head: 6.Be3 d6 7.Nc3 Be7 8.Qd3 0-0!? (maybe also 8...Bg4 9.Nd2 Be6) 9.Qc4+ Kh8 10.Bxc6+ bc6 11.Qxc6 Rb8 and White would like to have his bishop still on c1.
  
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Re: Spanish repertoire
Reply #343 - 12/04/11 at 11:31:05
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Yeah, but that pointless Be3 will be easier to activate than its counterpart on f8.
  

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Re: Spanish repertoire
Reply #342 - 12/04/11 at 06:28:10
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6...Nxe4 has been played recently (Black won)- still many things to consider. 
I don't like 6...Ng4, Black is falling too far behind in development. 
But what's wrong with the classical approach 6...d6? Black is very solid, and the bishop placement on e3 is rather pointless.
  
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Re: Spanish repertoire
Reply #341 - 12/03/11 at 20:15:25
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Not too hasty. You will also have to show (though that might be very possible) that White has an edge after 4.d3 Nf6 5.exf5 or 5.Be3. After other moves Black still can play 5...fxe4.
And how about 4.d3 fxe4 5.dxe4 Nf6 6.Be3 Ng4 ?
  

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Re: Spanish repertoire
Reply #340 - 12/03/11 at 17:28:35
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I think that a very promising line is the recent idea by Gashimov: 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.d3 (if it gives an edge, why not?) 4...fxe4 5.dxe4 Nf6 6.Be3!? It seems like a practical choice for a repertoire and if 6...Nxe4 is bad (seems like the only reasonable move) then we have it!
  
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Re: Spanish repertoire
Reply #339 - 12/03/11 at 12:09:19
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Have you looked at 6.Qe2 already?
Before those people start reconsidering they (you?) could look at Van der Wiel-Timmermans, Hilversum 1983 (11.Bf4 c6 12.Nxe5 fxe5 13.Bxe5) and Meier-De Jong, Antwerpen 2010.
  

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Re: Spanish repertoire
Reply #338 - 12/02/11 at 23:00:18
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At any rate, I would prefer that we knocked off 9.Nxe5 before we left the Jaenisch.  We have yet to find a convincing line for White; and if this defense is God's gift to Black, a lot of people are going to have to reconsider their use of 1.e4.
  

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Re: Spanish repertoire
Reply #337 - 12/02/11 at 11:21:25
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Markovich wrote on 11/30/11 at 01:58:05:
But seriously, tbis isn't about huggy, but about what Chess Truth is after 9.Nxe5.

But it seems that Huggy has Chess Truth on 9.Nxe5. Trust him. If it doesn't work, I'll give my own CT.
  
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Re: Spanish repertoire
Reply #336 - 11/30/11 at 17:43:12
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Ametanoitos wrote on 11/30/11 at 09:02:25:
My suggestion against 3...Bc5 is this:

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. O-O O-O 6. d4 Bb6 7. Bg5 h6 8. Bh4 d6 9. Bxc6 

(Also 9. Qd3 is between +/= and = but i wouldn't base my Black repertoire in that position. For White i would be happy to just know this and move on to study more critical lines. I would be happy with my +2=8-0 score in 10 games! But fortunately another simple line exists) 

9... bxc6 10. dxe5! dxe5 11. Nbd2! 

I extensively practiced that line for Black's sife 4 years ago with bad results. I analysed it for many days. Today, with more modern software the conclusion is the same. White has a small edge which is enough to satisfy me from the theoretical perspective. In practice some care is needed but if you study a bit further those positions you'll score massively with White. For example 11...Re8 12.Qc2! with the idea c4-Nb3-c5 is just +/- and 11...Bg4 12.Qa4! is also strong. 

My source on this line is markovich's hard chess series on the classical defence, where black was considered ok after this c4/Nb3/Nc4 plan. What's your improvement on the line he gives? No doubt in 11 years theory must have moved on quite a bit  Tongue
  
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Re: Spanish repertoire
Reply #335 - 11/30/11 at 14:14:14
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I looked at 17.Qd3 which seems unclear after 17...Qh5! With deep analysis maybe we can prove an advantage for WHite but i don't want to try this in practice. Black is very active and a slight mistake can prove fatal. Indeed, i have to change my main line after 3...f5.

Mr Bucker, i'd like to see your idea after my proposal in the 3...Bc5 line. I like White very much to be honest. I may be wrong but till now nobody proved me wrong. I am sure that you'll come close!  Smiley (or even do it at the end!)

In the Berlin i think that the gambit idea is interesting but my main line would be to enter the endgame. There is simply nothing else.
  
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Re: Spanish repertoire
Reply #334 - 11/30/11 at 10:03:46
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Regarding the study in # 331, Black seems fine to me after 13...c5 instead of 13...0-0, e.g. 14.Nb5 0-0 15.Nxc7 Rb8 16.Nxd5 Bd6 (# 275) and Black has a good game (Houdini agrees).
Regarding 9.Nxe5- isn't Black supposed to be OK after 9...Qe6? Most top level games after it end in a draw, most recently Bologan- Svjaginsev.
EDIT: I found a recent game Omarsson-Lyell where indeed 13...c5 14.Nb5 0-0 15.Nxc7 Rb8 16.Nxd5 Bd6 was played. Black won, but white's 17.Qd2 seems counter-intuitive to me.
« Last Edit: 11/30/11 at 13:43:44 by PANFR »  
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Re: Spanish repertoire
Reply #333 - 11/30/11 at 09:27:55
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Hello Ametanoitos,

good to see you so active again on this site. Your post #331 on 3...f5 doesn't consider 13...c5!!, see #275. And I think you are too pessimistic about 3...Bc5. 

The Berlin is interesting, the topic would be fine with me. I have written about the L'Hermet Variation (aka Berlin Gambit) 6.dxe5. Seems to be equal, but there is much which Black must avoid.
  
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Re: Spanish repertoire
Reply #332 - 11/30/11 at 09:02:25
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My suggestion against 3...Bc5 is this:

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. O-O O-O 6. d4 Bb6 7. Bg5 h6 8. Bh4 d6 9. Bxc6 

(Also 9. Qd3 is between +/= and = but i wouldn't base my Black repertoire in that position. For White i would be happy to just know this and move on to study more critical lines. I would be happy with my +2=8-0 score in 10 games! But fortunately another simple line exists) 

9... bxc6 10. dxe5! dxe5 11. Nbd2! 

I extensively practiced that line for Black's sife 4 years ago with bad results. I analysed it for many days. Today, with more modern software the conclusion is the same. White has a small edge which is enough to satisfy me from the theoretical perspective. In practice some care is needed but if you study a bit further those positions you'll score massively with White. For example 11...Re8 12.Qc2! with the idea c4-Nb3-c5 is just +/- and 11...Bg4 12.Qa4! is also strong. 

I suggest to move on to study the Berlin! I have ideas there  of course but i could use some help. It is great to combine powers for more critical variations but as always in this foroum we spend time on less critical stuff first. I dont claim that i proved anything for White against 3...Bc5 and 3...f5, i just claim that i meet 3...a6 and 3...Nf6 much more ofet and i prefer beeing better prepared for this and just know a good way-out against lesser known lines. I think that my "way-out" against 3...f5 and 3...Bc5 is OK, so for me it makes sense to move on quickly. What do you think?  Smiley

  
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Re: Spanish repertoire
Reply #331 - 11/30/11 at 08:24:11
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This is my file on the 3...f5. You can paste it on chessbase since i don't know how to use that pgn reader application. Sorry if a solution has already been mentioned here but when i did this work i was quite sure that it is a safe way for a White edge:

[Event "?"]
[Site "?"]
[Date "2011.04.17"]
[Round "?"]
[White "Further study"]
[Black "?"]
[Result "*"]
[ECO "C63"]
[Annotator "Ntirlis,Nikos"]
[PlyCount "43"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 Nf6 6. Nxf6+ Qxf6 (6... gxf6
7. d4 $1) 7. Qe2 Be7 8. Bxc6 bxc6 (8... dxc6 {is Sokolov's main line} 9. Nxe5 (
9. Qxe5 Bg4 10. Qxf6 Bxf6 11. d3 O-O-O $44 {1-0 Naiditsch,A (2687)-Salem,A 
(2484)/Moscow RUS 2010/OM 2.04 (37)}) 9... Bf5 (9... O-O 10. O-O Bd6 11. d4 c5
12. Be3 Be6 13. f4 Qf5 14. b3 Qe4 {and now Sokolov likes} 15. dxc5 $1 {with
the idea (probably)} Bxc5 16. Rae1 Bb4 17. Bf2 Qxe2 18. Rxe2 $14) 10. O-O O-O (
10... O-O-O {"woth analysing" Sokolov, but this was tested in a high class
game:} 11. d3 Rhe8 12. f4 Kb8 13. Qf2 Bc8 14. Bd2 b6 15. Rae1 Qe6 16. f5 Qd5
17. c4 Qxe5 18. Rxe5 {1-0 Leko,P (2751)-Aronian,L (2750)/Nice 2009/OM 2.04})
11. d4 Bd6 12. c3 (12. f4 Bxe5 13. dxe5 Qg6 14. Rf2 Rad8 15. Be3 a6 16. Kh1 Rd5
17. h3 Qg3 18. Rf3 Qg6 19. c4 Bd3 20. Qf2 Bxc4 21. f5 Qe8 22. Bd4 Rxe5 23. Qg3
Re7 24. f6 Rd7 25. Bc5 Bd5 26. Re3 Qf7 27. Bxf8 Qxf8 28. Rae1 Qxf6 29. Re8+ Kf7
30. Qg4 Rd8 31. Qh5+ {1-0 Rasmussen,A (2513)-Bromann,T (2435)/Hillerod DEN
2010/OM 2.04}) 12... Be6 13. f4 Rae8 14. Be3 Qf5 15. b3 a5 16. Rae1 a4 17. c4 {
and Sokolov says that Black can hold. Houdini gives +0.70 but OK, White is
better and plays for two results}) 9. d4 $1 {Sokolov} (9. Qxe5 {0-1 Rasmussen,
A (2409)-Skytte,R (2475)/Skakliga 2007-08 2008/OM 2.04 (39)}) 9... Qg6 (9...
exd4 $2 10. Bg5 $1 Qe6 11. Qxe6 dxe6 12. Bxe7 Kxe7 13. Nxd4) 10. O-O d6 11. Qc4
$1 {Sokolov's improvement. Houdini agrees and practice has favoured White the
last 2 years} d5 (11... Bd7 $6 12. dxe5 d5 13. Qf4 Rf8 (13... Qxc2 $2 14. e6
Bxe6 15. Nd4 Qg6 16. Re1) 14. Qg3 {Sokolov}) 12. Qc3 exd4 (12... Bh3 13. Nh4 $1
(13. Ne1 $6 Bg4 $1 {with Be2 next} (13... Bf5 $6 {1-0 Filipenko Alexander V 
(RUS) (2362)-Zharkov Alexey (RUS) (2284)/Perm (Russia) 2009/OM 2.04 (40)}))
13... Qe6 14. Qg3 $14) 13. Nxd4 O-O (13... Bd7 14. Re1 Qf6 15. Nxc6 Qxc6 16.
Qxg7 O-O-O 17. Rxe7 Rhg8 18. Qxh7 Rh8 19. Qg7 d4 20. Bg5 Rhg8 21. Qf6 {1-0
Copar,A (2353)-Auzins,M (2452)/ICCF 1997/OM 2.04}) 14. Qxc6 {'1/2-1/2 Kislik,E
(2336)-Lyell,M (2224)/Kecskemet (Hungary) 2010/OM 2.04'} Qxc6 15. Nxc6 Bf6 16.
Re1 $1 (16. c3 {is only given by Sokolov}) 16... Bb7 17. Ne5 Rae8 (17... Bxe5
18. Rxe5 {probably this is what Sokolov wanted to avoid? The opposite
couloured Bishops?}) (17... Rfe8 18. Bf4 Re6 19. Nd3 Rae8 20. Rxe6 Rxe6 21. Rc1
Re7 22. b3 g5 23. Bd2 Kf7 24. Re1 Rxe1+ 25. Bxe1 g4 26. Ba5 c6 27. Bc7 Bd4 28.
Bd6 a6 29. Bc5 Bf6 30. Kf1 Ke6 31. Ke2 Kf5 32. Ke3 h5 33. Bd4 Be7 34. g3 h4 35.
f4 gxf3 36. Kxf3 hxg3 37. hxg3 Bc8 38. Be3 Bf6 39. g4+ Kg6 40. Bf4 Bc3 41. Be5
{1/2-1/2 Roberts,A (2264)-Noble,M (2306)/LSS 2008/OM 2.04}) 18. Bf4 Re7 19. Nd3
Rfe8 20. Rxe7 Rxe7 21. Be3 d4 22. Bd2 $14 *

Note that 17...Rae8 and 17...Rfe8 can be met by the same way as shown in the main line. Someone could argue that Black has enough comp here, or say that it may be +/= but defendable. I tried to prove this in some training games but i always had the feeling at the end that i was playing only for a draw and that i would be lucky if i achieve it. This is at least a practical choice for a repertoire. Safe (as Panfr -who is a solid IM!- said) and theoreticaly satisfactory for White
  
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Re: Spanish repertoire
Reply #330 - 11/30/11 at 01:58:05
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But seriously, tbis isn't about huggy, but about what Chess Truth is after 9.Nxe5.
  

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Re: Spanish repertoire
Reply #329 - 11/29/11 at 01:36:56
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Yeah, I saw huggy's post a while back and wondered what he was talking about.
  

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Re: Spanish repertoire
Reply #328 - 11/28/11 at 21:12:49
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PANFR wrote on 11/28/11 at 13:45:37:
The Jaenisch is a bad opening. Black cannot play for a win...  Tongue
I have played the Black side quite a bit, and as white I would pick 4.d3. Radjabov's treatment after 4.Nc3 is absolutely safe for Black- the fact that noone of the chess elite has managed to win against him is the best proof one can fetch.

I was under the impression that Radjabov had mainly played the line bxc6 in speed chess. Or am I wrong? 
Anyway, it may be a hint that bxc6 at least has some value. 

Markovich wrote on 11/28/11 at 15:30:18:
Would someone explain for my benefit why 5...Nf6 6.Nxf6+ Qxf6 7.Qe2 Be7 8.Bxc6 bxc6 9.Nxe5 is supposed to be O.K. for Black? In my data base, it scores well for White. 

Fortunately, this problem had already been solved by "Huggy" a while ago (post #270), viz:

huggy wrote on 10/27/11 at 15:54:11:
Have looked at a few earlier move alternatives for White to 9. Qxe5 (Nxe5, d4) and 12. Nd2 (0-0) but black also seems to be doing okay. - Huggy

So what's the solution? Huggy? Huggy?
  
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Re: Spanish repertoire
Reply #327 - 11/28/11 at 15:30:18
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Would someone explain for my benefit why 5...Nf6 6.Nxf6+ Qxf6 7.Qe2 Be7 8.Bxc6 bxc6 9.Nxe5 is supposed to be O.K. for Black?  In my data base, it scores well for White.  9...O-O 10.O-O Qe6 11.Re1 Bc5 12.Nf3 Qxe2 13.Rxe2 d6 was played in Efimenko - Naiditsch, Mukachevo 2010.  Here 14.d3 Bg4 was played, resulting in a draw. But 14.d4, as played in six games in my db of which White won four and drew one (I exclude a seventh game where a draw was immediately agreed), looks like a much more obvious and better move to me. 14...Bb6 15.c3 and so forth.

Why 14.d3, with seeming concern for the light squares, when Black's plans to exchange his light-square B on f3 anyway?
« Last Edit: 11/28/11 at 16:49:35 by Markovich »  

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Re: Spanish repertoire
Reply #326 - 11/28/11 at 15:25:30
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Chess is a very easy game, it would seem.
  

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Re: Spanish repertoire
Reply #325 - 11/28/11 at 13:45:37
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The Jaenisch is a bad opening. Black cannot play for a win...  Tongue
I have played the Black side quite a bit, and as white I would pick 4.d3. Radjabov's treatment after 4.Nc3 is absolutely safe for Black- the fact that noone of the chess elite has managed to win against him is the best proof one can fetch.
  
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Re: Spanish repertoire
Reply #324 - 11/28/11 at 06:53:00
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Markovich wrote on 11/28/11 at 01:20:30:
Well I'm a monkey's uncle if 4.Nc3 isn't the best move.


A year ago I was convinced that 4.d3 was the only way to achieve an advantage against the Jaenisch. Now I think both 4.Nc3 and 4.d3 are equivalent - a little better for White, but Black has no problems.
  

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Re: Spanish repertoire
Reply #323 - 11/28/11 at 01:20:30
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Well I'm a monkey's uncle if 4.Nc3 isn't the best move.
  

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Re: Spanish repertoire
Reply #322 - 11/28/11 at 01:18:36
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The same can be said of 4.Nc3 fxe4 5.Nxe4 Nf6 6.Qe2 d5 7.Nxf6+.
  

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Re: Spanish repertoire
Reply #321 - 11/27/11 at 22:40:40
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What do you guys think of trying to find an edge for White against 3...f5 4.d3 fe4 5.de4 Nf6 6.0-0 Bc5 7.Qd3 Nd4 (or 7.Qe2 Nd4)? In my opinion all of Black's alternative responses to 4.d3 are +=, so if we can find something here, then the theoretical problem of the Jaenisch may be solved.
  

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Re: Spanish repertoire
Reply #320 - 11/22/11 at 22:31:32
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1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6 Qxf6 7.Qe2 Be7 8.Bxc6 bxc6 9.Qxe5 d6 10.Qxf6 Bxf6 11.d3 0-0 12.Nd2 d5 13.Rb1. 

Alternatives: 

(a) 13.Kd1 c5 14.Rb1 c4! 15.dxc4 dxc4 16.Nxc4 Ba6 comp.

(b) 13.f3 may be best.

13...c5 14.b3 Bd7

Michael Ayton wrote on 11/03/11 at 21:00:22:
I've only just now seen the earlier parts of this thread, and noticed that Stefan had already (#199) considered 12 ...d5 13 Rb1 c5 14 b3, giving here 14 ...Bd7 15 Kd1 Rae8 16 f3 as good for White. I guess 14 ...Bf5 15 f3 Rae8 16 Kd1 Be5 is a logical enough attempt to improve ...

Michael Ayton's 14...Bf5 is interesting. But 14...Bd7 is just as logical (supports a5-a4), and in the meantime I found an improvement upon my older line:

15.Kd1 Be7! (more precise than 15...Rae8) 16.f3 Bd6. Black's pieces are well placed, working on both flanks:

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *

17.Ba3 a5 18.Re1 Rfe8 19.Rxe8+ Rxe8 20.Nf1 a4 21.bxa4

Or 21. g3 axb3 22.axb3 Bh3 23.Nd2 h5 22.Bc1 h4 =.

21...Bxa4 22.d4 cxd4 23.Bxd6 d3 24.Kd2 dxc2 25.Rc1 cxd6 26.Ne3 d4 27.Nxc2 Rb8 28.a3 Rb2 29.Kd3 Ra2 =.
  
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Re: Spanish repertoire
Reply #319 - 11/21/11 at 19:06:30
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[b]1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6 Qxf6 7.Qe2 Be7 8.Bxc6 bxc6 9.Qxe5 d6 10.Qxf6 Bxf6 11.d3 0-0 12.Nd2 d5.[/b] Indeed, this seems critical. Interesting to see Michael Ayton and Markovich studying [b]13.Nb3,[/b] a move which I had ignored.

[fen]r1b2rk1/p1p3pp/2p2b2/3p4/8/1N1P4/PPP2PPP/R1B1K2R[/fen]
[quote author=4C4F4543220 link=1311509071/302#302 date=1320354022]I was going to go 13 ...c5 here till a computer pointed out 13 ...a5!?. It continued rather interestingly!: 14 a4 c5 15 Nc5 Re8!? 16 Kf1 Rb8 17 h3 (17 Nb3? Bf5; 17 Rb1? Bd4 18 Be3 [18 Nb3 Rb3!] Re3; 17 Ra2? Rb6 threat ...Rc6) Bb2, with, presumably, rough equality ...[/quote]
...plus more analysis, also 13...Bd7 by Markovich. 

But including the pair of moves a4/a5 isn't always desirable, since the pawn a5 can become a target (for Nb3 and Bd2). So the alternative 13...c5 is well worth a look. 

Or perhaps not, since 13...c5 14.Nxc5 Re8+ 15.Kf1! (15.Kd1?! Bd4 16.Nb3 Bxf2 17.h3 Rf8 comp.) seems okay for White. However, cannot Black play [b]13...Re8+ [/b]and reduce White's options? 

(a) 14.Kd2 a5 15.a4 c5

(b) 14.Kd1 and only now 14...c5! 15.Nxc5 Bd4 and so on (comp.)

(c) 14.Kf1 a5! 15.a4 Bf5 16.h3 h5 (or Rb8), Black has full compensation.
  
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Re: Spanish repertoire
Reply #318 - 11/11/11 at 09:53:32
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Zatara wrote on 11/11/11 at 06:25:56:
is this the way to a good advantage for white??? 

Yes, unless Black has improvements on Suetin-Zinn, Berlin 1965, Kondratjev-Lublinsky, Moscow 1968 and/or Gildezetdinov-Lublinsky, corr 1968.
I don't see why the Bishop would be better on b4 than on c5.
  

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Re: Spanish repertoire
Reply #317 - 11/11/11 at 06:25:56
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SOOO Radjabov continues to push the schielmann envulope....   Anyway, I was studying Nigel Davies book gambit 2.  My question is after 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 Bb4 5.exf5 (said to be strongest by Davies)is this the way to a good advantage for white???  Black does seem to develop quickly...
thanks,
Zatara
  
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Re: Spanish repertoire
Reply #316 - 11/10/11 at 18:16:19
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Thanks for this interesting take on things, Stefan, and good luck with the move! I too will return to this I'm sure, but right now I have to get rid of a nasty bug, which is afflicting half the UK population it seems ...
  
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Re: Spanish repertoire
Reply #315 - 11/09/11 at 21:26:06
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MNb wrote on 11/09/11 at 01:16:37:
FM Bücker three pages ago stated that 8...bxc6 is equal, so I'm not sure he will save White. Only tonight I went through the last two pages and White's main problem seems to be the lack of coordination, especially because of the move Ke1-d1. I am sorry if this already has been addressed, but is there anything wrong with 12.O-O iso 12.Nd2 ?

12.0-0 Re8 13.Re1 Rxe1+ 14.Nxe1 Be6 = didn't seem dangerous. 

It's good to see all this concrete analysis here. I'll return, but right now I am too busy - selling a house, packing all these nasty chess books which always get in the way, moving to another town. - Basically I agree with Michael Ayton that it's more a question of general piece activity. This g7-g5-g4 plan looks a bit dubious in comparison. White has some problems with protecting those h-g-f pawns, e.g. after exchanging the h1 rook on e1, when the other rook is still far away on a1 or b1. For now, no concrete analysis, but white pawns on h2-g2-f3 mean more targets (e.g. Rg6) than two pawns.
  
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Re: Spanish repertoire
Reply #314 - 11/09/11 at 17:25:27
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He said that he considered that it was equal, but he didn't say why. His last analysis on the subject pointed to the opposite conclusion. He has no obligation to speak further, but it would be useful if he did.
  

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Re: Spanish repertoire
Reply #313 - 11/09/11 at 01:16:37
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FM Bücker three pages ago stated that 8...bxc6 is equal, so I'm not sure he will save White. Only tonight I went through the last two pages and White's main problem seems to be the lack of coordination, especially because of the move Ke1-d1. I am sorry if this already has been addressed, but is there anything wrong with 12.O-O iso 12.Nd2 ?

If this doesn't help we'll have to peel back. There is 7.O-O and Be7 intending 8.Bxc6 bxc6 looks best. If White doesn't go for pawn e5 Black seems to equalize with his halfopen f-file and potential centre majority. If White does Black gets a lead in development again.

So perhaps 6.Qe2 d5 7.Nxf6+ gxf6 8.d4 Bg7 9.dxe5 O-O 10.e6 Ne5 (Re8 and we might follow Van der Wiel-Timmermans, Hilversum 1983) 11.Bf4 c6 12.Nxe5 fxe5 13.Bxe5. I think White missed a win in Meier-De Jong, Antwerpen 2010.
  

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Re: Spanish repertoire
Reply #312 - 11/08/11 at 17:11:05
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So this 3..f5 thing continues to annoy. I'm not sure if any of us alone is up to the task of reaching a convincing conclusion about ...bxc6, but maybe in concert we can achieve something. It would be nice to hear from Stefan, who may be the best analyst to work on our project so far, concerning some of the ideas recently developed here.

I do declare that if our work continues to support the Jaenisch, I'll take it up again myself.
  

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Re: Spanish repertoire
Reply #311 - 11/08/11 at 10:42:08
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[quote]I must have missed that.[/quote]
Take a look at ##298, 299. I'd suggested (after 12 ...d5 13 Rb1 c5 14 b3) [u]14 ...Bf5[/u] iso Stefan's 14 ...Bd7. Who knows if it'll hold up, but it looks reasonably promising to me so far. Markovich and I then went on (##300-7) to discuss some responses by White other than Stefan's Rb1/b3 plan.
  
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Re: Spanish repertoire
Reply #310 - 11/08/11 at 09:59:09
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I must have missed that.
  

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Re: Spanish repertoire
Reply #309 - 11/08/11 at 08:31:25
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MNb wrote on 11/08/11 at 00:45:22:
Apologies for the late update.



I will incorporate the last two pages later, if necessary.
At this moment I just remind that the debate is about 8...bxc6 and that FM Bücker on page 13-15 after 12...d5 also suggested the plan with Rb1 and b3. Maybe I haven't paid enough attention, but I am under the impression that this suggestion has been forgotten.

I thought we had at least preliminary investigated the plan of first playing ...Be5, then pushing the g-pawn, with tentatively favorable conclusions for Black.
  

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Re: Spanish repertoire
Reply #308 - 11/08/11 at 00:45:22
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Apologies for the late update.



I will incorporate the last two pages later, if necessary.
At this moment I just remind that the debate is about 8...bxc6 and that FM Bücker on page 13-15 after 12...d5 also suggested the plan with Rb1 and b3. Maybe I haven't paid enough attention, but I am under the impression that this suggestion has been forgotten.
  

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Re: Spanish repertoire
Reply #307 - 11/07/11 at 19:13:00
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Markovich wrote on 11/04/11 at 16:40:09:


I think Black's best after 13.Nb3 is 13...Bd7 14.f3 Rae8+ 15.Kd1 and now the same old idea of 15...g5 and blasting away at White's kingside.


Continuing this, I looked at 16.Nc5 Bf5 17.c3 g4 18.Bh6 Rf7 19.Kd2 Rfe7 20.Rae8 Rxe1 22.Rxe1 Rxe1 23.Kxe1 gxf3 24.gxf3 Be5 25.h4 Bg3+ 26.Kd2 Bxh4 27.Bf4 Be7 and it appears to me that Black can hold without too much difficulty. If 28.Nb3 he just plays 28...h5 and plays what seems to me to be a pretty easy pawn-down ending.

Obviously this is just one possibility, but it doesn't seem discouraging for Black.
  

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Re: Spanish repertoire
Reply #306 - 11/07/11 at 11:42:25
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[quote]In your first paragraph, 20...c5 21.Be3 d4 22.Bg5 Rf2 23.Re2 Rf1+ 24.Kd2 Rxa8 25.Nxa8 Bd7 26.b3 is a likely continuation.  [/quote]
Maybe 22 ...Bb7 here is an improvement? (My Houdini surprised me by giving, instead of 21 Be3, the wacky line 21 c4!? Bf5 22 Ra3!? dc 23 dc Bg6 24 Be3 Bc7, with big comp.! No prejudices, these things ...)

But 13 ...Bd7 and the kingside blast also looks interesting. Has White got time for d4/c3, I wonder?

All in all the Schliemann is a most intriguing creature. If - [i]if[/i] - it can be shown that these Tartakover Variation endings are drawn then maybe emphasis shifts back to the 4 d3 lines, but I'm not aware that White has anything better there than the perhaps tedious, but presumably drawn Queen and Rook ending of Topalov-Radjabov. Maybe something like this is R.'s thinking? -- at any rate I find it fascinating that he is prepared to play the Schliemann repeatedly against super-GM opposition!
  
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Re: Spanish repertoire
Reply #305 - 11/05/11 at 17:07:24
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Sorry, I meant 13.Nb3 and all the move numbers should be one less.

In your first paragraph, 20...c5 21.Be3 d4 22.Bg5 Rf2 23.Re2 Rf1+ 24.Kd2 Rxa8 25.Nxa8 Bd7 26.b3 is a likely continuation.  I have no idea if Black can hold the pawn-down ending, even with White's knight temporarily misplaced. I doubt that White risks defeat, however.
  

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Re: Spanish repertoire
Reply #304 - 11/05/11 at 11:09:34
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[quote]In your first line I looked at 16.Kd1 Bd4 17.Nb3 Bxf2 18.h3, which appears to be good for White.[/quote]
I [i]wondered[/i] why the PC didn't go 16 Kd1 ... But here after 18 ...Rf8 19 Bd2 Bb6 20 Re1 c5 Black still seems very active? How do you think White should make progress?

In this line there's [u]15 ...Bd4[/u] as well as 15 ...Re8!?. After 16 Be3 Bb2 17 Rb1 Bc3 18 Ke2 d4 19 Bc1 Re8 20 Kd1 Bb4 21 Ne4 Bd7 22 f3 Bc6 23 Ra1 White has hugely improved his Knight, but can he make progress after say 23 ...Re6 idea ...Rg6 (or 23 ...Rf8 then ...Rf5, ...Rh5)?

Maybe [u]12 ...Bf5 [/u]is worth analysing as well ...

[quote]I think Black's best after 14.Nb3 is 14...Bd7 15.f3 Rae8+ 16.Kd1 and now the same old idea of 17...g5 and blasting away at White's kingside. It's interesting that the immedediate 15.Nc5 runs into 15...Rae8+ 16.Kd1 Bg4+ 17.f3 Bd4 and White is in some difficulty, since 18.Nb3 loses to 18...Rxf3. [/quote]
Sorry, am I being thick? Which position is this?


Q: In the 4 d3/7 Qd3 variation, I notice ChessPub doesn't mention 7 ...Qe7. Is there a serious problem with it? 

  
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Re: Spanish repertoire
Reply #303 - 11/04/11 at 16:40:09
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In your first line I looked at 16.Kd1 Bd4 17.Nb3 Bxf2 18.h3, which appears to be good for White.

I think Black's best after 13.Nb3 is 13...Bd7 14.f3 Rae8+ 15.Kd1 and now the same old idea of 15...g5 and blasting away at White's kingside. It's interesting that the immedediate 14.Nc5 runs into 14...Rae8+ 15.Kd1 Bg4+ 16.f3 Bd4 and White is in some difficulty, since 17.Nb3 loses to 17...Rxf3.
« Last Edit: 11/05/11 at 17:10:25 by Markovich »  

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Re: Spanish repertoire
Reply #302 - 11/03/11 at 21:00:22
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[quote]Does White really have anything to brag about after 12...d5 13.0-0 Re8?[/quote]
Maybe not. I guess 14 Nb3 must be the move -- could be quite a critical line?

[quote]12...d5 13.Nb3 needs to be investigated.[/quote]
I was going to go 13 ...c5 here till a computer pointed out 13 ...a5!?. It continued rather interestingly!: 14 a4 c5 15 Nc5 Re8!? 16 Kf1 Rb8 17 h3 (17 Nb3? Bf5; 17 Rb1? Bd4 18 Be3 [18 Nb3 Rb3!] Re3; 17 Ra2? Rb6 threat ...Rc6) Bb2, with, presumably, rough equality ...

PS. Sorry! I've only just now seen the earlier parts of this thread, and noticed that Stefan had already (#199) considered [u]12 ...d5[/u] 13 Rb1 c5 14 b3, giving here [u]14 ...Bd7[/u] 15 Kd1 Rae8 16 f3 as good for White. I guess [u]14 ...Bf5[/u] 15 f3 Rae8 16 Kd1 Be5 is a logical enough attempt to improve ...


« Last Edit: 11/04/11 at 07:00:24 by Michael Ayton »  
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Re: Spanish repertoire
Reply #301 - 11/03/11 at 18:30:42
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[quote author=7E7D7771100 link=1311509071/300#300 date=1320343517]Yes, looks like a lot of Black pressure ... 

I wonder also if Black can start with [u]12 ...Bf5[/u], discouraging castling (13 0-0 Rae8) and meeting 13 Rb1 with 13 ...d5 again.[/quote]
Does White really have anything to brag about after 12...d5 13.0-0 Re8? However 12...d5 13.Nb3 needs to be investigated.
  

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Re: Spanish repertoire
Reply #300 - 11/03/11 at 18:05:17
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Yes, looks like a lot of Black pressure ... 

I wonder also if Black can start with [u]12 ...Bf5[/u], discouraging castling (13 0-0 Rae8) and meeting 13 Rb1 with 13 ...d5 again.
  
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Re: Spanish repertoire
Reply #299 - 11/03/11 at 17:08:43
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In your second line, I looked at 17.Ba3 Bd6 18.Re1 (18.d4 cxd4 15.Bxd6 cxd6 looks fine for Black) 18...g5!? with the idea of radically simplifying the kingside pawn structure. E.g. 19.h3 h5 and so forth or 19.Nf1 g4 20.f4 Bxf4 21.Bxc5 g3.  I'm not sure, but White's win looks difficult to this amateur.

I suppose White could try 18.h4 instead of 18.Re1, but then 18...Rf6 and so forth.
  

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Re: Spanish repertoire
Reply #298 - 11/03/11 at 14:44:45
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[quote]At any rate, since huggy's foregoing analysis was met by Stefan's comment that Black has insufficient comp, perhaps Stefan will be good enough to explain why he now considers the position after ...bxc6 to be equal. [/quote]

Interesting discussion. I've only looked at this briefly, but it seems to me Stefan's b3/f3 plan is just good for White which might imply 12 ...Rb8 is wrong. Any mileage in just 12 ...d5 and 13 ...c5 taking space? On 13 0-0, 13 ...c5 14 Re1 (14 Nb3 c4) Bf5 15 Nf3 and now 15 ...Rab8 might be OK? Or if White sticks with 'the plan' with 13 Rb1, maybe something like 13 ...c5 14 b3 Bf5 15 f3 Rae8 16 Kd1 Be5 might suffice?
  
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Re: Spanish repertoire
Reply #297 - 11/02/11 at 05:30:27
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You may be right, but I wouldn't call it completely obvious, since Black seems to have have pretty good comp after the queen exchange.

9.0-0 was such a disaster because it implied that White's queen should go a-hunting on the queenside. You're very often in trouble if you're behind in development and merrily winning queenside pawns.
  

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Re: Spanish repertoire
Reply #296 - 11/02/11 at 02:57:38
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Obviously Black shouldn't allow the exchange of Queens.
a) 9...Qg6 (Shamkovich) 10.O-O O-O 11.Qxe7 Rxf3 12.d3 ended in a draw, but is good for White. Chura-Semenova, Pardubice 1992.
b) 9...Qf7 10.Qxc7 (who says A must say B too; two pawns is quite a lot) O-O 11.d3 Bb4+ (Hunter) 12.Kf1. Giving up castling rights is inconvenient, but White will get Her Majesty into play again via e5 or g3 and will otherwise just finish development.
10.O-O d6 is a bit too similar to 9.O-O to my taste.
  

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Re: Spanish repertoire
Reply #295 - 11/01/11 at 17:00:57
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Markovich wrote on 11/01/11 at 01:35:02:
So it seems to me that we should return to 9.Qxe5 d6 10.Qxf6 Bxf6 and be sure the claim "=" really is justifed. The main thing I have to say about it is that 11.d3 appears to be the best move. But one point worth observing is that Black doesn't necessarily equalize if he trades dark-square bishops to win the b-pawn, since White's c- and b-pawns will block three of Black's.


At any rate, since huggy's foregoing analysis was met by Stefan's comment that Black has insufficient comp, perhaps Stefan will be good enough to explain why he now considers the position after ...bxc6 to be equal.
  

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Re: Spanish repertoire
Reply #294 - 11/01/11 at 11:19:37
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Markovich wrote on 11/01/11 at 01:08:44:
Stefan Buecker wrote on 10/31/11 at 17:56:50:
Markovich wrote on 10/31/11 at 17:34:18:
9.0-0 d6 10.Qe4 0-0 11.d4 Qf5 12.Qxc6 Bd7 13.Qc4+ Be6 14.Qxc7 e4 does indeed look risky for White, but maybe warrants a deeper look before we abandon 9.0-0. I find 11...Qf7 12.Qxc6 Rb8 13.Qxc7 Bb7 14.Bg5 less persuasive.

On the other hand 12...Be6 13.dxe5 Bd5 14.Qc3 Rae8! is a nice move that asks White what he's doing while Black merely builds up a strong attack. So I'm fairly well persuaded that 9.0-0 isn't any good.

On 14.Bg5, the reply 14...Qg6 -/+ seems strong.


Fair enough after 15.Bxe7 Bxf3 16.g3 Rfc8.


Even better 16...Qe6/f5 17.Bf8 Rf8 and 18...Qh3 wins
  
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Re: Spanish repertoire
Reply #293 - 11/01/11 at 01:35:02
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So it seems to me that we should return to 9.Qxe5 d6 10.Qxf6 Bxf6 and be sure the claim "=" really is justifed. The main thing I have to say about it is that 11.d3 appears to be the best move. But one point worth observing is that Black doesn't necessarily equalize if he trades dark-square bishops to win the b-pawn, since White's c- and b-pawns will block three of Black's.
  

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Re: Spanish repertoire
Reply #292 - 11/01/11 at 01:08:44
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Stefan Buecker wrote on 10/31/11 at 17:56:50:
Markovich wrote on 10/31/11 at 17:34:18:
9.0-0 d6 10.Qe4 0-0 11.d4 Qf5 12.Qxc6 Bd7 13.Qc4+ Be6 14.Qxc7 e4 does indeed look risky for White, but maybe warrants a deeper look before we abandon 9.0-0. I find 11...Qf7 12.Qxc6 Rb8 13.Qxc7 Bb7 14.Bg5 less persuasive.

On the other hand 12...Be6 13.dxe5 Bd5 14.Qc3 Rae8! is a nice move that asks White what he's doing while Black merely builds up a strong attack. So I'm fairly well persuaded that 9.0-0 isn't any good.

On 14.Bg5, the reply 14...Qg6 -/+ seems strong.


Fair enough after 15.Bxe7 Bxf3 16.g3 Rfc8.
  

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Re: Spanish repertoire
Reply #291 - 10/31/11 at 17:56:50
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Markovich wrote on 10/31/11 at 17:34:18:
9.0-0 d6 10.Qe4 0-0 11.d4 Qf5 12.Qxc6 Bd7 13.Qc4+ Be6 14.Qxc7 e4 does indeed look risky for White, but maybe warrants a deeper look before we abandon 9.0-0. I find 11...Qf7 12.Qxc6 Rb8 13.Qxc7 Bb7 14.Bg5 less persuasive.

On the other hand 12...Be6 13.dxe5 Bd5 14.Qc3 Rae8! is a nice move that asks White what he's doing while Black merely builds up a strong attack. So I'm fairly well persuaded that 9.0-0 isn't any good.

On 14.Bg5, the reply 14...Qg6 -/+ seems strong.
  
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Re: Spanish repertoire
Reply #290 - 10/31/11 at 17:34:18
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9.0-0 d6 10.Qe4 0-0 11.d4 Qf5 12.Qxc6 Bd7 13.Qc4+ Be6 14.Qxc7 e4 does indeed look risky for White, but maybe warrants a deeper look before we abandon 9.0-0. I find 11...Qf7 12.Qxc6 Rb8 13.Qxc7 Bb7 14.Bg5 less persuasive.

On the other hand 12...Be6 13.dxe5 Bd5 14.Qc3 Rae8! is a nice move that asks White what he's doing while Black merely builds up a strong attack. So I'm fairly well persuaded that 9.0-0 isn't any good.
  

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Re: Spanish repertoire
Reply #289 - 10/31/11 at 16:39:22
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tp2205 wrote on 10/31/11 at 14:04:42:
Stefan Buecker wrote on 10/31/11 at 08:28:48:

Markovich wrote on 10/31/11 at 03:01:17:
MNb wrote on 10/30/11 at 22:44:02:
Looks like Black has nice play after 8.Bxc6 bxc6 9.O-O d6 10.Qe4 (10.d4 Qg6 transposes to a line above and 10.d3 Bg4 is good for Black) O-O 11.d4 (I don't see what White has after 11.d3) Qf7 (anticipates 12.Bg5) 12.dxe5 d5 because of the halfopen f-file, the d5-c5 centre and the pair of Bishops.


Probably more critical is 12.Qxc6, intending 12...Be6 13.dxe5 Bd5 14.Qc3 Qg6 15.Ne1

I had studied this in the move-order 8.0-0 0-0 9.Qe4 d6 10.Bxc6 bxc6 11.d4 (11.Qxc6 Bg4!). My main line was 11...Qf5 which equalizes on the spot after 12.Qxf5, or White has to play 12.Qxc6 Bd7 with full compensation for Black. But 11...Qf7 (MNb) seems to be just as good. After 14.Qc3 Rad8!? =, where do you develop your Bc1?

I am not sure but 15.Bg5 Bf3 16 Be7 Qe7 17.gf3 Qe5 (de5 18.Tad1 is probably +=) 18.Qe5 de5 19.Rad1 may also be += e.g. Rd1 20.Rd1 Rf3 21. Kg2 Rf4 22.Rd8 Rf8 23.Rd5 perhaps even better. But I rather leave this to some endgame experts.

You may be right. Maybe 14...Rae8 is more precise, in detail:

11...Qf7 (MNb) 12.Qxc6 (Markovich) and then: 

(a) 12...Rb8 13.Qxc7 (Markovich) 13...Bb7 =. 
(b) 12...Be6 13.dxe5 Bd5 14.Qc3 Rae8! 15.Be3 Bxf3 16.gxf3 Kh8 17.Qc6 Qh5 e.g. 18.Kh1 dxe5 19.Rg1 e4 20.fxe4 Qf3+ 21.Rg2 Rd8 =. 

And, not to forget, there is still 11...Qf5! =.
  
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Re: Spanish repertoire
Reply #288 - 10/31/11 at 14:04:42
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Stefan Buecker wrote on 10/31/11 at 08:28:48:

Markovich wrote on 10/31/11 at 03:01:17:
MNb wrote on 10/30/11 at 22:44:02:
Looks like Black has nice play after 8.Bxc6 bxc6 9.O-O d6 10.Qe4 (10.d4 Qg6 transposes to a line above and 10.d3 Bg4 is good for Black) O-O 11.d4 (I don't see what White has after 11.d3) Qf7 (anticipates 12.Bg5) 12.dxe5 d5 because of the halfopen f-file, the d5-c5 centre and the pair of Bishops.


Probably more critical is 12.Qxc6, intending 12...Be6 13.dxe5 Bd5 14.Qc3 Qg6 15.Ne1

I had studied this in the move-order 8.0-0 0-0 9.Qe4 d6 10.Bxc6 bxc6 11.d4 (11.Qxc6 Bg4!). My main line was 11...Qf5 which equalizes on the spot after 12.Qxf5, or White has to play 12.Qxc6 Bd7 with full compensation for Black. But 11...Qf7 (MNb) seems to be just as good. After 14.Qc3 Rad8!? =, where do you develop your Bc1?


I am not sure but 15.Bg5 Bf3 16 Be7 Qe7 17.gf3 Qe5 (de5 18.Tad1 is probably +=) 18.Qe5 de5 19.Rad1 may also be += e.g. Rd1 20.Rd1 Rf3 21. Kg2 Rf4 22.Rd8 Rf8 23.Rd5 perhaps even better. But I rather leave this to some endgame experts.

  
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Re: Spanish repertoire
Reply #287 - 10/31/11 at 10:14:09
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tp2205 wrote on 10/31/11 at 09:35:50:
After 22.c4 (more or less forced) how do you continue, the best I could find was Bc5 23. Kh1 and then Qg4 threatening Bf5 and Rh2. Now 24.h3 looks too slow after Re8 and 25... Re2. But 24. Rf3 Bf5 25. Qf1 looks alright since I am not sure if Be4 works I haven't not found out how to deal with 26. Be3 which may be ok for white. Best seems to be Bf3 27 Bc5 Qh3 28.Qg1 Re8 29.Ne7 (29.gf3 Re2 -+)  Kf7 30. Bb4/a3/d6. The position still looks complicated 

Now 23...Qg4 looks a bit strange but 23...Bb7 does not impress me either Simply 24.Bd2 looks good enough.   
And after 23...Ba6 24. b4 takes the sting out of Rd5

Are there better plans for black?

30.Ba3 Bb7 31.Nd5 Qg3 looks fine, 30.Bd6 Be4!? (or Bb7 again) 31.Re1 Qg4 32.Rxe4 Rxh2+; and 30.Bb4 (to protect square e1) 30...a5! 31.Bd6 Rh6 32.c5 Be4 33.Re1 Qd3 =+. Maybe there are stronger lines for Black. But basically the problems seem to be on White's side.
  
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Re: Spanish repertoire
Reply #286 - 10/31/11 at 09:35:50
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Stefan Buecker wrote on 10/31/11 at 03:01:17:
[quote author=1714385A0 link=1311509071/281#281">Markovich wrote on 10/30/11 at 22:44:02:
Looks like Black has nice play after 8.Bxc6 bxc6 9.O-O d6 10.Qe4 (10.d4 Qg6 transposes to a line above and 10.d3 Bg4 is good for Black) O-O 11.d4 (I don't see what White has after 11.d3) Qf7 (anticipates 12.Bg5) 12.dxe5 d5 because of the halfopen f-file, the d5-c5 centre and the pair of Bishops.


Probably more critical is 12.Qxc6, intending 12...Be6 13.dxe5 Bd5 14.Qc3 Qg6 15.Ne1

I had studied this in the move-order 8.0-0 0-0 9.Qe4 d6 10.Bxc6 bxc6 11.d4 (11.Qxc6 Bg4!). My main line was 11...Qf5 which equalizes on the spot after 12.Qxf5, or White has to play 12.Qxc6 Bd7 with full compensation for Black. But 11...Qf7 (MNb) seems to be just as good. After 14.Qc3 Rad8!? =, where do you develop your Bc1?

MNb wrote on 10/30/11 at 18:08:02:
Very nice indeed. TP's analysis needs to be expanded a bit: 
16.Qg3 Qxg3 17.hxg3 d4 18.b3 Bd6 19.Nd5 Rf5 20.c4 dxc3 21.Nxc3 Be5 22.Bb2 c4 and Black is very active.
A move later: 16.Nd5 Bd6 17.Qg3 (the longer I look at 17.f4 the less I like it after Bb7!) Qe6 18.Qd3 c4 19.Qxc4 Rb4 20.Qd3 (too many moves with the Queen) Ba6 21.Nxb4 Bxd3 22.Nd3 with an unusual material balance; Black is active again.

20...Ba6 isn't bad. But look at 20...Rh4! 21.f4 Rh5!, White has to fight for survival. It may be a draw, but it is hard for White. [/quote]

After 22.c4 (more or less forced) how do you continue, the best I could find was Bc5 23. Kh1 and then Qg4 threatening Bf5 and Rh2. Now 24.h3 looks too slow after Re8 and 25... Re2. But 24. Rf3 Bf5 25. Qf1 looks alright since I am not sure if Be4 works I haven't not found out how to deal with 26. Be3 which may be ok for white. Best seems to be Bf3 27 Bc5 Qh3 28.Qg1 Re8 29.Ne7 (29.gf3 Re2 -+)  Kf7 30. Bb4/a3/d6. The position still looks complicated 

Now 23...Qg4 looks a bit strange but 23...Bb7 does not impress me either Simply 24.Bd2 looks good enough.   
And after 23...Ba6 24. b4 takes the sting out of Rd5

Are there better plans for black?
« Last Edit: 11/01/11 at 00:50:32 by Markovich »  
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Re: Spanish repertoire
Reply #285 - 10/31/11 at 08:28:48
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Markovich wrote on 10/31/11 at 03:01:17:
MNb wrote on 10/30/11 at 22:44:02:
Looks like Black has nice play after 8.Bxc6 bxc6 9.O-O d6 10.Qe4 (10.d4 Qg6 transposes to a line above and 10.d3 Bg4 is good for Black) O-O 11.d4 (I don't see what White has after 11.d3) Qf7 (anticipates 12.Bg5) 12.dxe5 d5 because of the halfopen f-file, the d5-c5 centre and the pair of Bishops.


Probably more critical is 12.Qxc6, intending 12...Be6 13.dxe5 Bd5 14.Qc3 Qg6 15.Ne1

I had studied this in the move-order 8.0-0 0-0 9.Qe4 d6 10.Bxc6 bxc6 11.d4 (11.Qxc6 Bg4!). My main line was 11...Qf5 which equalizes on the spot after 12.Qxf5, or White has to play 12.Qxc6 Bd7 with full compensation for Black. But 11...Qf7 (MNb) seems to be just as good. After 14.Qc3 Rad8!? =, where do you develop your Bc1?

MNb wrote on 10/30/11 at 18:08:02:
Very nice indeed. TP's analysis needs to be expanded a bit: 
16.Qg3 Qxg3 17.hxg3 d4 18.b3 Bd6 19.Nd5 Rf5 20.c4 dxc3 21.Nxc3 Be5 22.Bb2 c4 and Black is very active.
A move later: 16.Nd5 Bd6 17.Qg3 (the longer I look at 17.f4 the less I like it after Bb7!) Qe6 18.Qd3 c4 19.Qxc4 Rb4 20.Qd3 (too many moves with the Queen) Ba6 21.Nxb4 Bxd3 22.Nd3 with an unusual material balance; Black is active again.

20...Ba6 isn't bad. But look at 20...Rh4! 21.f4 Rh5!, White has to fight for survival. It may be a draw, but it is hard for White.
« Last Edit: 11/01/11 at 00:47:10 by Markovich »  
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Re: Spanish repertoire
Reply #284 - 10/31/11 at 06:52:52
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True. But 9.0-0 remains at issue.
  

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Re: Spanish repertoire
Reply #283 - 10/31/11 at 06:26:15
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Markovich wrote on 10/31/11 at 04:02:57:
MNb wrote on 10/30/11 at 18:08:02:
Very nice indeed. TP's analysis needs to be expanded a bit: 
16.Qg3 Qxg3 17.hxg3 d4 18.b3 Bd6 19.Nd5 Rf5 20.c4 dxc3 21.Nxc3 Be5 22.Bb2 c4 and Black is very active.
A move later: 16.Nd5 Bd6 17.Qg3 (the longer I look at 17.f4 the less I like it after Bb7!) Qe6 18.Qd3 c4 19.Qxc4 Rb4 20.Qd3 (too many moves with the Queen) Ba6 21.Nxb4 Bxd3 22.Nd3 with an unusual material balance; Black is active again.

19.Qd4 may be more challenging.

19... Bb7 looks quite good for black (20.Ne7 as after 19. Qc4 is not available). 20.Nc3 Qg6, 20.Nf4 Bf4 21.Bf4 Qg4, 20 Ne3 Rf4 21 Qa7 Rh4, 20.Rd1 Be5 and Rbd8 look all pleasant for black

  
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Re: Spanish repertoire
Reply #282 - 10/31/11 at 04:02:57
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MNb wrote on 10/30/11 at 18:08:02:
Very nice indeed. TP's analysis needs to be expanded a bit: 
16.Qg3 Qxg3 17.hxg3 d4 18.b3 Bd6 19.Nd5 Rf5 20.c4 dxc3 21.Nxc3 Be5 22.Bb2 c4 and Black is very active.
A move later: 16.Nd5 Bd6 17.Qg3 (the longer I look at 17.f4 the less I like it after Bb7!) Qe6 18.Qd3 c4 19.Qxc4 Rb4 20.Qd3 (too many moves with the Queen) Ba6 21.Nxb4 Bxd3 22.Nd3 with an unusual material balance; Black is active again.

19.Qd4 may be more challenging.
  

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Re: Spanish repertoire
Reply #281 - 10/31/11 at 03:01:17
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MNb wrote on 10/30/11 at 22:44:02:
Looks like Black has nice play after 8.Bxc6 bxc6 9.O-O d6 10.Qe4 (10.d4 Qg6 transposes to a line above and 10.d3 Bg4 is good for Black) O-O 11.d4 (I don't see what White has after 11.d3) Qf7 (anticipates 12.Bg5) 12.dxe5 d5 because of the halfopen f-file, the d5-c5 centre and the pair of Bishops.


Probably more critical is 12.Qxc6, intending 12...Be6 13.dxe5 Bd5 14.Qc3 Qg6 15.Ne1 or 12...Rb8! 13.Qxc7 (13.dxe5?! Rb4) 13...Bg4 14.Bg5 Bxg5 15.Qxf7+ Kxf7 16.Nxg5+ Kg6 17.Ne4 Rxb2 18.f3.
  

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Re: Spanish repertoire
Reply #280 - 10/30/11 at 23:22:03
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MNb wrote on 10/30/11 at 18:08:02:
Very nice indeed. TP's analysis needs to be expanded a bit: 
16.Qg3 Qxg3 17.hxg3 d4 18.b3 Bd6 19.Nd5 Rf5 20.c4 dxc3 21.Nxc3 Be5 22.Bb2 c4 and Black is very active.
A move later: 16.Nd5 Bd6 17.Qg3 (the longer I look at 17.f4 the less I like it after Bb7!) Qe6 18.Qd3 c4 19.Qxc4 Rb4 20.Qd3 (too many moves with the Queen) Ba6 21.Nxb4 Bxd3 22.Nd3 with an unusual material balance; Black is active again.


After 17.f4 Bb7 18 Qc4 Kh8 19.Bd2 (19.Be3 seems to be losing after Rf5) Bc6 20.Rf2 Black can take the draw with Bb5 or continue with Rb2 with compensation; psychologically that feels like =+. The position after 22 Nd3 is also not something I would like to have in an OTB game as the result of my opening preparation. After Rc8 23.c3 Qe2 or Qf5 (to stop Nf4) it is still not so clear to me how White will finish developing without returning at least a pawn. Objectively probably = but much easier to play with Black.
  
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Re: Spanish repertoire
Reply #279 - 10/30/11 at 22:44:02
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Looks like Black has nice play after 8.Bxc6 bxc6 9.O-O d6 10.Qe4 (10.d4 Qg6 transposes to a line above and 10.d3 Bg4 is good for Black) O-O 11.d4 (I don't see what White has after 11.d3) Qf7 (anticipates 12.Bg5) 12.dxe5 d5 because of the halfopen f-file, the d5-c5 centre and the pair of Bishops.
  

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Re: Spanish repertoire
Reply #278 - 10/30/11 at 19:54:18
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Well either we find += or we can condemn 3...a6 as a serious mistake and throw out 1.e4 as a critical try. Somehow to me, the latter seems less likely. I think 8.Bxc6 is best, and if bxc6 what about 9.0-0 intending 9...d6 10.Qe4?
  

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Re: Spanish repertoire
Reply #277 - 10/30/11 at 18:08:02
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Very nice indeed. TP's analysis needs to be expanded a bit: 
16.Qg3 Qxg3 17.hxg3 d4 18.b3 Bd6 19.Nd5 Rf5 20.c4 dxc3 21.Nxc3 Be5 22.Bb2 c4 and Black is very active.
A move later: 16.Nd5 Bd6 17.Qg3 (the longer I look at 17.f4 the less I like it after Bb7!) Qe6 18.Qd3 c4 19.Qxc4 Rb4 20.Qd3 (too many moves with the Queen) Ba6 21.Nxb4 Bxd3 22.Nd3 with an unusual material balance; Black is active again.
  

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Re: Spanish repertoire
Reply #276 - 10/30/11 at 15:44:05
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Stefan Buecker wrote on 10/30/11 at 14:21:00:
MNb wrote on 10/30/11 at 13:36:00:
Stefan Buecker wrote on 10/30/11 at 12:44:34:
In my opinion 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6+ Qxf6 7.Qe2 does not work, because 7...Be7 8.Bxc6 bxc6 is =.
I hope you will forgive my scepticism, but I need a little more to be convinced. OK, it wouldn't surprise me if accepting the pawn provides compensation (although this needs to be proven yet) but I quite like 9.d4. Three sample lines:
a) 9...exd4 10.Bg5 Qe6 11.Qxe6 dxe6 12.Bxe7 Kxe7 13.Nxd4 and White has a very nice and stable advantage, Janovsky-Tseshkovsky, Voskresensk 1992.
b) 9...O-O 10.Bg5 Qe6 (Qg6 11.Bxe7+ Re8 12.O-O Rxe7 13.Nxe5 is excellent for White as the pin always can be be resolved by Qc4+) 11.Bxe7 Qxe5 12.dxe5 and White is at least a bit better, Adorjan-Cortlever, Amsterdam 1970.
c) 9...Qg6 10.O-O d6 11.Qc4 d5 12.Qc3 exd4 13.Nxd4 Bd7 14.Re1 Qf6? (better Kf7 but 15.Bf4 remains nice for White; the Knight is not weaker than the Bishops, but Black's pawns are weaker than White's) 15.Nxc6 Qxc6 16.Qxg7 and White has the attack, Copar-Auzins, corr ICCF 1997.

13...c5!! =.

Very nice. I tried for the last hour or so to find anything for white after 14.Nb5 0-0 15.Nc7 Rb8 16.Nd5 Bd6 but have failed to do so. It seems that Black has full compensation for the pawns.
  
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Re: Spanish repertoire
Reply #275 - 10/30/11 at 14:21:00
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MNb wrote on 10/30/11 at 13:36:00:
Stefan Buecker wrote on 10/30/11 at 12:44:34:
In my opinion 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6+ Qxf6 7.Qe2 does not work, because 7...Be7 8.Bxc6 bxc6 is =.
I hope you will forgive my scepticism, but I need a little more to be convinced. OK, it wouldn't surprise me if accepting the pawn provides compensation (although this needs to be proven yet) but I quite like 9.d4. Three sample lines:
a) 9...exd4 10.Bg5 Qe6 11.Qxe6 dxe6 12.Bxe7 Kxe7 13.Nxd4 and White has a very nice and stable advantage, Janovsky-Tseshkovsky, Voskresensk 1992.
b) 9...O-O 10.Bg5 Qe6 (Qg6 11.Bxe7+ Re8 12.O-O Rxe7 13.Nxe5 is excellent for White as the pin always can be be resolved by Qc4+) 11.Bxe7 Qxe5 12.dxe5 and White is at least a bit better, Adorjan-Cortlever, Amsterdam 1970.
c) 9...Qg6 10.O-O d6 11.Qc4 d5 12.Qc3 exd4 13.Nxd4 Bd7 14.Re1 Qf6? (better Kf7 but 15.Bf4 remains nice for White; the Knight is not weaker than the Bishops, but Black's pawns are weaker than White's) 15.Nxc6 Qxc6 16.Qxg7 and White has the attack, Copar-Auzins, corr ICCF 1997.

13...c5!! =.
  
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Re: Spanish repertoire
Reply #274 - 10/30/11 at 13:36:00
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Stefan Buecker wrote on 10/30/11 at 12:44:34:
In my opinion 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6+ Qxf6 7.Qe2 does not work, because 7...Be7 8.Bxc6 bxc6 is =.
I hope you will forgive my scepticism, but I need a little more to be convinced. OK, it wouldn't surprise me if accepting the pawn provides compensation (although this needs to be proven yet) but I quite like 9.d4. Three sample lines:
a) 9...exd4 10.Bg5 Qe6 11.Qxe6 dxe6 12.Bxe7 Kxe7 13.Nxd4 and White has a very nice and stable advantage, Janovsky-Tseshkovsky, Voskresensk 1992.
b) 9...O-O 10.Bg5 Qe6 (Qg6 11.Bxe7+ Re8 12.O-O Rxe7 13.Nxe5 is excellent for White as the pin always can be be resolved by Qc4+) 11.Bxe7 Qxe5 12.dxe5 and White is at least a bit better, Adorjan-Cortlever, Amsterdam 1970.
c) 9...Qg6 10.O-O d6 11.Qc4 d5 12.Qc3 exd4 13.Nxd4 Bd7 14.Re1 Qf6? (better Kf7 but 15.Bf4 remains nice for White; the Knight is not weaker than the Bishops, but Black's pawns are weaker than White's) 15.Nxc6 Qxc6 16.Qxg7 and White has the attack, Copar-Auzins, corr ICCF 1997.
  

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Re: Spanish repertoire
Reply #273 - 10/30/11 at 12:44:34
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Markovich wrote on 10/30/11 at 05:27:43:
An excellent rule of thumb is that if you're analyzing 3...f5 and your analysis doesn't lead to +=, either White has misplayed or your analysis is wrong. 3...f5 at best is a path to certain kinds of positions which, if Black understands them well and White doesn't, may be a basis for a good result. It is not a path to theoretical equality.

In my opinion 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6+ Qxf6 7.Qe2 does not work, because 7...Be7 8.Bxc6 bxc6 is =. 

There are a few alternatives for White left: 7.0-0; 6.d3; and various 4th moves for White (4.d3 has been popular for a while, but is probably =, too). I don't have much experience here, so it is possible that a += is hidden somewhere. Which of those alternatives would be a reasonable candidate for +=?
  
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Re: Spanish repertoire
Reply #272 - 10/30/11 at 05:27:43
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An excellent rule of thumb is that if you're analyzing 3...f5 and your analysis doesn't lead to +=, either White has misplayed or your analysis is wrong. 3...f5 at best is a path to certain kinds of positions which, if Black understands them well and White doesn't, may be a basis for a good result. It is not a path to theoretical equality.
  

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Re: Spanish repertoire
Reply #271 - 10/28/11 at 00:39:30
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huggy wrote on 10/27/11 at 15:54:11:
Is there equality somewhere in the endgame of our last discussed 5.. Nf6 line (replies 199-208):
1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6 Qxf6 7.Qe2 Be7 8.Bxc6 bxc6 9.Qxe5 d6 10.Qxf6 Bxf6 11.d3 0-0 12.Nd2N  after 12.. Rb8? 

I've spent a while looking at the positions with a computer and board (trying to practice my heavy pieces middle/endgames!!) and Black seems to achieve equality in each of the major lines:
13. Rb1 - This seems to play out into a fairly equal RB endgame after the sequence beginning with 13.. d5 14. f3 (14. b3 Bc3; 14. Nb3 c5 15. Nxc5 Bc3+) c5 15. Kd1 c4 16. dxc4 dxc4 17. Re1 Rd8 18. Ke2 c3

13. Ne4  - Black achieves counterplay on either the b-file (via a5-a4 push if b3) or e-file (if Re1) after lines following 13.. Bd4.

13. f3 -  Re8+ Kd1 followed by Rb5 looks to equalize, either regaining material equality via b2 or the d-pawn (if c3 --> Rd5).

Have looked at a few earlier move alternatives for White to 9. Qxe5 (Nxe5, d4) and 12. Nd2 (0-0) but black also seems to be doing okay. 
Huggy

Hmm... 15.f3 followed by Bb2, what does Black have for the pawn? 

In the next weeks I am very busy (moving to another place; restarting Kaissiber). There are some loose ends, so to say. The "Indian Jungle" thread, I mean - certainly many are eager to read more of it. Will have to wait, sorry.
  
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Re: Spanish repertoire
Reply #270 - 10/27/11 at 15:54:11
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Is there equality somewhere in the endgame of our last discussed 5.. Nf6 line (replies 199-208):
1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6 Qxf6 7.Qe2 Be7 8.Bxc6 bxc6 9.Qxe5 d6 10.Qxf6 Bxf6 11.d3 0-0 12.Nd2N  after 12.. Rb8? 

I've spent a while looking at the positions with a computer and board (trying to practice my heavy pieces middle/endgames!!) and Black seems to achieve equality in each of the major lines:
13. Rb1 - This seems to play out into a fairly equal RB endgame after the sequence beginning with 13.. d5 14. f3 (14. b3 Bc3; 14. Nb3 c5 15. Nxc5 Bc3+) c5 15. Kd1 c4 16. dxc4 dxc4 17. Re1 Rd8 18. Ke2 c3

13. Ne4  - Black achieves counterplay on either the b-file (via a5-a4 push if b3) or e-file (if Re1) after lines following 13.. Bd4.

13. f3 -  Re8+ Kd1 followed by Rb5 looks to equalize, either regaining material equality via b2 or the d-pawn (if c3 --> Rd5).

Have looked at a few earlier move alternatives for White to 9. Qxe5 (Nxe5, d4) and 12. Nd2 (0-0) but black also seems to be doing okay. 

Huggy




  
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Re: Spanish repertoire
Reply #269 - 10/25/11 at 00:45:10
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Yeah Stefan, say how.
  

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Re: Spanish repertoire
Reply #268 - 10/24/11 at 21:15:26
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Stefan Buecker wrote on 10/24/11 at 19:18:12:
Our line against the Jaenisch doesn't work; Black is fine.

How exactly? Apparently I misunderstood that White at least had a nice plus. If you are right I will immediately take up 3...f5 again!
  

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Re: Spanish repertoire
Reply #267 - 10/24/11 at 19:18:12
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Göran wrote on 09/28/11 at 10:55:41:
In my database there are 362 games with 4.c3 (score 56,8%) and 235 games with 4.0-0 (score 57,7).
The main continuaion according to my database is 4.c3 Ba5 5.0-0 Nge7 6.Na3 see Balogh-Sedlak, HUN 2011

Perhaps White also can be more direct aiming for the e5-pawn:
4.c3      4...Be7 5.Bxc6 dxc6 6,Nxe5
     4...Ba5 5.Bxc6 dxc6 6.Nxe5 Qe7 7.d4 f6 8.Nc4 Qxe4+ 9.Ne3
                5...bxc6 6.Nxe5 Qe7 7.d4 f6 8.Nc4 Qxe4+ 9.Ne3      
     4...Ba5 5.a4 a6 6.Bxc6 bxc6 7.Nxe5 Qe7 8.d4 f6 9.Nc4 Qxe4 10.Ne3
                            6...dxc6 7.Nxe5 Qe7 8.d4 f6 9.Nc4 Qxe4 10.Nx3
     
and White semas to have a nice position in all three (five) variations.

Edit: 1e4 e5 2.Nf3 Nc6 3.Bb4 Bb5

1.e4 e5 2.Nf3 Nc6 3.Bb5 Bb4 4.c3 Ba5 5.Qa4 Bb6 6.d4 exd4 7.cxd4 Nge7 8.d5 Nb8 9.Bf4! is +/-. Thus 3...Rb8 must be preferred, again. 

Stefan Buecker wrote on 09/22/11 at 09:57:43:
Markovich wrote on 09/02/11 at 14:23:03:
kylemeister wrote on 09/01/11 at 19:23:30:
I had the same thought re the Ponziani, and the impression that 8. Nxd4 (possible even in the Ponz version) is a serious try.


I saw this move in my data base and wasn't sure what to think about it, but I think you're right that it
deserves serious investigation. 

I might have done more, but then thought I should show some respect and await the results of this serious investigation.   Smiley

8.Nxd4 is equal in my opinion. But since we had already found a small plus for White, this isn't tragic for the repertoire. 

But there is still 3...Nf6 4.0-0 Bc5 =. 

Our line against the Jaenisch doesn't work; Black is fine.

And then there is 3...a5, of course.   

Not really a surprise, there is no lasting plus for White.
  
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Re: Spanish repertoire
Reply #266 - 09/29/11 at 00:04:06
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It's a pitty Vishy Anand didn't take part in developing ChessPub's Ruy Lopez, Jänisch repertoire. It seams to be his loss. We have at least +=.  Grin
  

What kind of proof is that?
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Re: Spanish repertoire
Reply #265 - 09/28/11 at 22:47:23
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Here's an update of the file.
  

SpanishRepertoire_001_001.pgn ( 33 KB | Downloads )

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Re: Spanish repertoire
Reply #264 - 09/28/11 at 17:44:42
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It's gone into hibernation for some time now. It would need some small vitamin injection.
  

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Re: Spanish repertoire
Reply #263 - 09/28/11 at 14:29:38
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I just stumbled upon this project, and I love the idea!

I've read several previous pages and downloaded the "Chesspub Spanish repertoire" that TN attached. 

Is there a direction the main group is following now that could use a bit of help?  I'm not a Spanish player generally, but several of my students play it.
  
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Re: Spanish repertoire
Reply #262 - 09/28/11 at 10:55:41
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In my database there are 362 games with 4.c3 (score 56,8%) and 235 games with 4.0-0 (score 57,7).
The main continuaion according to my database is 4.c3 Ba5 5.0-0 Nge7 6.Na3 see Balogh-Sedlak, HUN 2011

Perhaps White also can be more direct aiming for the e5-pawn:
4.c3      4...Be7 5.Bxc6 dxc6 6,Nxe5
     4...Ba5 5.Bxc6 dxc6 6.Nxe5 Qe7 7.d4 f6 8.Nc4 Qxe4+ 9.Ne3
                5...bxc6 6.Nxe5 Qe7 7.d4 f6 8.Nc4 Qxe4+ 9.Ne3      
     4...Ba5 5.a4 a6 6.Bxc6 bxc6 7.Nxe5 Qe7 8.d4 f6 9.Nc4 Qxe4 10.Ne3
                            6...dxc6 7.Nxe5 Qe7 8.d4 f6 9.Nc4 Qxe4 10.Nx3
     
and White semas to have a nice position in all three (five) variations.

Edit: 1e4 e5 2.Nf3 Nc6 3.Bb4 Bb5
  

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Re: Spanish repertoire
Reply #261 - 09/23/11 at 18:20:25
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Stefan Buecker wrote on 07/24/11 at 20:16:20:
Göran wrote on 07/24/11 at 19:53:25:
What do you think about 3...Bb4

Discussed in Bernhard Lach: Spanisch - Die Alapin-Variante 1.e4 e5 2.Sf3 Sc6 3.Lb5 Lb4! from 1995

Slightly worse than 3...Rb8.

I have changed my mind. 3...Bb4 seems at least as good as 3...Rb8.
  
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Re: Spanish repertoire
Reply #260 - 09/22/11 at 09:57:43
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Markovich wrote on 09/02/11 at 14:23:03:
kylemeister wrote on 09/01/11 at 19:23:30:
I had the same thought re the Ponziani, and the impression that 8. Nxd4 (possible even in the Ponz version) is a serious try.


I saw this move in my data base and wasn't sure what to think about it, but I think you're right that it
deserves serious investigation. 

I might have done more, but then thought I should show some respect and await the results of this serious investigation.   Smiley
« Last Edit: 09/22/11 at 11:01:42 by Stefan Buecker »  
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Re: Spanish repertoire
Reply #259 - 09/21/11 at 18:02:41
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Maybe a jump to a more mainstream line could reinvigorate the discussion.
  
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Re: Spanish repertoire
Reply #258 - 09/21/11 at 15:43:33
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Somehow our work on this project has fallen off.
  

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Re: Spanish repertoire
Reply #257 - 09/21/11 at 14:34:40
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No more ideas? Other Spanish lines, like the Bird e.g.?
  
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Re: Spanish repertoire
Reply #256 - 09/02/11 at 14:23:03
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kylemeister wrote on 09/01/11 at 19:23:30:
I had the same thought re the Ponziani, and the impression that 8. Nxd4 (possible even in the Ponz version) is a serious try.


I saw this move in my data base and wasn't sure what to think about it, but I think you're right that it
deserves serious investigation.
  

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Re: Spanish repertoire
Reply #255 - 09/01/11 at 19:23:30
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I had the same thought re the Ponziani, and the impression that 8. Nxd4 (possible even in the Ponz version) is a serious try.
  
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Re: Spanish repertoire
Reply #254 - 09/01/11 at 18:55:45
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Yes, thanks.  Stefan pointed that out too.  6..Nd5 is turning out to be a real frustration.  

Someone may have pointed this out already, but after 7.0-0 Be7, White is up a move on a line of the Ponz.  One would think that would give White a chance at some kind of an edge.  But I suppose the Bb5 isn't optimally placed.

  
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Re: Spanish repertoire
Reply #253 - 09/01/11 at 02:35:54
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LeeRoth wrote on 08/30/11 at 19:17:35:
After 1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5 I'd prefer to play 7.0-0, taking advantage of the position of the Knight to avoid the check on b4.  Vass gave 7..Be7 8.cxd4 d6 9.Nc3 Be6 (9..Nxc3 10.bxc3 looks profitable for White) 10.Qb3 Nxc3 11.Qc3 Bd5!? (11..0-0 12.Bxc6 bxc6 13.Qxc6 Rb8 gives Black some compensation but it doesn't look like its enough; 11..Bd7 leaves Black passive) 12.Bc4 Bc4 13.Qxc4 0-0 14.Be3 a5 which he evaluated as equal, but I wonder if this is the case.  If we go a little further 15.Rac1 d5 16.Qc2 Qd7 17.a3 looks natural, when I think White should have a slight pull.


But see #238 above.
  

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Re: Spanish repertoire
Reply #252 - 08/31/11 at 14:18:15
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Vass wrote on 08/31/11 at 11:51:13:
So we agree that 6...; Nd5!? after 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 gives black better chances for equality. Then we have to propose a good way for achieving += against it. LeeRoth in his last post gave an idea with 15. Rac1. And Stefan gave a good idea with 9.Nbxd2!? (after 1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5 7.cxd4 Bb4+ 8.Bd2 Bxd2+).
I think we'll have to agree that white has a small edge here (about +=/= or so) and therefore we have to stop here.
As for 6... Ne4, I think Stefan in his last post gave some good options for white for +=.  Wink


Yes, Stefan gave some good options for white after 6...Ne4  and besides White still has the obvious 7.Qe2 += (at least), which scores heavily in whites favour in the statistics. Therefore 3...f5! Wink
  
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Re: Spanish repertoire
Reply #251 - 08/31/11 at 11:51:13
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So we agree that 6...; Nd5!? after 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 gives black better chances for equality. Then we have to propose a good way for achieving += against it. LeeRoth in his last post gave an idea with 15. Rac1. And Stefan gave a good idea with 9.Nbxd2!? (after 1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5 7.cxd4 Bb4+ 8.Bd2 Bxd2+).
I think we'll have to agree that white has a small edge here (about +=/= or so) and therefore we have to stop here.
As for 6... Ne4, I think Stefan in his last post gave some good options for white for +=.  Wink
  
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Re: Spanish repertoire
Reply #250 - 08/30/11 at 20:17:11
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@LeeRoth: My impression is that 7.0-0 is too slow. We had discussed this in reply #242; after 12...dxe5 13.dxe5 Bxc4 14.Qxc4 Qc8 and an eventual Qe6 Black stands firm. 

SWJediknight wrote on 08/30/11 at 19:39:36:
I previously considered 6...Ne4 to be better, as here 7.cxd4 Bb4+ probably equalises fully, but upon closer inspection 7.Qe2 probably gives White some advantage, e.g. 7...d5 8.exd6 Bf5 9.Bxc6+ bxc6 10.dxc7 Qxc7 11.cxd4 Bb4+ 12.Bd2, and considering that Black now has to take time out with 12...Qe7 or 12...Be7, Black has some, but not full, compensation (+=). 

In replies #189 (me) and #192 (Vass) we had discussed 8...0-0 9.dxc7 Qe7 which gave White only a very very small plus. 

After 6...Ne4 now I believe 7.cxd4 is White's best chance. I'll give some sample lines, none of them really forced. But to reach full equality isn't an easy task for Black: 7...Bb4+

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *

(a) 8. Kf1 (the weakest of the three replies) 8...a6 9.Bd3 d5 10.exd6 Nf6 (10...Nxd6? 11.d5 idea 12.Qa4+) 11.dxc7 Qxc7 12.a3 Be7 13.Nc3 Be6 14.Be3 Rd8 15.h3 0-0 16.g3 b5 17.Kg2 Qb7 18.Kh2 Rfe8 19.Re1 Qd7 20.Bf1 Nd5 21.Bg2 +=; Black has some compensation for the pawn. 

(b) 8.Bd2 Nxd2 9.Nbxd2 a6 10.Ba4 0-0 11.0-0 d6 12.Bxc6 Bxd2 13.Qxd2 bxc6 14.Qc3 +=. 

(c) 8.Nbd2 0-0 9.0-0 d5 10.a3 Be7 11.Bd3 Bf5 12.Qc2 Nxd2 13.Bxd2 Bxd3 14.Qxd3 a5 15.Ne1 += with ideas like f2-f4. With his passive Be7 and weakened q-side, Black hasn't equalized.
  
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Re: Spanish repertoire
Reply #249 - 08/30/11 at 19:39:36
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I agree that 7.cxd4 Bb4+ 8.Bd2 Bxd2+ 9.Nbxd2 probably gives White a small edge, e.g. 9...0-0 10.0-0 d6 11.Rc1.  I can't find anything to add to LeeRoth's 7.0-0 suggestion, White does seem to get a "niggle" there too.

I previously considered 6...Ne4 to be better, as here 7.cxd4 Bb4+ probably equalises fully, but upon closer inspection 7.Qe2 probably gives White some advantage, e.g. 7...d5 8.exd6 Bf5 9.Bxc6+ bxc6 10.dxc7 Qxc7 11.cxd4 Bb4+ 12.Bd2, and considering that Black now has to take time out with 12...Qe7 or 12...Be7, Black has some, but not full, compensation (+=). 
  
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Re: Spanish repertoire
Reply #248 - 08/30/11 at 19:17:35
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After 1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5 I'd prefer to play 7.0-0, taking advantage of the position of the Knight to avoid the check on b4.  Vass gave 7..Be7 8.cxd4 d6 9.Nc3 Be6 (9..Nxc3 10.bxc3 looks profitable for White) 10.Qb3 Nxc3 11.Qc3 Bd5!? (11..0-0 12.Bxc6 bxc6 13.Qxc6 Rb8 gives Black some compensation but it doesn't look like its enough; 11..Bd7 leaves Black passive) 12.Bc4 Bc4 13.Qxc4 0-0 14.Be3 a5 which he evaluated as equal, but I wonder if this is the case.  If we go a little further 15.Rac1 d5 16.Qc2 Qd7 17.a3 looks natural, when I think White should have a slight pull.
  
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Re: Spanish repertoire
Reply #247 - 08/30/11 at 11:02:27
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Stefan Buecker wrote on 08/30/11 at 09:00:21:


Edit: 1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5 7.cxd4 Bb4+ 8.Bd2 Bxd2+ (so far Vass in reply #168) 9.Nbxd2 seems relatively best which may or may not give White a slight plus against 6...Nd5.


I would agree on this. Don't know how much of an edge it is, though.
  
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Re: Spanish repertoire
Reply #246 - 08/30/11 at 09:00:21
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My last comment wasn't meant to kill a possible dialogue on 4.c3 Nf6 5.0-0. If somebody believes that an advantage can be proved, I'd be willing to listen. 

Do we all agree so far that 1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5 gives Black a solid position? It seems difficult to break through here. Against the more common 6...Ne4 White has a choice of replies, a += may be possible. But personally I'd prefer 6...Nd5. Then there is the interesting 6.cxd4!? (instead of 6.e5) Bb4+ when 7.Nbd2 gives White full compensation (similar to the "Italian" Pomtow Attack, discussed elsewhere in this forum), and alternatives 7.Kf1 or 7.Nc3 or 7.Bd2 are hardly worse. Those moves are all playable. But "compensation" is not the same as +=. 

Edit: 1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5 7.cxd4 Bb4+ 8.Bd2 Bxd2+ (so far Vass in reply #168) 9.Nbxd2 seems relatively best which may or may not give White a slight plus against 6...Nd5.
  
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Re: Spanish repertoire
Reply #245 - 08/27/11 at 18:15:46
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Zwischenzugzwang wrote on 08/26/11 at 21:38:36:
Quote:
Checking minor lines makes sense, when we have nothing promising in the traditional lines.

I've checked the last 100 or so postings of this thread and didn't find any research / analysis of the "main line" 3...Bc5 4.c3 Nf6 5.0-0 0-0 6.d4 Bb6 7.Bg5 (or did I simply miss it??), so I can't follow your statement  Sad.

This line ("The Complex 5.c3") is covered by Sokolov on twelve pages at the end of The Ruy Lopez Revisited. His main line ends in a roughly balanced position (p. 262). Conclusion: "This is a complex line with many possibilities for both sides. I personally feel that White may have the best chances for an advantage in the line with 8.Qd3 or 7...h6 8.Bh4 d6 9.Qd3. However, over the years plenty of different possibilities have been tried and there is still a lot to explore."

Qd3 is discussed in detail, e.g. on p. 257 Sokolov presents Topalov - Vallejo Pons, Dos Hermanas rapid 2008 ("Black gradually equalized and drew"). - I don't think that it was a mistake to look at 4.c3 Nf6 5.d4. It has no less main line status as c3/0-0. I had studied the "complex" line and don't believe that White can prove an advantage.
  
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Re: Spanish repertoire
Reply #244 - 08/26/11 at 21:38:36
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Quote:
Checking minor lines makes sense, when we have nothing promising in the traditional lines.

I've checked the last 100 or so postings of this thread and didn't find any research / analysis of the "main line" 3...Bc5 4.c3 Nf6 5.0-0 0-0 6.d4 Bb6 7.Bg5 (or did I simply miss it??), so I can't follow your statement  Sad.

Anyway, as you, Stefan, and others have contributed much more to this thread than me, I don't see a reason to start any dispute over this.

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Zwischenzugzwang
  

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Re: Spanish repertoire
Reply #243 - 08/26/11 at 20:25:10
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Zwischenzugzwang wrote on 08/26/11 at 13:43:10:
Greet's "discovery" 4.Nxe5 was published in 2006, five years ago, and it has not really caught on. The only +2500 player who used it since then is Radulski, as mentioned in an earlier posting, so I wonder if checking it really makes sense. [...]

Checking minor lines makes sense, when we have nothing promising in the traditional lines. The move 4.Nxe5 is older (1884), but Greet did suggest new ideas. That popular moves are better than rare moves may be true for 80% of the cases, but how can you find the occasional exception without actually analyzing? 

Radulski - Groetz, Le Touquet 2007: (1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5) 4.Nxe5 Qe7 5.Nf3 Qxe4+ 6.Be2 Nd4 7.Nxd4 Qxd4 8.0-0 d5 (improving upon Greet's analysis) 9.d3 (9.c3 Qf6 10.d4 Bd6 =) 9...Qf6 (9...Ne7 10.Be3!? Qxb2 11.Bxc5 Qxa1 12.d4 sacrifices the exchange, with good compensation) 10.c4 dxc4 11.Nc3 cxd3 12.Bxd3 Ne7 13.Ne4 Qb6 (Radulski - Groetz, Le Touquet 2007), and here 14.Nxc5 (instead of 14.a4) 14...Qxc5 15.Be3 Qd5 16.Rc1 c6 17.Bc5 +/- would have given White more than compensation for the pawn. 

However, 9...Bd6! 10.c4 Nf6 11.Nc3 c6 looks critical, e.g. 12.Bf3 0-0 13.cxd5 Nxd5 (13...cxd5 14.Nb5) 14.Nxd5 cxd5 15.Qb3 Be6 16.g3 and White has only a tiny plus.
  
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Re: Spanish repertoire
Reply #242 - 08/26/11 at 17:21:54
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Stefan Buecker wrote on 08/26/11 at 07:03:41:
Markovich wrote on 08/26/11 at 01:50:19:
Another idea against 3...Bc5 is 4.Nc3, transposing into the Four Knights. But leaving that aside for the time being, I wonder if we're underrating White's chances in 3...Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5 7.0-0 Be7 8.cxd4 d6 9.Nc3 Be6 10.Qb3 Nxc3 11.Qxc3 Bd5 12.Bc4. Doesn't 12...dxe5 13.dxe5 Bxc4 14.Qxc4 produce some advantage for White?

I don't think so, after 14...Qc8 = Black plans an occasional Qe6 (or will just develop). Maybe 13.Nxe5 is slightly better, but the resulting position should not be difficult to defend. 



Yeah, my first thought was that the isolated e-pawn might mean something in case of that, but it looks defensible.
  

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Re: Spanish repertoire
Reply #241 - 08/26/11 at 13:43:10
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Greet's "discovery" 4.Nxe5 was published in 2006, five years ago, and it has not really caught on. The only +2500 player who used it since then is Radulski, as mentioned in an earlier posting, so I wonder if checking it really makes sense. Of course, one could argue that one avoids "heavy theory", but is the absolute amount of theory with alternatives in the Classical really so much more?

I've nothing against early deviations from theory, and I'd have welcomed it if this move had gotten more popularity, but as that hasn't happened, I still propagate 4.c3.

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Re: Spanish repertoire
Reply #240 - 08/26/11 at 13:10:01
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Zwischenzugzwang wrote on 08/26/11 at 07:40:29:
It was known before (at least since 1958, Wade-Redolfi, München ol), but there are quite some high level games with it since 1999, the latest outing on +2600 level in 2010. So what about covering this line?

I'd say let's first finish the research of 4.Nxe5.
  

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Re: Spanish repertoire
Reply #239 - 08/26/11 at 07:40:29
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Hello everybody!

SWJediknight wrote on 08/25/11 at 08:44:44:

[1.e4 e5 2.Nf3 Nc6 3.Bb5] Bc5 4.0-0 Nf6 5.c3, I'm not sure if theory has advanced significantly since Markovich's articles on the line back in 1999:
http://correspondencechess.com/campbell/hard/h990621.htm
The critical line was considered to be 5...0-0 6.d4 Bb6 7.Bg5 h6 8.Bh4 d6 in those days, where Black retains active piece play and often gets counterplay on the kingside, but White might get a small edge by inflicting weaknesses on Black's queenside structure.


I always liked this line, but haven't looked at it for ages. According to my data, the main theoretical development since then is 9.Qd3, which is not included in the article mentioned above. It was known before (at least since 1958, Wade-Redolfi, München ol), but there are quite some high level games with it since 1999, the latest outing on +2600 level in 2010. So what about covering this line?

Re Exchange Variation: In a certain way 4.Bxc6 is a logical move after 3...a6, but it's not really thematic, isn't it? If somebody wants to play Spanish, but doesn't like to get involved into all this complicated Closed lines, I think that Greet's suggestion of 5.Qe2 is the better choice, as it is more "spanish" than the Exchange, so it should be a better "first step" to a "grown-up" Spanish repertoire. As Greet himself mentions, after 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6, White can postpone Qe2 for one move and continue 5.0-0, and only play it after 5...Be7, whereas after other fifth moves by Black, we get the Open, Möller or Archangelsk variation.

Best regards,

Zwischenzugzwang
  

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Re: Spanish repertoire
Reply #238 - 08/26/11 at 07:03:41
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Markovich wrote on 08/26/11 at 01:50:19:
Another idea against 3...Bc5 is 4.Nc3, transposing into the Four Knights. But leaving that aside for the time being, I wonder if we're underrating White's chances in 3...Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5 7.0-0 Be7 8.cxd4 d6 9.Nc3 Be6 10.Qb3 Nxc3 11.Qxc3 Bd5 12.Bc4. Doesn't 12...dxe5 13.dxe5 Bxc4 14.Qxc4 produce some advantage for White?

I don't think so, after 14...Qc8 = Black plans an occasional Qe6 (or will just develop). Maybe 13.Nxe5 is slightly better, but the resulting position should not be difficult to defend. 

@TN. From my earlier analysis on 3...Bc5 I only remembered that 4.Nxe5 Qg5 5.Ng4 was interesting. I had forgotten that Greet gave 4...Nxe5 as his main line: 5.d4 c6 6.Be2 Bd6 7.dxe5 Bxe5 8.f4 Bc7 9.Nc3 Ne7 10.Be3 0-0 11.Qd3 d5 12.0-0-0 Re8 13.f5 (so far Greet) and here he overlooked 13...b5! which is equal, at least. - However, 11.Qd2! is an improvement: 11...Re8 12.0-0-0 d5 13.Bc5! (now pawn f4 is protected) or 11...Ba5 12.0-0-0 d5 13.a3! (13.Bc5 b6 14.Ba3 b5!) 13...Qc7 (or 13...dxe4 +0.30) 14.Bd4 Bxc3!? (14...dxe4 15.Be5 +=) 15.Qxc3 Qxf4+ 16.Kb1 Qh6 17.g4 b6 18.g5 Qg6 19.Be5 dxe4 20.Bd6 Qe6 21.Bc4 Nd5 22.Bxd5 cxd5 23.Bxf8 Kxf8 24.h4 +=. 

After 4...Qg5 5.Ng4 h5 6.Bxc6 dxc6 7.d4 Bxg4 8.Bxg5 Bxd1 9.dxc5 Bxc2 (an internet game), Greet on p. 111 recommended 10.Kd2! Bxb1 11.Raxb1 f6 12.Be3 0-0-0+ 13.Ke2[/b] ("clearly better for White", Greet). But 13...f5 equalizes on the spot, and 13.Kc3 f5! is also equal. This line was the reason why I mentioned 4...Qg5 as critical in my last post. - But looking more closely, I believe that 10.Nc3! (instead of 10.Kd2) 10...f6 11.Be3 0-0-0 12.Rc1 Bd3 13.f3 Ne7 14.Kf2 may be += because of White's pawn majority.
  
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Re: Spanish repertoire
Reply #237 - 08/26/11 at 01:50:19
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Another idea against 3...Bc5 is 4.Nc3, transposing into the Four Knights. But leaving that aside for the time being, I wonder if we're underrating White's chances in 3...Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5 7.0-0 Be7 8.cxd4 d6 9.Nc3 Be6 10.Qb3 Nxc3 11.Qxc3 Bd5 12.Bc4. Doesn't 12...dxe5 13.dxe5 Bxc4 14.Qxc4 produce some advantage for White?
  

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Re: Spanish repertoire
Reply #236 - 08/25/11 at 21:49:01
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@fling

No worries. However I think if we discuss the specifics of the Exchange Variation it will only delay our coverage of 4.Ba4. Then again my post on the Exchange Spanish for White has helped bring the thread back to life.  Wink

@Markovich

For a serious repertoire it is important to have a secondary option in reserve. From my point of view, the Exchange is the most logical choice since you can get it on the board on move 4, unlike White's other options against 3...a6. I do think that discussion on the Exchange Spanish in this thread should be limited to which game would be the most suitable 'model game' against a given major variation by Black. 

By covering the Exchange Spanish briefly now, players will be able to start using the repertoire as White once all of Black's 3rd move alternatives to 3...a6 are covered, compared to having to wait until after the work on 3...a6 (i.e. most of the work) is complete. 

@Stefan Buecker

It's interesting that you second my suggestion of 4.Nxe5, however I think 4...Nxe5 is more critical, based on the analysis in Greet's book. 


  

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Re: Spanish repertoire
Reply #235 - 08/25/11 at 19:21:23
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The big advantage of including the Exchange Variation would be that we could solve 3...Bc5 by playing 4.Bxc6 dxc6 5.d3 =. 

Seriously, I don't believe that 3...Bc5 4.c3 gives White much, and I have the additional problem that I have a strong new idea against 4.0-0 which I don't want to give away. So I'd be in the bad position to argue with second best lines. Probably we'll agreee only in 2013 that it's basically equal.

Therefore I propose a slightly unorthodox approach against 3...Bc5. I understand that our repertoire is meant to be ultra-orthodox (& often with a long beard), but there exists a nice, rarer alternative in 4.Nxe5!? Qg5 5.Ng4. Look in your database, Markovich, and you'll see that some strong 2500 players have scored heavily with the line (admittedly in less than ten games). Objectively it is +0.20 at best (or maybe just equal), but do you seriously expect a significant plus for White against Bc5?
  
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Re: Spanish repertoire
Reply #234 - 08/25/11 at 17:37:37
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I'm not sure that I support the idea that we should give any consideration to the Exchange Variation.  It's a repertoire, after all.  I don't think that there's much doubt that theoretically, 4.Ba4 is the more challenging move.  So why divert ourselves?

If we follow that principle we'll soon find some people saying that we should say something about 5.Qe2.

At least we should finish the whole repertoire and leave it to interested parties to go back and say something about 4.Bxc6.
  

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Re: Spanish repertoire
Reply #233 - 08/25/11 at 16:02:57
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It could be mentioned that 6...Bg4 is a decades-old main line.
  
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Re: Spanish repertoire
Reply #232 - 08/25/11 at 13:50:22
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TN wrote on 08/25/11 at 12:41:34:
@fling

I was looking for games that showed the key ideas clearly for White rather than the most theoretically relevant games. If you think there is a game in a particular variation that better exemplifies the key ideas then please share it. 



It wasn't meant as critique, just as a start for a discussion. The move 14. a4 in your main line has been doing rather well, statistically speaking, and it is an interesting idea. I have to say I like Marin's idea of 6 ...Bg4, rather than 6 ...exd4 and have therefore looked it more. It seems a bit more combative. I haven't access to any games right now, but I'll share what I can find when I can.
  
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Re: Spanish repertoire
Reply #231 - 08/25/11 at 12:41:34
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@fling

I was looking for games that showed the key ideas clearly for White rather than the most theoretically relevant games. If you think there is a game in a particular variation that better exemplifies the key ideas then please share it. 

@SWJediKnight

I think that 5...Bg4 6.h3 is slightly better for White regardless of which piece he places on h5. On the other hand the Worrall is completely harmless theoretically, though that doesn't mean you can't do well with it as Tiviakov amongst others have shown.
  

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Re: Spanish repertoire
Reply #230 - 08/25/11 at 11:59:10
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After 4.Bxc6 dxc6 we also have 5.0-0 Bg4 to reckon with.  6.h3 h5 is sounder than the version in the Deferred Steinitz, and can result in a quick queen swap with a shattered white kingside offset by the bishop-pair and Black's devalued queenside majority (e.g. 7.d3 Qf6 8.Be3 Bxf3 9.Qxf3 Qxf3 10.gxf3), and Black also has double-edged ideas like ...Be6 and pushing the g-pawn.  Black also has the pawn sac 6...Bh5!? 7.g4 Bg6 8.Nxe5 Qh4.  My impression is that Black is doing alright in those lines (indeed some sources consider the 5...Bg4 6.h3 h5 line to be the most critical test of 4.Bxc6 and 5.0-0), though I can't be sure that Black equalises totally.

I recall that Andrew Greet's recommendation with an early Qe2 still represents another decent alternative to the absolute main lines if White doesn't fancy the Exchange Lopez.
  
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Re: Spanish repertoire
Reply #229 - 08/25/11 at 10:28:35
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TN wrote on 08/24/11 at 10:00:22:
Quote:
I'd like to suggest that against 3...a6 we have a brief outline of how to play 4.Bxc6 as well as the most popular move, 4.Ba4. Gustafsson stated on his DVD that he thought the Exchange was as good as try for an advantage as 4.Ba4. Admittedly I find this opinion a bit peculiar, but Gustafsson knows much more about the Spanish than I do. A model game for White against each major answer to the Exchange Variation should be sufficient for our purposes. 

Of course we still have the remaining 3rd move alternatives to examine, but I recommend that we cover an alternative to the absolute main lines briefly so that players who do not like 4.Ba4 Nf6 5.0-0 Be7 6.Re1 for whatever reason will still find the ChessPub Forum coverage useful.


I have done this; see the PGN file.


I had a look at this, and the main line after 5 ...f6 looks a bit better for White after your proposed 14.a4 Ne7, which I can't find mentioned in Johnsen & Johannesen's The Ruy Lopez. However, I think that 14 ...Kb7 looks like an improvement. Even so, Marin's recommended 6 ...Bg4 looks interesting, and it seems like his line improves on the given game Smeets-Sokolov, 2011. 10 ...Bd6 is natural for Black, in order to keep the rook free and not defending e5. I can't find anything particular for White in this position.


  
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Re: Spanish repertoire
Reply #228 - 08/25/11 at 08:44:44
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1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5/Ne4 is the same as 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 Nf6 5.e5 Nd5/Ne4, with the additional moves Bb5 for White and ...Bc5 for Black.  If Black chooses ...Nd5 I think the extra moves are in White's favour, but I doubt this if Black opts for ...Ne4.  For example, after 1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5 7.cxd4 Bb4+ 8.Bd2 Bxd2+ 9.Nbxd2 0-0 10.0-0 d6 11.Rc1 White may have a small edge.  However, 6...Ne4 puts pressure on d2: 7.cxd4 Bb4+ 8.Nbd2 (8.Bd2 allows Black to grab the bishop-pair, with approximate equality) 8...0-0 9.0-0 d5 and Black is close to equality, with ideas of ...f5 to generate some play on the kingside.

Re. 3...Bc5 4.0-0 Nf6 5.c3, I'm not sure if theory has advanced significantly since Markovich's articles on the line back in 1999:
http://correspondencechess.com/campbell/hard/h990621.htm
The critical line was considered to be 5...0-0 6.d4 Bb6 7.Bg5 h6 8.Bh4 d6 in those days, where Black retains active piece play and often gets counterplay on the kingside, but White might get a small edge by inflicting weaknesses on Black's queenside structure.
  
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Re: Spanish repertoire
Reply #227 - 08/25/11 at 00:58:00
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If this results in nothing we'll have to turn to 3...Bc5 4.O-O Nf6 4.c3. I am not convinced at beforehand that Black can equalize here. But I am under the impression that it's too early for this drastic measure.
At the moment I lack the energy to look at TN's summary. Even my overview of 3...f5 is not entirely complete. I intend to repair this shortcomings on short term.
  

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Re: Spanish repertoire
Reply #226 - 08/24/11 at 22:02:28
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TN wrote on 08/24/11 at 20:20:36:
So is this project dead because of 3...Bc5?  Sad

I have ordered a copy of the Ivanov/Kulagin and might add a few details on 3...f5 later. The Tseitlin/[Glazkov] book gave many valuable hints; Sokolov is digging deep, but often leaves out semi-plausible stuff (which is sometimes underestimated). 

3...Bc5 4.c3 Nf6 5.d4 exd4 (5...Bb6? 6.Nxe5!) 6.e5 Ne4 and 6...Nd5!? are both unsolved. In both cases probably 7.cxd4 is White's best attempt, and it might be argued that White has a slight initiative. 

1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3. In the case of 4...f5!?, 5.d4 fxe4 6.Bxc6 dxc6 7.Nxe5 Bd6 8.0-0 Nf6 9.Nd2 was the line proposed by Markovich in reply #149, and so far nobody has questioned this line. But I find only two games, both drawn. For example 9...Qe7 10.Re1 Nxe5 (M.R. Smith - Baudry, Warren 1986). And if 10.f3 exf3 11.Ndxf3 Be6, Black's position seems solid. - But 4.c3 f5 5.exf5! (mention by SWJediknight) may indeed be better, +=. 
  
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Re: Spanish repertoire
Reply #225 - 08/24/11 at 21:26:12
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SWJediknight wrote on 08/24/11 at 21:08:51:
I thought White was meant to be a bit better after 3...Bc5 4.c3 f5 5.exf5, while 4...Nf6 is currently looking dodgy due to the 5.Nxe5 line (Markovich)- does the objection lie in 4...Nge7 or 4...Qf6?


If you look at the PGN file I posted you'll see that the 5.Nxe5 arises after 3...Bc5 4.0-0 Nf6 (3...Nf6 4.0-0 Bc5 in the file) 5.Nxe5. And based on the current analysis it looks like this may not be enough for an edge either after 5...Nxe4. After 3...Bc5 4.c3, the problem is in 4...Nf6 when according to the PGN files 5.d4 ed4 6.e5 Nd5 gives Black equality.

Maybe we should consider 4.Nxe5 which was suggested by Greet in 'Play the Ruy Lopez', though since only one decent player (Radulski) has played it since the publication of the book I don't like our chances of proving an edge for White here.

The other possibility is to leave 3...Bc5 and move on to other lines. It would be nice to have some analysis proving += after 3...d6, 3...g6 and 3...Nd4.
  

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Re: Spanish repertoire
Reply #224 - 08/24/11 at 21:08:51
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I thought White was meant to be a bit better after 3...Bc5 4.c3 f5 5.exf5, while 4...Nf6 is currently looking dodgy due to the 5.Nxe5 line (Markovich)- does the objection lie in 4...Nge7 or 4...Qf6?
  
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Re: Spanish repertoire
Reply #223 - 08/24/11 at 20:20:36
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So is this project dead because of 3...Bc5?  Sad
  

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Re: Spanish repertoire
Reply #222 - 08/24/11 at 10:00:22
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Quote:
I'd like to suggest that against 3...a6 we have a brief outline of how to play 4.Bxc6 as well as the most popular move, 4.Ba4. Gustafsson stated on his DVD that he thought the Exchange was as good as try for an advantage as 4.Ba4. Admittedly I find this opinion a bit peculiar, but Gustafsson knows much more about the Spanish than I do. A model game for White against each major answer to the Exchange Variation should be sufficient for our purposes. 

Of course we still have the remaining 3rd move alternatives to examine, but I recommend that we cover an alternative to the absolute main lines briefly so that players who do not like 4.Ba4 Nf6 5.0-0 Be7 6.Re1 for whatever reason will still find the ChessPub Forum coverage useful.


I have done this; see the PGN file.
  

SpanishRepertoire_001.pgn ( 31 KB | Downloads )

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Re: Spanish repertoire
Reply #221 - 08/19/11 at 17:13:53
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Stefan Buecker wrote on 08/19/11 at 17:07:07:
TN wrote on 08/19/11 at 16:59:04:
Of course we still have the remaining 3rd move alternatives to examine, [...]

In your file 3...h6 was missing, by the way. Just saying...


Grin
  

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Re: Spanish repertoire
Reply #220 - 08/19/11 at 17:07:07
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TN wrote on 08/19/11 at 16:59:04:
Of course we still have the remaining 3rd move alternatives to examine, [...]

In your file 3...h6 was missing, by the way. Just saying...
  
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Re: Spanish repertoire
Reply #219 - 08/19/11 at 16:59:04
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I'd like to suggest that against 3...a6 we have a brief outline of how to play 4.Bxc6 as well as the most popular move, 4.Ba4. Gustafsson stated on his DVD that he thought the Exchange was as good as try for an advantage as 4.Ba4. Admittedly I find this opinion a bit peculiar, but Gustafsson knows much more about the Spanish than I do. A model game for White against each major answer to the Exchange Variation should be sufficient for our purposes. 

Of course we still have the remaining 3rd move alternatives to examine, but I recommend that we cover an alternative to the absolute main lines briefly so that players who do not like 4.Ba4 Nf6 5.0-0 Be7 6.Re1 for whatever reason will still find the ChessPub Forum coverage useful.
  

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Re: Spanish repertoire
Reply #218 - 08/19/11 at 16:52:25
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TN wrote on 08/19/11 at 16:38:17:
I have a PGN file with all of the analysis from this thread so far. I have attached it to this post.

Excellent work, TN, thanks!
  
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Re: Spanish repertoire
Reply #217 - 08/19/11 at 16:38:17
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I have a PGN file with all of the analysis from this thread so far. I have attached it to this post.

Unfortunately I won't be able to keep up the analysis/maintenance work as I have a tournament over the next week or two. 

  

SpanishRepertoire.pgn ( 19 KB | Downloads )

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Re: Spanish repertoire
Reply #216 - 08/19/11 at 16:13:58
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TN wrote on 08/19/11 at 06:44:47:
This looks fairly convincing to me. Of course Black has a few alternatives, but I doubt they change the evaluation of the position. 

I suggest that we look at the 3...g6 (Smyslov) variation now. I don't have any books with me at the moment, but have a note in my files that Fressinet-Jussupow, blitz 2007 is a route to an edge for White. However Sokolov's 5...a6 (against Kosintseva in 2010) looks better, since after the natural moves 6.Ba4 Bg7 7.cd4 b5 8.Bb3 Nge7 we have been tricked into a line of the Cozio while Black has dodged 3...Nge7 4.c3. I also have Psakhis-Smyslov, Rostov on Don 1993, as being better for White after 13...b5, but looking at it again I can't see why Black is worse.

About the latter position, Sokolov writes: "13...b5 and the position was sharp in Psakhis - Smyslov, Rostov on Don 1993, though with a pawn majority on the kingside and the Black king looking somewhat more vulnerable, White should have the better chances." In the ChessBase database, the comment by Wedberg also has it as 13.Qe3 +=. 
However, I like the gambit 4.d4 exd4 5.c3 more. 

Sorry, but in the Cordel Variation 3...Bc5 = I see no glimmer of hope.
  
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Re: Spanish repertoire
Reply #215 - 08/19/11 at 14:37:35
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TN, would you prepare a pgn file on the Cozio along the lines of the one that MNb has prepared on the Jaenisch?  I don't mind moving on to Smyslov's, but I note that we have yet to crack the hard nut of the Classical.
  

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Re: Spanish repertoire
Reply #214 - 08/19/11 at 06:44:47
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This looks fairly convincing to me. Of course Black has a few alternatives, but I doubt they change the evaluation of the position. 

I suggest that we look at the 3...g6 (Smyslov) variation now. I don't have any books with me at the moment, but have a note in my files that Fressinet-Jussupow, blitz 2007 is a route to an edge for White. However Sokolov's 5...a6 (against Kosintseva in 2010) looks better, since after the natural moves 6.Ba4 Bg7 7.cd4 b5 8.Bb3 Nge7 we have been tricked into a line of the Cozio while Black has dodged 3...Nge7 4.c3. I also have Psakhis-Smyslov, Rostov on Don 1993, as being better for White after 13...b5, but looking at it again I can't see why Black is worse.

  

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Re: Spanish repertoire
Reply #213 - 08/19/11 at 01:06:42
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TN wrote on 08/18/11 at 17:53:56:
Stefan Buecker wrote on 08/18/11 at 16:22:31:

TN, thanks for your 3...Nge7 4.Nc3 analyses. Sokolov's 2009 book doesn't consider 10.Qd2, he basically says (pp. 141-143) that lines like the following were the reason why he lost his interest in playing the Cozio: (1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4.Nc3 g6 5.d4 exd4 6.Nd5 Bg7 7.Bg5 h6 8.Bf6 Bxf6 9.Nxf6+ Kf8) 10.0-0 Kg7 11.Nd5 d6 12.Bxc6 Nxc6 13.Nxd4 Be6 14.Nb5! Bxd5 15.exd5 Ne5 16.f4 Nd7 17.f5! g5 18.f6+ Nxf6 19.Nd4 "and White gets a devastating attack". 

So if you are right (I haven't checked yet) that 10.Qd2 is only equal, is 10.0-0 the way to go? Sokolov's comment on 10.0-0: "Black has different ways to proceed - and defend, but the position is simply better for White and there is little Black can do to change this verdict."

There are still many open questions regarding 3...Bc5, and even 3...f5 remains playable (+=).


According to my files Black can equalise after 10.0-0 with 10...a6:

A) 11.Ba4 Kg7 12.Nd5 b5 13.Bb3 Nd5 14.ed5 (14.Bd5 Rb8 15.Nd4 Ne7 equal) 14...Na5 15.Qd4 Qf6 16.Qd2 Nb3 17.ab3 c5, equal.

B) 11.Bc6 dc6! 12.e5 c5, unclear.

C) 11.Bc4 Kg7 12.Qd2 (12.Nd5 d6 equal; 12.Nd4!? Ne5 13.Nf3 N7c6 14.Ne5 Qf6 15.Nf7 Rf8 16.e5 Qf4 17.Qd3 b5 18.Bb3 Rf7 19.Bf7 Qf7, equal) 12...Kf6! 13.Qf4 Nf5 14.ef5 (also possible is 14.Bd5 Kg7 15.ef5) 14...g5 with counterplay, for instance 15.Qg4 d5 16.Bd3 Kg7 17.Rae1 h5 18.Qg5 Qg5 19.Ng5 Kf6 20.f4 Bd7. 

I don't have Sokolov's book on me at the moment. I haven't checked this analysis since a year ago so I won't be surprised if there is some big improvement over the above analyses.

Instead of 18.Qxg5+, the retreat 18.Qg3! f6 19.Nh4 gives White a significant plus. More precise seems 15...Kg7 (instead of 15...d5) 16.h4! d5 17.Bd3 h5 18.Qxg5+ (now 18.Qg3 would be harmless: 18...g4 19.Ne5 Qd6) 18...Qxg5 19.hxg5 f6 20.Rae1 fxg5 21.Nxg5 Rf8 (21...Bd7 22.Ne6+ Bxe6 23.Rxe6 +=; 21...Nb4?? 22.Re7+ Kf6 23.Rf7+!! +-) 22.f4 Bxf5 23.Bxf5 Rxf5 24.Ne6+ Kf7 25.Nxc7 Rg8 26.Ne6 += with a slight edge in the ending.
  
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Re: Spanish repertoire
Reply #212 - 08/18/11 at 17:53:56
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Stefan Buecker wrote on 08/18/11 at 16:22:31:
TN wrote on 08/18/11 at 15:45:11:
Please reply if you have any improvements for White or Black over my analyses!  Smiley

TN, thanks for your 3...Nge7 4.Nc3 analyses. Sokolov's 2009 book doesn't consider 10.Qd2, he basically says (pp. 141-143) that lines like the following were the reason why he lost his interest in playing the Cozio: (1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4.Nc3 g6 5.d4 exd4 6.Nd5 Bg7 7.Bg5 h6 8.Bf6 Bxf6 9.Nxf6+ Kf8) 10.0-0 Kg7 11.Nd5 d6 12.Bxc6 Nxc6 13.Nxd4 Be6 14.Nb5! Bxd5 15.exd5 Ne5 16.f4 Nd7 17.f5! g5 18.f6+ Nxf6 19.Nd4 "and White gets a devastating attack". 

So if you are right (I haven't checked yet) that 10.Qd2 is only equal, is 10.0-0 the way to go? Sokolov's comment on 10.0-0: "Black has different ways to proceed - and defend, but the position is simply better for White and there is little Black can do to change this verdict."

There are still many open questions regarding 3...Bc5, and even 3...f5 remains playable (+=).


According to my files Black can equalise after 10.0-0 with 10...a6:

A) 11.Ba4 Kg7 12.Nd5 b5 13.Bb3 Nd5 14.ed5 (14.Bd5 Rb8 15.Nd4 Ne7 equal) 14...Na5 15.Qd4 Qf6 16.Qd2 Nb3 17.ab3 c5, equal.

B) 11.Bc6 dc6! 12.e5 c5, unclear.

C) 11.Bc4 Kg7 12.Qd2 (12.Nd5 d6 equal; 12.Nd4!? Ne5 13.Nf3 N7c6 14.Ne5 Qf6 15.Nf7 Rf8 16.e5 Qf4 17.Qd3 b5 18.Bb3 Rf7 19.Bf7 Qf7, equal) 12...Kf6! 13.Qf4 Nf5 14.ef5 (also possible is 14.Bd5 Kg7 15.ef5) 14...g5 with counterplay, for instance 15.Qg4 d5 16.Bd3 Kg7 17.Rae1 h5 18.Qg5 Qg5 19.Ng5 Kf6 20.f4 Bd7. 

I don't have Sokolov's book on me at the moment. I haven't checked this analysis since a year ago so I won't be surprised if there is some big improvement over the above analyses.
  

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Re: Spanish repertoire
Reply #211 - 08/18/11 at 16:22:31
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TN wrote on 08/18/11 at 15:45:11:
Please reply if you have any improvements for White or Black over my analyses!  Smiley

TN, thanks for your 3...Nge7 4.Nc3 analyses. Sokolov's 2009 book doesn't consider 10.Qd2, he basically says (pp. 141-143) that lines like the following were the reason why he lost his interest in playing the Cozio: (1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 4.Nc3 g6 5.d4 exd4 6.Nd5 Bg7 7.Bg5 h6 8.Bf6 Bxf6 9.Nxf6+ Kf8) 10.0-0 Kg7 11.Nd5 d6 12.Bxc6 Nxc6 13.Nxd4 Be6 14.Nb5! Bxd5 15.exd5 Ne5 16.f4 Nd7 17.f5! g5 18.f6+ Nxf6 19.Nd4 "and White gets a devastating attack". 

So if you are right (I haven't checked yet) that 10.Qd2 is only equal, is 10.0-0 the way to go? Sokolov's comment on 10.0-0: "Black has different ways to proceed - and defend, but the position is simply better for White and there is little Black can do to change this verdict."

There are still many open questions regarding 3...Bc5, and even 3...f5 remains playable (+=).
  
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Re: Spanish repertoire
Reply #210 - 08/18/11 at 15:45:11
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Please reply if you have any improvements for White or Black over my analyses!  Smiley
  

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Re: Spanish repertoire
Reply #209 - 08/18/11 at 10:32:35
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Since there haven't been any posts here for a few days, here is some analysis I have done on the Cozio (3...Nge7). Unfortunately I am not able to find an advantage for White, but the file may still be of interest.

I don't think White has any edge at all in the main line starting with 4.c3, which is why I recommend we analyse 4.Nc3 until we reach some sort of consensus.
  

BeatingtheCozio.pgn ( 4 KB | Downloads )

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Re: Spanish repertoire
Reply #208 - 08/14/11 at 22:15:24
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In the last diagram, White might soon play f3, threatening Ne4. Black will probably avoid it: d6-d5. Then after Bb2 it is difficult for Black not to exchange the bishops (even after Bf6-g5xd2, the two opposite bishops would be two very different animals: one placed on d4, the other sitting idle). 

The PC says it is +0.61, so I am too lazy to study it in more detail now.
  
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Re: Spanish repertoire
Reply #207 - 08/14/11 at 18:28:12
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You are right, your 12.Nd2 looks stronger than my 12.Rb1. Then after 12...Bf5 13.Rb1 Kd7 14.b3 Rhe8+ 15.Kd1 Re7 (or 15...Bh4 16.g3) 16.Re1

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Black only has a slight initiative for the pawn.
But maybe Black might be able to keep the e-file open to hinder the white king reaching the king's side?
  

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Re: Spanish repertoire
Reply #206 - 08/14/11 at 17:44:14
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Zwischenzugzwang wrote on 08/14/11 at 15:48:04:
Hello everybody,

After 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6 Qxf6 7.Qe2 Be7 8.Bxc6 bxc6, Stefan suggests 9.Qxe5 d6 10.Qxf6 Bxf6 11.d3 0-0, and now 12.Nd2N. I wonder if Black has no better move than 11...0-0, as this might just be a waste of time (why would Black be in a hurry to bring the king to the king's side in this position?).

What about 11...Rb8 instead, with the following moves 12.Rb1 Be6 13.b3 and now 13...Bd5? [...]

The idea behind my proposal 12.Nd2 is to avoid the exchange Bc8-g4xf3. 11...Rb8 is interesting - 12.Rb1 Be6 13.b3 (13.Nd2? Bxa2 14.Ra1 Bxb2) 13...Bd5! illustrates that the demolition of White's structure (Bxf3) justifies even a big loss in time (moves Rb8, Be6-d5). 

Thus White should prefer (11...Rb8) 12.Nd2, e.g. 12...Be6? 13.Ne4. On other moves 13.Rb1, as planned. 

9.Qxe5 += isn't impressive, but since I don't believe in the alternatives, it still looks like the best solution.
  
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Re: Spanish repertoire
Reply #205 - 08/14/11 at 15:54:08
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My first thought is that between one and two tenths of a pawn could indeed be described as a very slight plus.
  
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Re: Spanish repertoire
Reply #204 - 08/14/11 at 15:48:04
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Hello everybody,

After 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6 Qxf6 7.Qe2 Be7 8.Bxc6 bxc6, Stefan suggests 9.Qxe5 d6 10.Qxf6 Bxf6 11.d3 0-0, and now 12.Nd2N. I wonder if Black has no better move than 11...0-0, as this might just be a waste of time (why would Black be in a hurry to bring the king to the king's side in this position?).

What about 11...Rb8 instead, with the following moves 12.Rb1 Be6 13.b3 and now 13...Bd5?

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Houdini gives a slight plus for White (between + 0.1 and + 0.2), but from my point of view, Black threatens to give up the bishops pair with Bxf3, devaluating White's king's side majority, when Black in addition would have the half open f-file to play against the doubled pawns on f2 and f3. White's pawn structure on the queen's side also doesn't look so convincing.

So, I would give this position only a very slight plus for White, with a probable draw. What do stronger players than me think?

Best regards,

Zwischenzugzwang
  

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Re: Spanish repertoire
Reply #203 - 08/14/11 at 07:33:42
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Stefan Buecker wrote on 08/13/11 at 14:58:01:
Is there a member who has played the Jaenisch/Schliemann and has an opinion about these critical lines? We also could need some hints about the best available chess books on the topic. I have Khalifman, Sokolov, Greet, Flear ("Offbeat Spanish"), but e.g. Brunello ("Attacking the Spanish") seems to be missing. Are there older sources of some importance (I'll check Harding: Counter Gambits)? Is there any source a Jaenisch player swears on?


Actually, yes, me. Though my interest has always been 5...d5 rather than 5...Nf6, so I can't speak definitively on the latter.

As for books, Ivanov & Kulagin's book (Olbrich 1994) is the definitive tome (as mentioned by Markovich); Jimmy Adams' old Chess Player book (1982) has quite a bit of useful stuff culled from magazines in the pre-database era; then there's Tseitlin & Glazkov's (Maxwell 1991; now Everyman); Yudovich's "Spanish without ...a6" (Batsford 1986); even Shamkovich & Schiller's (Batsford 1983) is worth looking at (though it has more typos than any other chess book I've ever seen.
  

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Re: Spanish repertoire
Reply #202 - 08/13/11 at 18:58:59
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I have the Ivanov and Kulagin book, as well as the cheerfully optimistic Tseitlin volume that, if I recall correctly, occasionally cites Soviet games I couldn't locate on chessbase.

Alas, they are buried somewhere in the Attic.  I'll rummage around for them.
  
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Re: Spanish repertoire
Reply #201 - 08/13/11 at 17:59:34
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Stefan Buecker wrote on 08/13/11 at 14:58:01:
MNb wrote on 08/09/11 at 21:56:14:
1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6 Qxf6 7.Qe2 Be7 8.Bxc6 dxc6 9.Nxe5 O-O 10.b3 looks inconvenient after 10...Bd6 11.Bb2 Re8.
So 10.O-O and Black has avoided the b2-b3 idea, but abandoned the option to castle Queenside. After 9...O-O 10.O-O there are other moves than 10...Bf5 transposing, but I don't see how they should improve Black's chances. 10...Bd6 11.Nc4 looks good enough for at least some advantage (after 11.d4 c5 12.Be3 Bxe5 Queens will be exchanged, increasing Black's drawing chances).

In the case of 10.b3, there is also 10...Re8! 11.Bb2 Ba3 12.Bc3 Bd6 13.d4 c5 when the Bc3 is misplaced. 

After 10.0-0 Bf5 we are back in a much-played line (thanks to Jon Tait for the valuable hint), but I fail to see a resilient defence for Black. It looks like White has all the chances for a win, and Black is almost helpless.

Interestingly, 10...Bd6 seems to be a tougher nut to crack, the reply 11.d4 (46 games) looks very drawish. I agree with MNb that 11.Nc4 (7 games) should be our choice, no doubt White has a plus here. But how much does he have? 

Is there a member who has played the Jaenisch/Schliemann and has an opinion about these critical lines? We also could need some hints about the best available chess books on the topic. I have Khalifman, Sokolov, Greet, Flear ("Offbeat Spanish"), but e.g. Brunello ("Attacking the Spanish") seems to be missing. Are there older sources of some importance (I'll check Harding: Counter Gambits)? Is there any source a Jaenisch player swears on?


Among Schliemann works, the sun rises and sets on Ivanov and Kulagin (though it is old by now).  I have this work, but it's unfortunately boxed away.  Maybe I'll try to dig it out.  I also have the Brunello work, btw.
  

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Re: Spanish repertoire
Reply #200 - 08/13/11 at 14:58:01
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MNb wrote on 08/09/11 at 21:56:14:
1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6 Qxf6 7.Qe2 Be7 8.Bxc6 dxc6 9.Nxe5 O-O 10.b3 looks inconvenient after 10...Bd6 11.Bb2 Re8.
So 10.O-O and Black has avoided the b2-b3 idea, but abandoned the option to castle Queenside. After 9...O-O 10.O-O there are other moves than 10...Bf5 transposing, but I don't see how they should improve Black's chances. 10...Bd6 11.Nc4 looks good enough for at least some advantage (after 11.d4 c5 12.Be3 Bxe5 Queens will be exchanged, increasing Black's drawing chances).

In the case of 10.b3, there is also 10...Re8! 11.Bb2 Ba3 12.Bc3 Bd6 13.d4 c5 when the Bc3 is misplaced. 

After 10.0-0 Bf5 we are back in a much-played line (thanks to Jon Tait for the valuable hint), but I fail to see a resilient defence for Black. It looks like White has all the chances for a win, and Black is almost helpless.

Interestingly, 10...Bd6 seems to be a tougher nut to crack, the reply 11.d4 (46 games) looks very drawish. I agree with MNb that 11.Nc4 (7 games) should be our choice, no doubt White has a plus here. But how much does he have? 

Is there a member who has played the Jaenisch/Schliemann and has an opinion about these critical lines? We also could need some hints about the best available chess books on the topic. I have Khalifman, Sokolov, Greet, Flear ("Offbeat Spanish"), but e.g. Brunello ("Attacking the Spanish") seems to be missing. Are there older sources of some importance (I'll check Harding: Counter Gambits)? Is there any source a Jaenisch player swears on?
  
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Re: Spanish repertoire
Reply #199 - 08/12/11 at 01:46:55
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Markovich wrote on 08/11/11 at 17:44:42:
Jonathan Tait wrote on 08/11/11 at 10:40:10:
Markovich wrote on 08/10/11 at 15:12:13:
White wants his pawn on d4 in case of ...O-O, on d3 in case of ...O-O-O.  Black's castling early just lets White know what his setup will be.  Since what you call the "solid lines" are in our repertoire, I don't see why we should try to avoid them in case of Black castling early.

In these lines we just duke it out and make Black justify his pawn deficit.


Fair enough.

Any opinions on 8...bxc6 - ?


Good question.  Have we even looked at that?

On 8...bxc6 White can play 9.Qxe5 (drawish according to Sokolov, but I don't agree) 9...d6 10.Qxf6 Bxf6 11.d3 0-0 (so far it has been played in practice), and now I'd recommend 12.Nd2 with a set-up like 12...d5 13.Rb1 (13.Kd1 c5 14.Rb1 c4!) 13...c5 14.b3 Bd7 15.Kd1 Rae8 16.f3 +=. Black has insufficient compensation for the pawn. 

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White follows the strategy: if your opponent has the bishop pair, limit one of the bishops by pawn chains on one colour. For example: 16...Re6 17.Ba3 Bd4 18.Bb2 Rfe8 19.Bxd4 cxd4 20.Rg1!, intending 20...Re2 21.Ne4. - Black can instead delay castling: 11...c5 12.Nd2 d5, but again 13.Rb1 (not 13.Kd1? c4 =) may just transpose: 13...0-0 14.b3. It seems that Black has nothing better.

Sokolov has more sympathy for 9.Nxe5 or 9.d4"!" (in an old Schach-Archiv this idea is attributed to Dr. Hunter), but there are some flaws. Thus I propose to be satisfied with the good ending after 9.Qxe5. 

Radyabov has played 5...Nf6 only in rapid chess, the only exception: his game against Judit Polgar. Since Polgar likes aggressive play more than better endings, the risk may be limited against her. But somehow I doubt that Radyabov would play 5...Nf6 in a normal game against Kramnik.
  
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Re: Spanish repertoire
Reply #198 - 08/11/11 at 17:44:42
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Jonathan Tait wrote on 08/11/11 at 10:40:10:
Markovich wrote on 08/10/11 at 15:12:13:
White wants his pawn on d4 in case of ...O-O, on d3 in case of ...O-O-O.  Black's castling early just lets White know what his setup will be.  Since what you call the "solid lines" are in our repertoire, I don't see why we should try to avoid them in case of Black castling early.

In these lines we just duke it out and make Black justify his pawn deficit.


Fair enough.

Any opinions on 8...bxc6 - ?


Good question.  Have we even looked at that?
  

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Re: Spanish repertoire
Reply #197 - 08/11/11 at 10:40:10
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Markovich wrote on 08/10/11 at 15:12:13:
White wants his pawn on d4 in case of ...O-O, on d3 in case of ...O-O-O.  Black's castling early just lets White know what his setup will be.  Since what you call the "solid lines" are in our repertoire, I don't see why we should try to avoid them in case of Black castling early.

In these lines we just duke it out and make Black justify his pawn deficit.


Fair enough.

Any opinions on 8...bxc6 - ?
  

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Re: Spanish repertoire
Reply #196 - 08/10/11 at 15:12:13
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White wants his pawn on d4 in case of ...O-O, on d3 in case of ...O-O-O.  Black's castling early just lets White know what his setup will be.  Since what you call the "solid lines" are in our repertoire, I don't see why we should try to avoid them in case of Black castling early.

In these lines we just duke it out and make Black justify his pawn deficit.
  

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Re: Spanish repertoire
Reply #195 - 08/10/11 at 08:29:20
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MNb wrote on 08/09/11 at 21:56:14:
1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6 Qxf6 7.Qe2 Be7 8.Bxc6 dxc6 9.Nxe5 O-O 10.b3 looks inconvenient after 10...Bd6 11.Bb2 Re8.
So 10.O-O and Black has avoided the b2-b3 idea, but abandoned the option to castle Queenside. After 9...O-O 10.O-O there are other moves than 10...Bf5 transposing, but I don't see how they should improve Black's chances. 10...Bd6 11.Nc4 looks good enough for at least some advantage (after 11.d4 c5 12.Be3 Bxe5 Queens will be exchanged, increasing Black's drawing chances).


Black has abandoned castling queenside, sure, but Black hardly ever castles queenside anyway.

Whereas after 10 0-0 Bf5, aren't we just back in the solid variations (e.g. from Kramnik-Radjabov) that 9...Bf5 10 b3 was trying to avoid?
  

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Re: Spanish repertoire
Reply #194 - 08/10/11 at 00:55:39
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MNb wrote on 08/09/11 at 21:56:14:
1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6 Qxf6 7.Qe2 Be7 8.Bxc6 dxc6 9.Nxe5 O-O 10.b3 looks inconvenient after 10...Bd6 11.Bb2 Re8.
So 10.O-O and Black has avoided the b2-b3 idea, but abandoned the option to castle Queenside. After 9...O-O 10.O-O there are other moves than 10...Bf5 transposing, but I don't see how they should improve Black's chances. 10...Bd6 11.Nc4 looks good enough for at least some advantage (after 11.d4 c5 12.Be3 Bxe5 Queens will be exchanged, increasing Black's drawing chances).


My thoughts also.
  

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Re: Spanish repertoire
Reply #193 - 08/09/11 at 21:56:14
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1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 Nf6 6.Nxf6 Qxf6 7.Qe2 Be7 8.Bxc6 dxc6 9.Nxe5 O-O 10.b3 looks inconvenient after 10...Bd6 11.Bb2 Re8.
So 10.O-O and Black has avoided the b2-b3 idea, but abandoned the option to castle Queenside. After 9...O-O 10.O-O there are other moves than 10...Bf5 transposing, but I don't see how they should improve Black's chances. 10...Bd6 11.Nc4 looks good enough for at least some advantage (after 11.d4 c5 12.Be3 Bxe5 Queens will be exchanged, increasing Black's drawing chances).
  

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Re: Spanish repertoire
Reply #192 - 08/08/11 at 16:15:37
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1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Ne4 7. Qe2 d5 8. exd6 O-O 9. dxc7 Qe7 10. Bxc6 bxc6 11. cxd4 Bd6 12. O-O Re8 13. Na3!?
Good try, Stefan! I've spent hours to find 13.. Bg4! (instead 0f 13... Qxc7 which I've analyzed through and through not finding enough for black for =) 14. h3 Bh5 15. g4 Bg6 16. Nc4 f6 17. Nxd6 Qxd6 18. Be3 Qxc7 19. Nh4 Bf7 with dynamic equality and opposite coloured bishops.
God, a lot of sweat went into that job!  Cheesy

  
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Re: Spanish repertoire
Reply #191 - 08/08/11 at 11:07:05
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Jonathan Tait wrote on 08/08/11 at 07:15:21:
what about 9...0-0 (instead of 9...Bf5), perhaps followed by ...Bf5, depending on what White does.


An interesting idea. The bishop might for sure be better off somewhere else, since apparently ...Bxc2 is not such a threat. What about 10.b3 anyway?
« Last Edit: 08/08/11 at 17:10:13 by fling »  
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Re: Spanish repertoire
Reply #190 - 08/08/11 at 07:15:21
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MNb wrote on 08/07/11 at 19:16:27:
Jänisch-Schliemann thus far:



what about 9...0-0 (instead of 9...Bf5), perhaps followed by ...Bf5, depending on what White does.
  

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Re: Spanish repertoire
Reply #189 - 08/08/11 at 00:42:27
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Vass wrote on 08/07/11 at 20:38:31:
No, I don't think 7.Qe2 (after  1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Ne4) is the move. I've spent an hour searching for += after it...with no success.
Anyway, if you can give me something that can be useful for += after 7... d5! (and I tried both 8. exd6 and 8.cxd4), I'll check up on it.  Wink
Btw, I still believe in 7... Nd5 (instead of 7... Ne4) - no one showed me += since my post #168. Although, I think my analysis there is far from perfection.

True, 6...Nd5 seems to be a sound alternative, but White still has some options left for inquiry. In the case of 6...Ne4 the simplifications may be more forced. In the 7.Qe2 line, Sokolov's analysis isn't very helpful. Maybe the following gives White some hope. Of course the extra pawn at the end is almost meaningless. But remember Hübner - Ftacnik.

  
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Re: Spanish repertoire
Reply #188 - 08/07/11 at 20:38:31
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No, I don't think 7.Qe2 (after  1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Ne4) is the move. I've spent an hour searching for += after it...with no success.
Anyway, if you can give me something that can be useful for += after 7... d5! (and I tried both 8. exd6 and 8.cxd4), I'll check up on it.  Wink
Btw, I still believe in 7... Nd5 (instead of 7... Ne4) - no one showed me += since my post #168. Although, I think my analysis there is far from perfection.
  
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Re: Spanish repertoire
Reply #187 - 08/07/11 at 19:16:27
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Jänisch-Schliemann thus far:



There is some work left (and alas I now don't have the time for it - end of the schoolyear), but this looks more or less like what we want for White.
  

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Re: Spanish repertoire
Reply #186 - 08/07/11 at 14:20:00
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Vass wrote on 08/07/11 at 09:21:23:
Btw, if we go with 4.c3 f5 we'll have to prove that Khalifman is not right giving += to this whole variation in his book "Openings according to Anand 1.e4, vol 1" (2004). Hard task!..  Embarrassed

Almost by definition, in the genre of repertoire books every line ends with +=  Grin . It is useful, yes, but my respect for books without a bibliography is limited. 

Markovich wrote on 08/07/11 at 13:40:15:
I don't mean to be obstructive or dogmatic. If we can prove += with 4.0-0, I would be very happy to go that way, since it's much more economical.

That's a tricky question, since I don't believe that 4.0-0 is +=. If there is a plus for White after 4.c3 Nf6 5.d4 exd4 6.e5 Ne4, it probably starts with 7.Qe2, the move recommended by Oskar Cordel in the Führer (1888).
  
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Re: Spanish repertoire
Reply #185 - 08/07/11 at 13:40:15
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I don't mean to be obstructive or dogmatic. If we can prove += with 4.0-0, I would be very happy to go that way, since it's much more economical.
  

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Re: Spanish repertoire
Reply #184 - 08/07/11 at 10:22:03
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Stefan Buecker wrote on 08/07/11 at 01:07:32:
One of the advantages of 4.0-0 would be to avoid 4.c3 f5, which isn't entirely harmless. If you are not impressed by 4.c3 f5, but still think that 4.0-0 Nd4 is unpleasant (in my opinion White does have a slight plus), we might prefer 4.c3 Nf6 5.0-0. 


I would probably from a practical POV choose 4.0-0, but we are now after the most critical replies I guess. In that case, I agree we have to look at all Black replies, one at a time, more carefully.
  
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Re: Spanish repertoire
Reply #183 - 08/07/11 at 09:21:23
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Btw, if we go with 4.c3 f5 we'll have to prove that Khalifman is not right giving += to this whole variation in his book "Openings according to Anand 1.e4, vol 1" (2004).
Hard task!..  Embarrassed
Edit: So, for now let's stick to 4.c3 Nf6 which gives black better chances for =, imho.
  
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Re: Spanish repertoire
Reply #182 - 08/07/11 at 08:07:58
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Ok, let's get to work then!.. I agree that 4.c3 is worth investigating in depth, but somehow I feel lost in too many variations.. (for example, 6...Nd5!? or 6...Ne4 is best). Maybe one of us has to claim that in the variation "....." white has good prospects for +=, while others have to fight with black to prove that this position is nearly equal. Then go to the next claim (critical position).. Otherwise we'll lose the direction, imo..  Embarrassed
  
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Re: Spanish repertoire
Reply #181 - 08/07/11 at 01:07:32
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Markovich wrote on 08/06/11 at 23:43:16:
It's too early to take 4.c3 off the table. This move is too well reputed to dismiss so lightly.

For instance, I think the position after 14.Bf1 in Stefan's line of #157 may be worth investigating. Somebody has a lot more understanding of chess than I do to be able to say "=" with any certainty at that point (I only have this in one game by the way, not 36).  But also, isn't 14.a4 a better move than 14.Bf1?

Many of these 36 games were Computer games, I took MegaBase, Corrgames, some of the better collections of engine-games etc. - I checked 14.a4 Be6 at first, but after 15.Nc3 a6 16.Bf1 it seemed to me that the weakness b3 gave Black full compensation without trouble. 25 ply deep, the evaluation is +0.08. Considering the lasting pin and Black's activity, it seems "fair". - My analysis was 14.Bf1 Bd7 15.Nc3 Rac8 16.Bg5 (16.Bf4 Bf5; 16.Bd3 Ba4) 16...f6 17.Bf4 g5 (17...Bf5 18.Qb3+) 18.Bg3 f5 and so on. The computer says: 0.00.   

Nobody is urging you to give up 4.c3 prematurely. There may be hidden improvements in the Ne4 line. One of the advantages of 4.0-0 would be to avoid 4.c3 f5, which isn't entirely harmless. If you are not impressed by 4.c3 f5, but still think that 4.0-0 Nd4 is unpleasant (in my opinion White does have a slight plus), we might prefer 4.c3 Nf6 5.0-0. 
  
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Re: Spanish repertoire
Reply #180 - 08/06/11 at 23:43:16
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Bandwagon effect, hereabouts?  "Assuming all of the above mentioned," everything mentioned above is true, so why don't we just charge ahead in the assumed-true, mentioned-above direction?

Also, let's not start with the assumption, which is about all it is at this point, that we cant find +=, or something close, in one of these lines. 

It's too early to take 4.c3 off the table. This move is too well reputed to dismiss so lightly.

For instance, I think the position after 14.Bf1 in Stefan's line of #157 may be worth investigating. Somebody has a lot more understanding of chess than I do to be able to say "=" with any certainty at that point (I only have this in one game by the way, not 36).  But also, isn't 14.a4 a better move than 14.Bf1?
  

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Re: Spanish repertoire
Reply #179 - 08/06/11 at 22:55:41
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Assuming all of the above mentioned I maintain that we'll have to follow the main line with 4. 0-0
I post a game here and propose to you to look at it, especially at 13. Qf3!? (or ?!), although I think 13. Re1!? with the same Qf3-plan is better for white.

Edit: I think that we can't find pure += in this 3... Bc5 variation, so we'll have to find a variation which is hard for black to handle. And this can be a good one. After 16... Bxf5 I would love to play this position with white. The problem is that 13... d5! (instead of 13... Re8) was missed by Tkachiev and thus white wouldn't have achieved it.
How do you think? Is there any way for white here for += ?
  
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Re: Spanish repertoire
Reply #178 - 08/06/11 at 17:12:59
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Markovich wrote on 08/06/11 at 16:44:46:
After 4.c3 Nf6 5.d4 exd4 6.e5 Nd5!?, Solokov could have saved us a lot of trouble by doing his damn job and writing something about it.  But our treatment so far of this seems facile to me and I suggest we look deeper here as well.

I still think that 6...Nd5 is interesting, but since nobody here has questioned my analysis in reply #157, it seems to me that 6...Ne4 is even stronger. If White has nothing here, the decision about 4.c3 or 4.0-0 should be easy.
  
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Re: Spanish repertoire
Reply #177 - 08/06/11 at 16:44:46
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I posted this once before but somehow it was lost.

I think that if we go with 4.0-0, the strongest after 4...Nd4 is 5.Nxd4 Bxd4 6.c3.  I wrote before that I doubted that White had much here, but maybe we should look at it more deeply.

After 4.c3 Nf6 5.d4 exd4 6.e5 Nd5!?, Solokov could have saved us a lot of trouble by doing his damn job and writing something about it.  But our treatment so far of this seems facile to me and I suggest we look deeper here as well.

Anyway it must be 4.0-0 or 4.c3, we should spend some time deciding which.
  

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Re: Spanish repertoire
Reply #176 - 08/05/11 at 16:46:37
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I had written that after (1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. 0-0 Nd4 5. b4), the reply 5...Nxf3+ seemed best. But 5...Bxb4 6.Nxd4 exd4 7.Bb2 is a solid alternative. Played in 25 games (some top players), score 50%. For example: 

(a) 7...Bc5 8.c3 Qf6 9.Qh5 Bb6 10.cxd4 hopes for the amusing trap 10...Bxd4? 11.e5! Qb6 12.e6! +-. But 10...c6 11.Bd3 d6 12.e5 Qf4 13.d5 (13.g3 Bg4 14.exd6 0-0-0 15.Qe5 Qf6 =) 13...Bg4 14.Qh4 g5 may hold.

(b) The main line is perhaps 7...Ne7 8.Bxd4 0-0 9.a3 Ba5 10.Nc3 d6, and White hasn't much. True, I like White's e-pawn more than Black's b-pawn, but that's an entirely different thing than claiming a +=.
  
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Re: Spanish repertoire
Reply #175 - 08/05/11 at 12:23:19
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Vass wrote on 08/05/11 at 06:30:42:
Well, obviously after 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O Nd4 5. b4 Nxf3+ 6. Qxf3 Bxb4 7. Qg3 Nf6 8. d4 O-O 9. Bh6 Nh5 white has only 10. Qxe5 Qf6 11. Qxh5 Qxh6 12. Qxh6 gxh6 13. c3 Ba5 14. Rc1 c6 15. Bd3 d6 16. Nd2 where black has to struggle for a draw, though I think that the two bishops will do it after all.  Wink

There is an alternative: 11.Qxf6 Nxf6 12.Bd2 Bxd2 13.Nxd2 which gives him a nice plus (+=).

If it were only for myself, I'd really like 8.Qxe5+!, not fearing simplifications. To give a b-pawn for a center pawn fits well into my Nimzowitschian/Larsenian world view. 

Worth mentioning is also 7.Bb2 (instead of 7.Qg3) 7...Qg5!? 8.Qb3 Bd6, for example:  

(a) 9.d4 Nh6 10.Rd1 exd4 11.Nd2 c6 12.Be2 0-0 with an unusual situation. White has compensation.

(b) 9.f4 exf4 10.e5 (or maybe 10.d4) 10...Bc5+ 11.Kh1 (or 11.d4 Bb6 12.c4 unclear) 11...b6 12.d4 Bb7 13.Qh3 with compensation, resembling a weird kind of King's Gambit. 

Few games have been played with 4...Nd4 5.b4!?, although it seems to offer just as good play as 5.Nxd4.
  
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Re: Spanish repertoire
Reply #174 - 08/05/11 at 06:30:42
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Markovich wrote on 08/05/11 at 01:18:21:
Convincing about 11...Qf6, thank you.

After 9.Bh6, what's the plan after 9...Nh5?

Well, obviously after 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. O-O Nd4 5. b4 Nxf3+ 6. Qxf3 Bxb4 7. Qg3 Nf6 8. d4 O-O 9. Bh6 Nh5 white has only 10. Qxe5 Qf6 11. Qxh5 Qxh6 12. Qxh6 gxh6 13. c3 Ba5 14. Rc1 c6 15. Bd3 d6 16. Nd2 where black has to struggle for a draw, though I think that the two bishops will do it after all.  Wink
  
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Re: Spanish repertoire
Reply #173 - 08/05/11 at 01:18:21
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Convincing about 11...Qf6, thank you.

After 9.Bh6, what's the plan after 9...Nh5?
  

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Re: Spanish repertoire
Reply #172 - 08/04/11 at 20:42:45
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Markovich wrote on 08/04/11 at 19:50:42:
We have more useful things to discuss, but I would much rather have White after 18...Qd7 19.f5. For all I know you may be right that 9.b4 is even better, but I don't see how Black redeems himself here. - I guess I would agree that White will need good technique to win the piece-up ending.

Agreed - it is suitable only for people with a divine endgame technique. For our earth-bound repertoire, 9.Qd4...12.Qd4 would be good enough (+0.30), and 9.b4 is strong, too.

Markovich wrote on 08/04/11 at 19:50:42:
After 9.b4 Ne6 10.f4 Nc6 11.f5, I'm not so sure that 11...Qf6 is bad for Black.

12.fxe6 Qxa1 13.exf7+ Kf8 14.c3 Qxb1 15.Bd3 Qxa2 16.Re1 Qxf7 17.Rf1 Ne5 18.Rxf7+ Nxf7 19.Qf3 (even stronger than 19.Bc4 c6 20.Bxf7) 19...c6 20.Be3 d6 21.Bc4 d5 22.Bd3 +-. 

After 1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.0-0 Nd4, an inspiring idea would be Lutikov's 5.b4 Nxf3+ (best) 6.Qxf3 Bxb4. Here 7.Bb2 scored only 50% in 6 games (e.g. 7...Qg5), but I'd like 7.Qg3, which has been played only once: 7...c6 8.Qxe5+ Henson - Lawson, Canada 2005, later 0-1. Stronger would have been 8.Bc4 Qf6 9.Bb2 d6 10.f4!. Probably 7...Nf6! is critical:

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White can choose between 8.Qxe5+ and 8.d4 0-0 9.Bh6 Ne8. Am I right to prefer White?
  
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Re: Spanish repertoire
Reply #171 - 08/04/11 at 19:50:42
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We have more useful things to discuss, but I would much rather have White after 18...Qd7 19.f5. For all I know you may be right that 9.b4 is even better, but I don't see how Black redeems himself here.

I guess I would agree that White will need good technique to win the piece-up ending.

After 9.b4 Ne6 10.f4 Nc6 11.f5, I'm not so sure that 11...Qf6 is bad for Black.
  

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Re: Spanish repertoire
Reply #170 - 08/04/11 at 18:00:51
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Markovich wrote on 08/04/11 at 16:49:02:
Stefan Buecker wrote on 08/03/11 at 23:41:00:
MNb wrote on 08/03/11 at 23:14:12:
But yes, if it's gonna be 3...Nf6 4.o-o Bc5 5.Nxe5 you are right.

I see, in http://www.chesspub.com/cgi-bin/yabb2/YaBB.pl?num=1149281149 Markovich gave an interesting novelty in the line 5.Nxe5 Nxe5 6.d4 a6 7.Be2 Nxe4 8.dxc5 Nxc5 9.Qd4 d6 10.f4 Ng6 11.Qxg7 Bf5 12.g4. (The last move, though very ambitious, wasn't mentioned by Sokolov. My PC now suggests 12.Qd4 as good for White, btw.) But I also like Sokolov's analysis with 9.b4!?. It is not easy for Black to equalize here. 

6...c6 7.dxe5 Nxe4 8.Qg4 was studied by Sokolov (I have my doubts), but the quieter 8.Bd3 seems good enough for a plus. - Thus it seems that Black should play 5...Nxe4.


12. g4 just wins, I think.

This was your analysis from quite a while ago (moves in bold):

Markovich wrote on 06/02/06 at 20:45:49:
I will now be generous and share what I believe to be the refutation of a major line of the Berlin Classical:  1. e4 e5  2. Nf3 Nc6  3. Bb5 Nf6  4. 0-0 Bc5  5. Nxe5 (this may be White's best, I opine) 5...Nxe5 6. d4 a6!  7. Be2! Nxe4?. I say "?" because I believe I have the refutation:  8. dxc5 Nxc5  9. Qd4 d6  10. f4 Ng6  11. Qxg7 Bf5 and now 12. g4!  Some time ago in Hard Chess I wrote that 12...Qe7!  13. gxf5 Qxe2  14. fxg6 Qg4+  15. Kh1 0-0-0 appeared to give Black reasonable chances for his piece.  For example, 16. Nc3? Ne6! and White is in a lot of trouble (this was actually played in a high-level game, but I forget by whom and where).  White instead should play 16. Qd4! hxg6  17. Nc3 and now 17...Rh3 (does anyone see anything better? -- I don't) reaches a position I considered in Hard Chess, where I thought White would continue with 18. Be3, and I showed that by hurrying his knight to f5, Black could get good play.  But White has instead 18. Qg1! proposing simplification. [...]

Now 18...Qd7!? may be best (roughly equal, says Silicon). So it isn't obvious that 12.g4 is better than, say, 12.Qd4. 
  
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Re: Spanish repertoire
Reply #169 - 08/04/11 at 16:49:02
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Stefan Buecker wrote on 08/03/11 at 23:41:00:
MNb wrote on 08/03/11 at 23:14:12:
But yes, if it's gonna be 3...Nf6 4.o-o Bc5 5.Nxe5 you are right.

I see, in http://www.chesspub.com/cgi-bin/yabb2/YaBB.pl?num=1149281149 Markovich gave an interesting novelty in the line 5.Nxe5 Nxe5 6.d4 a6 7.Be2 Nxe4 8.dxc5 Nxc5 9.Qd4 d6 10.f4 Ng6 11.Qxg7 Bf5 12.g4. (The last move, though very ambitious, wasn't mentioned by Sokolov. My PC now suggests 12.Qd4 as good for White, btw.) But I also like Sokolov's analysis with 9.b4!?. It is not easy for Black to equalize here. 

6...c6 7.dxe5 Nxe4 8.Qg4 was studied by Sokolov (I have my doubts), but the quieter 8.Bd3 seems good enough for a plus. - Thus it seems that Black should play 5...Nxe4.


12. g4 just wins, I think.
  

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Re: Spanish repertoire
Reply #168 - 08/04/11 at 12:28:16
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Imho, after 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Nd5!? 7. cxd4 Bb4+ (8. Bd2 Bxd2 9. Qxd2 a6!? when both 10. Bd3 d6 and 10. Bc4 Nb6 11. Bb3 d6 seems about equal) 8. Nbd2 a6 9. Ba4 Nb6 10. Bc2 d5 11. a3 Be7 12. h3 O-O 13. O-O and now 13.... f6!? 14. Re1 fxe5 15. dxe5 Qe8!? 16. b4 Bf5!? 17. Bb2 Qg6 18. Rc1 Rae8 black achieves what he wants.
I find that 7. 0-0 is not critical for black, too - after 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Nd5 7. O-O Be7 8. cxd4 d6 9. Nc3 Be6 10. Qb3 Nxc3 11. Qxc3 Bd5!? 12. Bc4 Bxc4 13. Qxc4 O-O 14. Be3 a5! with ...d5, ...Ra6, ...Rb6 idea. (All improvements for white are welcome, of course!)
Thus, we can concentrate on 5. 0-0 I suppose.  Wink
Edit: Mhmm.., I somehow start to believe Stefan that 3... Bc5 is =  Roll Eyes
  
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Re: Spanish repertoire
Reply #167 - 08/04/11 at 03:45:01
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Markovich wrote on 08/03/11 at 17:01:27:
Stefan Buecker wrote on 08/03/11 at 14:12:20:
We'll also have to do with 3...Nf6 4.0-0 Bc5, when White's choices are more limited. - Edit: Khalifman's (2003) suggested repertoire was 4.c3 Nf6 5.0-0, transposing to 3...Nf6 4.0-0 Bc5.


Here I strongly recommend 5.Nxe5.

Quote:
I am not sure whether White has much, for example, after 3...Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5!? (not in Sokolov) 7.0-0 Be7 8.cxd4 d6 9.Nc3 Be6, about =.


I can't understand why 7.cxd4, instead of 7.0-0, isn't seen more in practice.  I my db it occurs in three very low-level games, worthless as indications of its merit.  But after 7...Bb4+ 8.Nbd2 0-0 9.0-0 White looks pretty good to me.






For what it's worth after 7...Bb4+ in the last variation, Houdini on my computer thinks 8.Bd2 is even stronger despite giving up the Bishop pair.
  
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Re: Spanish repertoire
Reply #166 - 08/03/11 at 23:41:00
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MNb wrote on 08/03/11 at 23:14:12:
But yes, if it's gonna be 3...Nf6 4.o-o Bc5 5.Nxe5 you are right.

I see, in http://www.chesspub.com/cgi-bin/yabb2/YaBB.pl?num=1149281149 Markovich gave an interesting novelty in the line 5.Nxe5 Nxe5 6.d4 a6 7.Be2 Nxe4 8.dxc5 Nxc5 9.Qd4 d6 10.f4 Ng6 11.Qxg7 Bf5 12.g4. (The last move, though very ambitious, wasn't mentioned by Sokolov. My PC now suggests 12.Qd4 as good for White, btw.) But I also like Sokolov's analysis with 9.b4!?. It is not easy for Black to equalize here. 

6...c6 7.dxe5 Nxe4 8.Qg4 was studied by Sokolov (I have my doubts), but the quieter 8.Bd3 seems good enough for a plus. - Thus it seems that Black should play 5...Nxe4.
  
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Re: Spanish repertoire
Reply #165 - 08/03/11 at 23:14:12
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MNb wrote on 08/03/11 at 16:48:34:
But Markovich, is it practical to discuss 3...Bc5 4.c3 Nf6 5.d4 if 5.o-o just transposes to 3...Nf6 4.o-o Bc5 5.c3 ?


Markovich wrote on 08/03/11 at 17:04:49:
It doesn't just transpose because Black has that big, fat 5...Nd4, which I have already mentioned in two posts.  Show me += after that and I'll be happy to go with 5.0-0.

Is 3...Bc5 4.c3 Nf6 5.o-o Nd4 6.cxd4! +- good enough for you?

But yes, if it's gonna be 3...Nf6 4.o-o Bc5 5.Nxe5 you are right.
  

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Re: Spanish repertoire
Reply #164 - 08/03/11 at 18:44:12
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Markovich wrote on 08/03/11 at 16:42:40:
Stefan Buecker wrote on 08/03/11 at 14:12:20:
We'll also have to do with 3...Nf6 4.0-0 Bc5, when White's choices are more limited. - Edit: Khalifman's (2003) suggested repertoire was 4.c3 Nf6 5.0-0, transposing to 3...Nf6 4.0-0 Bc5. - I am not sure whether White has much, for example, after 3...Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5!? (not in Sokolov) 7.0-0 Be7 8.cxd4 d6 9.Nc3 Be6, about =. And 6...Ne4 7.0-0 d5 should be solid enough, but 7...dxc3?! isn't easy to refute either: 8.Qc2! (8.Qd5 by Sokolov seems to be wrong and is only equal after 8...Bxf2+ 9.Kh1 Be3!) when White can take back on f2 with the Queen (+=).


Interesting after 8.Qd5 Bxf2+ is 9.Rxf2 Nxf2 10.Nxc3.  This must have been the subject of a theoretical discussion somewhere, sometime, but I can't find anything on it.  But after 10...Ng4 11.Bg5 Ne7 (11...f6 fails) 12.Qe4 c6 13.Qxg4 d5 14.Qd4 (14.Qh4 cxb5 seems to favor Black) 14...Qb6, I can find no advantage for White.  I mention this in case anyone else can find anything promising in it.  

A related line also worth looking at is 10.Kxf2 instead of 10.Nxc3.  My data base has a CXEB (Brazilian cc league) game where White managed to win after 10...cxb2 11.Bxb2, notwithstanding that Black has a rook and three pawns versus two minor pieces and also has no weaknesses.  He's way behind in activity of course, but I wonder if White's game can be trusted.

We don't have to look at 7...dxc3, because 8.Qc2 is a good reply. By the way, Sokolov himself mentions 7...a6 8.Ba4 dxc3 9.Qc2!?. Maybe his 7...a6 is good, but I like 7...d5 (see my reply # 157). 
  
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Re: Spanish repertoire
Reply #163 - 08/03/11 at 18:39:08
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Markovich wrote on 08/03/11 at 17:01:27:
Stefan Buecker wrote on 08/03/11 at 14:12:20:
We'll also have to do with 3...Nf6 4.0-0 Bc5, when White's choices are more limited. - Edit: Khalifman's (2003) suggested repertoire was 4.c3 Nf6 5.0-0, transposing to 3...Nf6 4.0-0 Bc5.

Here I strongly recommend 5.Nxe5.

3...Nf6 4.0-0 Bc5 5.Nxe5 Nxe4 6.Qe2 Nxe5 7.d4 Qe7 8.dxc5 Nxc5 is the line recommended by Sokolov (2009), but there is a good alternative in 8...Ng6!, keeping the Ne4 one move longer on e4. If 9.Nc3 Nxc3 10.Qxe7+ Nxe7 11.bxc3 b6 12.Re1 Kd8 13.Ba3 bxc5 14.Bxc5 d6 15.Rad1 Rb8 16.Ba4 Be6 17.f3 Kc8 18.Bd4 Nf5 19.Bf2 Rb2 20.a3 h5 looks pretty equal to me. In a game Vasiukov - Litvinov, Moscow 1963, White played 9.Be3 0-0 10.Qh5 instead, with a fast draw.
  
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Re: Spanish repertoire
Reply #162 - 08/03/11 at 18:17:10
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Markovich wrote on 08/03/11 at 17:04:49:
MNb wrote on 08/03/11 at 16:48:34:
But Markovich, is it practical to discuss 3...Bc5 4.c3 Nf6 5.d4 if 5.o-o just transposes to 3...Nf6 4.o-o Bc5 5.c3 ?


It doesn't just transpose because Black has that big, fat 5...Nd4, which I have already mentioned in two posts.  Show me += after that and I'll be happy to go with 5.0-0.

That seems to be a misunderstanding. MNb suggests to focus on 3....Bc5 4.c3 Nf6 5.0-0 (instead of investing work on 5.d4, too), which we'll need anyway. That's not the same as suggesting 4.0-0 when you fear 4...Nd4.
  
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Re: Spanish repertoire
Reply #161 - 08/03/11 at 17:04:49
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MNb wrote on 08/03/11 at 16:48:34:
But Markovich, is it practical to discuss 3...Bc5 4.c3 Nf6 5.d4 if 5.o-o just transposes to 3...Nf6 4.o-o Bc5 5.c3 ?


It doesn't just transpose because Black has that big, fat 5...Nd4, which I have already mentioned in two posts.  Show me += after that and I'll be happy to go with 5.0-0.
  

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Re: Spanish repertoire
Reply #160 - 08/03/11 at 17:01:27
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Stefan Buecker wrote on 08/03/11 at 14:12:20:
We'll also have to do with 3...Nf6 4.0-0 Bc5, when White's choices are more limited. - Edit: Khalifman's (2003) suggested repertoire was 4.c3 Nf6 5.0-0, transposing to 3...Nf6 4.0-0 Bc5.


Here I strongly recommend 5.Nxe5.

Quote:
I am not sure whether White has much, for example, after 3...Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5!? (not in Sokolov) 7.0-0 Be7 8.cxd4 d6 9.Nc3 Be6, about =.


I can't understand why 7.cxd4, instead of 7.0-0, isn't seen more in practice.  I my db it occurs in three very low-level games, worthless as indications of its merit.  But after 7...Bb4+ 8.Nbd2 0-0 9.0-0 White looks pretty good to me.




  

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Re: Spanish repertoire
Reply #159 - 08/03/11 at 16:48:34
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But Markovich, is it practical to discuss 3...Bc5 4.c3 Nf6 5.d4 if 5.o-o just transposes to 3...Nf6 4.o-o Bc5 5.c3 ?
  

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Re: Spanish repertoire
Reply #158 - 08/03/11 at 16:42:40
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Stefan Buecker wrote on 08/03/11 at 14:12:20:
We'll also have to do with 3...Nf6 4.0-0 Bc5, when White's choices are more limited. - Edit: Khalifman's (2003) suggested repertoire was 4.c3 Nf6 5.0-0, transposing to 3...Nf6 4.0-0 Bc5. - I am not sure whether White has much, for example, after 3...Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5!? (not in Sokolov) 7.0-0 Be7 8.cxd4 d6 9.Nc3 Be6, about =. And 6...Ne4 7.0-0 d5 should be solid enough, but 7...dxc3?! isn't easy to refute either: 8.Qc2! (8.Qd5 by Sokolov seems to be wrong and is only equal after 8...Bxf2+ 9.Kh1 Be3!) when White can take back on f2 with the Queen (+=).


Interesting after 8.Qd5 Bxf2+ is 9.Rxf2 Nxf2 10.Nxc3.  This must have been the subject of a theoretical discussion somewhere, sometime, but I can't find anything on it.  But after 10...Ng4 11.Bg5 Ne7 (11...f6 fails) 12.Qe4 c6 13.Qxg4 d5 14.Qd4 (14.Qh4 cxb5 seems to favor Black) 14...Qb6, I can find no advantage for White.  I mention this in case anyone else can find anything promising in it.   

A related line also worth looking at is 10.Kxf2 instead of 10.Nxc3.  My data base has a CXEB (Brazilian cc league) game where White managed to win after 10...cxb2 11.Bxb2, notwithstanding that Black has a rook and three pawns versus two minor pieces and also has no weaknesses.  He's way behind in activity of course, but I wonder if White's game can be trusted.

  

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Re: Spanish repertoire
Reply #157 - 08/03/11 at 14:12:20
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We'll also have to do with 3...Nf6 4.0-0 Bc5, when White's choices are more limited. - Edit: Khalifman's (2003) suggested repertoire was 4.c3 Nf6 5.0-0, transposing to 3...Nf6 4.0-0 Bc5. - I am not sure whether White has much, for example, after 3...Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Nd5!? (not in Sokolov) 7.0-0 Be7 8.cxd4 d6 9.Nc3 Be6, about =. And 6...Ne4 7.0-0 d5 should be solid enough, but 7...dxc3?! isn't easy to refute either: 8.Qc2! (8.Qd5 by Sokolov seems to be wrong and is only equal after 8...Bxf2+ 9.Kh1 Be3!) when White can take back on f2 with the Queen (+=). 

PS. 3...Bc5 4.c3 Nf6 5.d4 exd4 6.e5 Ne4 7.0-0 d5 (a6!? Sokolov) 8.exd6 0-0 9.dxc7 Qxc7! (maybe better than Sokolov's main line 9...Qf6) 10.cxd4 Nxd4 (S. mentions only Bd6) 11.Nxd4 Qb6. This has been played in 36 games, Black scored 69%. Best seems 12.Qc2 Nxf2 13.Rxf2 Bxd4 14.Bf1 =.
  
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Re: Spanish repertoire
Reply #156 - 08/03/11 at 13:17:56
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fling wrote on 08/03/11 at 07:32:39:
Markovich wrote on 08/02/11 at 15:36:22:
Can we perhaps take a peek at 3...Bc5?  My thinking is that 4.O-O isn't quite good enough because of 4...Nd4, where White's eventual advantage seems pretty slight.  I think that 4.c3 is more challenging.  Stefan said "3...Bc5 =", which seems a little funny to me, but  I'd like to learn how he plans to meet 4.c3.  

If 4...f5 I think that 5.d4 fxe4 6.Bxc6 dxc6 7.Ne5 Bd6 is best.  After that I'm not sure, but I'm attracted to the simple 8.0-0 Nf6 (8...Qh4!?) 9.Nd2.

If 4...Nf6 I maintain that 4.d4 exd4 5.e5 Ne4 6.O-O is += or better.


I know we are looking for critical answers, and I know that you consider 4.c3 pretty critical in the Bird, but what about transposing to the regular main line after 1. e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.O-O Nd4 5.Nxd4 exd4 6.d3 etc?

This actually seems like a practical approach. Even though the lines in the Bird are more complicated than I thought, they are considered +=. In this case, White only needs to learn how to answer other replies than 4 ...Nd4


5.Nxd4 isn't met by 5...exd4 but by 5...Bxd4, after which White's advantage is rather slight, I think. I don't recall having said anything about the Bird, but I do think that since 4.c3 is the most critical and apparently the most promising against 3...Bc5, that is what we should reccommend. 







  

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Re: Spanish repertoire
Reply #155 - 08/03/11 at 07:32:39
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Markovich wrote on 08/02/11 at 15:36:22:
Can we perhaps take a peek at 3...Bc5?  My thinking is that 4.O-O isn't quite good enough because of 4...Nd4, where White's eventual advantage seems pretty slight.  I think that 4.c3 is more challenging.  Stefan said "3...Bc5 =", which seems a little funny to me, but  I'd like to learn how he plans to meet 4.c3.  

If 4...f5 I think that 5.d4 fxe4 6.Bxc6 dxc6 7.Ne5 Bd6 is best.  After that I'm not sure, but I'm attracted to the simple 8.0-0 Nf6 (8...Qh4!?) 9.Nd2.

If 4...Nf6 I maintain that 4.d4 exd4 5.e5 Ne4 6.O-O is += or better.


I know we are looking for critical answers, and I know that you consider 4.c3 pretty critical in the Bird, but what about transposing to the regular main line after 1. e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.O-O Nd4 5.Nxd4 exd4 6.d3 etc?

This actually seems like a practical approach. Even though the lines in the Bird are more complicated than I thought, they are considered +=. In this case, White only needs to learn how to answer other replies than 4 ...Nd4
  
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Re: Spanish repertoire
Reply #154 - 08/02/11 at 21:01:06
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Ouch, my analysis of 9.Ke2 was flawed, with old software. It seems (to my own surprise) that I had only had a new look on 9.Kd1 based on Sokolov, but didn't study 9.Ke2 again. - I'll check alternatives. 9.Ke2 now looks pretty good for White. 

Edit: 1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 Nf6 (maybe I'll convert to 4...f5 later...) 5.d4 Bb6 6.Nxe5 Nxe5 7.dxe5 Nxe4 8.Qg4 Bxf2+ 9.Ke2 Qh4 10.Qxg7 Rf8. Critical seems 11.Bh6 (11.Nd2 Nxd2, about =) 11...Bc5 12.Nd2 ("with some white advantage", Sokolov) 12...Qf2+ (12...c6? 13.g3 +-; 12...Nf2?! 13.b4 Ng4) 13.Kd1 Nxd2 14.Bxd2 c6 15.Bc4 (or 15.Bd3) Qh4 16.Bd3 d5 17.exd6 Bxd6 18.Kc2 Be6 19.g3 Qa4+ 20.b3 Qa3 (Qa5) 21.Bg5 Kd7 22.Bf6 +=. Can Black improve this line?
« Last Edit: 08/03/11 at 14:09:45 by Stefan Buecker »  
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Re: Spanish repertoire
Reply #153 - 08/02/11 at 18:09:28
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Stefan Buecker wrote on 08/02/11 at 17:57:17:
Markovich wrote on 08/02/11 at 17:29:49:
Stefan Buecker wrote on 08/02/11 at 16:25:45:
Markovich wrote on 08/02/11 at 15:36:22:
Can we perhaps take a peek at 3...Bc5?  My thinking is that 4.O-O isn't quite good enough because of 4...Nd4, where White's eventual advantage seems pretty slight.  I think that 4.c3 is more challenging.  Stefan said "3...Bc5 =", which seems a little funny to me, but  I'd like to learn how he plans to meet 4.c3.  

If 4...f5 I think that 5.d4 fxe4 6.Bxc6 dxc6 7.Ne5 Bd6 is best.  After that I'm not sure, but I'm attracted to the simple 8.0-0 Nf6 (8...Qh4!?) 9.Nd2.

If 4...Nf6 I maintain that 4.d4 exd4 5.e5 Ne4 6.O-O is += or better.

4...Nf6 5.d4 Bb6 is the best reply in my opinion.


So, what's your improvement on 6.Nxe5 Nxe5 7.dxe5 Nxe6 8.Qg4 Bxf2+ 9.Kd1, as analyzed by Sokolov on p. 215?  I notice he fails to consider 9...c6, is that your idea?

Yes, 10.Qxg7 Rf8 11.Bd3 d5.


I modified my last reply to include some remarks on 9.Ke2; please see.

And further in that vein, 9.Ke2 Qh4 10.Qxg7 Rf8 11.Nd2 (instead of 11.Bh6) 11...Bc5 12.Nf3 Qh5 it seems that 13.Bh6 as played in Stolarczuk - Paprocki, Torun 2003 (athough this was not a very high-level game) is an improvement on 13.Rhe1 b6! as played in Gilezetdinov - Tolush, corr 1971, cited by Sokolov.
  

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Re: Spanish repertoire
Reply #152 - 08/02/11 at 17:57:17
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Markovich wrote on 08/02/11 at 17:29:49:
Stefan Buecker wrote on 08/02/11 at 16:25:45:
Markovich wrote on 08/02/11 at 15:36:22:
Can we perhaps take a peek at 3...Bc5?  My thinking is that 4.O-O isn't quite good enough because of 4...Nd4, where White's eventual advantage seems pretty slight.  I think that 4.c3 is more challenging.  Stefan said "3...Bc5 =", which seems a little funny to me, but  I'd like to learn how he plans to meet 4.c3.  

If 4...f5 I think that 5.d4 fxe4 6.Bxc6 dxc6 7.Ne5 Bd6 is best.  After that I'm not sure, but I'm attracted to the simple 8.0-0 Nf6 (8...Qh4!?) 9.Nd2.

If 4...Nf6 I maintain that 4.d4 exd4 5.e5 Ne4 6.O-O is += or better.

4...Nf6 5.d4 Bb6 is the best reply in my opinion.


So, what's your improvement on 6.Nxe5 Nxe5 7.dxe5 Nxe6 8.Qg4 Bxf2+ 9.Kd1, as analyzed by Sokolov on p. 215?  I notice he fails to consider 9...c6, is that your idea?

Yes, 10.Qxg7 Rf8 11.Bd3 d5.
  
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Re: Spanish repertoire
Reply #151 - 08/02/11 at 17:29:49
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Stefan Buecker wrote on 08/02/11 at 16:25:45:
Markovich wrote on 08/02/11 at 15:36:22:
Can we perhaps take a peek at 3...Bc5?  My thinking is that 4.O-O isn't quite good enough because of 4...Nd4, where White's eventual advantage seems pretty slight.  I think that 4.c3 is more challenging.  Stefan said "3...Bc5 =", which seems a little funny to me, but  I'd like to learn how he plans to meet 4.c3.  

If 4...f5 I think that 5.d4 fxe4 6.Bxc6 dxc6 7.Ne5 Bd6 is best.  After that I'm not sure, but I'm attracted to the simple 8.0-0 Nf6 (8...Qh4!?) 9.Nd2.

If 4...Nf6 I maintain that 4.d4 exd4 5.e5 Ne4 6.O-O is += or better.

4...Nf6 5.d4 Bb6 is the best reply in my opinion.


So, what's your improvement on 6.Nxe5 Nxe5 7.dxe5 Nxe6 8.Qg4 Bxf2+ 9.Kd1, as analyzed by Sokolov on p. 215?  I notice he fails to consider 9...c6, is that your idea?

Leaving aside Sokolov's preferred 9.Kd1, I wonder if 9.Ke2 Qh4 10.Qxg7 Rf8 11.Bh6 Bc5 12.Nd2 isn't quite nice for Black.  Sokolov says, "with some White advantage," but White's advantage is hardly trivial, it seems to me.
  

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Re: Spanish repertoire
Reply #150 - 08/02/11 at 16:25:45
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Markovich wrote on 08/02/11 at 15:36:22:
Can we perhaps take a peek at 3...Bc5?  My thinking is that 4.O-O isn't quite good enough because of 4...Nd4, where White's eventual advantage seems pretty slight.  I think that 4.c3 is more challenging.  Stefan said "3...Bc5 =", which seems a little funny to me, but  I'd like to learn how he plans to meet 4.c3.  

If 4...f5 I think that 5.d4 fxe4 6.Bxc6 dxc6 7.Ne5 Bd6 is best.  After that I'm not sure, but I'm attracted to the simple 8.0-0 Nf6 (8...Qh4!?) 9.Nd2.

If 4...Nf6 I maintain that 4.d4 exd4 5.e5 Ne4 6.O-O is += or better.

4...Nf6 5.d4 Bb6 is the best reply in my opinion.
  
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Re: Spanish repertoire
Reply #149 - 08/02/11 at 15:36:22
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Can we perhaps take a peek at 3...Bc5?  My thinking is that 4.O-O isn't quite good enough because of 4...Nd4, where White's eventual advantage seems pretty slight.  I think that 4.c3 is more challenging.  Stefan said "3...Bc5 =", which seems a little funny to me, but  I'd like to learn how he plans to meet 4.c3.   

If 4...f5 I think that 5.d4 fxe4 6.Bxc6 dxc6 7.Ne5 Bd6 is best.  After that I'm not sure, but I'm attracted to the simple 8.0-0 Nf6 (8...Qh4!?) 9.Nd2.

If 4...Nf6 I maintain that 4.d4 exd4 5.e5 Ne4 6.O-O is += or better.
  

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Re: Spanish repertoire
Reply #148 - 08/01/11 at 17:14:58
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Markovich wrote on 08/01/11 at 12:13:40:
It's all in the posts here if you read back.

I don't doubt it even a second, but as I wrote I am recovering from a flu. I will include 13...c6 later.
Thanks.
  

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Re: Spanish repertoire
Reply #147 - 08/01/11 at 12:13:40
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MNb wrote on 08/01/11 at 09:38:00:
What did Sokolov prescribe again?
Moreover I would like some positional explanation why 14...Rf8 is met one way and 14...Re8 another.


If Black tries the more active rook deployment, we exploit that his e-pawn is less well defended and play 15.Nc3. If he protects his e-pawn with 14...Re8, we don't go in for 15.Nc3 Ra6!, but instead try to exploit our knight's position on b5. It's all in the posts here if you read back.

Sokolov put 13...c6 as his main move, continuing 14.Nc3 Bc5 15.O-O Re8 (15...Rf8 16.Nxe4!) and White is better after 16.b4 or 16.d4 correction: 16.b3 or 16.d4. But we regard Black's early c6 as suboptimal.
« Last Edit: 08/02/11 at 17:23:58 by Markovich »  

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Re: Spanish repertoire
Reply #146 - 08/01/11 at 09:38:00
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What did Sokolov prescribe again?
Moreover I would like some positional explanation why 14...Rf8 is met one way and 14...Re8 another.
« Last Edit: 08/02/11 at 15:48:43 by Markovich »  

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Re: Spanish repertoire
Reply #145 - 08/01/11 at 01:32:34
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MNb wrote on 07/31/11 at 22:31:56:


As I am recovering from a serious flu I can't guarantee at all that I have included everything relevant, so to everybody: do a check, please. Also for this reason I will include the 5...Nf6 stuff later.
But I do have a question. What exactly is the difference (in the 11...Kd8 line) between 14...Re8 and 14...Rf8 lines? Can't they met with the same plan, ie 15.Nc3 and 16.b4 or evt. 16.b3 ? Sure pawn d2 is weak, but if White returns it while exchanging some heavy pieces he/she is still a pawn up.
Or, more likely, do my brains not work properly yet?


14...Rf8 is met by 15.Nc3 Qf5 16.b4.  14...Re8 is met by 15.a4 Ra6 16.b4.  14...c6 is met as per Sokolov.
  

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Re: Spanish repertoire
Reply #144 - 07/31/11 at 22:31:56
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As I am recovering from a serious flu I can't guarantee at all that I have included everything relevant, so to everybody: do a check, please. Also for this reason I will include the 5...Nf6 stuff later.
But I do have a question. What exactly is the difference (in the 11...Kd8 line) between 14...Re8 and 14...Rf8 lines? Can't they met with the same plan, ie 15.Nc3 and 16.b4 or evt. 16.b3 ? Sure pawn d2 is weak, but if White returns it while exchanging some heavy pieces he/she is still a pawn up.
Or, more likely, do my brains not work properly yet?
  

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Re: Spanish repertoire
Reply #143 - 07/31/11 at 21:37:43
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Zwischenzugzwang wrote on 07/31/11 at 12:38:14:
Looking at the recent postings in this thread, some serious chess analysis business seems to be going on  Smiley !
For me and probably many other "part-time-visitors" to this thread, it would be very helpful to have the initial moves at the beginning of each posting.
...inserting the initial moves would - in my view - greatly reduce the danger of leading to a "private discussion" of three, four, five contributors, leaving everybody else practically out.  Sad



Stefan Buecker wrote on 07/31/11 at 20:39:54:


So I agree that 13.Qe2 should be the main line (+/-), and 13.Qh3 += is almost as strong and a simple alternative.


I am sorry I haven't looked at any lines and provided no analysis, but I just came back from a short vacation. I agree with the above.
  
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Re: Spanish repertoire
Reply #142 - 07/31/11 at 21:18:42
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Well then, it only remains for our friend MNb to consolidate all this in his notes, and we're back onto 5...Nf6. Or are we finished there as well?
  

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Re: Spanish repertoire
Reply #141 - 07/31/11 at 20:39:54
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Zwischenzugzwang wrote on 07/31/11 at 15:23:21:
After 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 dxe4 7.Nxc6 Qd5 8.c4 Qd6 9.Nxa7+ Bd7 10.Bxd7+ Qxd7 11.Qh5+ Kd8! 12.Nb5 Nf6 13.Qe2 Bc5 14.0-0 Rf8, I wonder if 15.d4, as played in the games Vogt - Senarega and Fedorov - Morgado, is so strong; my computer doesn't like it at all. What about 15.Nc3 (threatening the third black pawn and, more importantly, freeing b1 for the rook) and after 15...Qf5 the sacrifice 16.b4 Bxb4 17.Rb1 Bxc3 18.dxc3?

Indeed, these 14...Rf8 corr. games are not convincing. 15.Nc3! Qf5 16.b4! (Zwischenzugzwang) looks strong. If 16...Bxb4 17.Rb1 Bd6, White has 18.Rb5 Qg6 19.h4!, and if 17...Bc5 18.Rxb7 Bb6, the sacrifice 19.Rxb6 cxb6 20.Nb5 gives White a +1.20 position with fine winning chances. 

Ivan Sokolov's 14...Re8 may be slightly more precise, after 15.Nc3 (16.b4 Bxb4 17.Rb1 Rb6 +0.60) 15...Ra6 Black's Re8  is more useful than the Rf8. I had already mentioned the idea 15.a4 intending 15...Ng4? 17.b4!. Now I think that even the more logical 15...Ra6 runs into problems after 16.b4! Bxb4 17.Ba3 +0.88, when Black's strongest piece Bb4 is exchanged or pushed aside to the square a5. 

So I agree that 13.Qe2 should be the main line (+/-), and 13.Qh3 += is almost as strong and a simple alternative.
  
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Re: Spanish repertoire
Reply #140 - 07/31/11 at 18:43:19
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Both these ideas look pretty strong to me.  I see that in Filipenko - Fedoseev, Izhevsk 2006, one of the rare OTB games in this line, White won after 13.Qh3 Qd3 14.Qxd3 exd3 15.h4.  But 13...Qxh3 must be critical, when Stefan's analysis looks good (indeed it looks at least +=).  I have to admit I like this idea, which denies Black any sort of fun, though possibly at the cost of a more certain White win.

13.Qe2 preserves maximal winning chances at the cost of giving Black at least some practical chances of his own.  I find it a little strange that in 8 or 10 corr games that I have, White didn't do very well (confirmed in Stefan's data).  I think this is explained by the circumstance that essentially all of these games are from the pre-engine era, at least in my data.  Precise corr defense is much easier, backed up by an engine.

So after 13.Qe2 Bc5 14.O-O Rf8 15.Nc3 Qf5 (15...Qd3 16.Qxd3 exd3 17.b3 and White must be fine) 16.b4! does indeed seem strong.  We should note that Black doesn't have to take the pawn, he can play 16...Bd6 17.h3 or 16...Bd4,17.Bb2 but even so White's case seems hopeful.

OTB I expect I would play 13.Qh3 every time, dousing Black's winning chances.  Maybe we should mention both lines, at least if we can't find a way to demonstrate Black's comp after 15.Nc3.
  

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Re: Spanish repertoire
Reply #139 - 07/31/11 at 15:23:21
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After 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 dxe4 7.Nxc6 Qd5 8.c4 Qd6 9.Nxa7+ Bd7 10.Bxd7+ Qxd7 11.Qh5+ Kd8! 12.Nb5 Nf6 13.Qe2 Bc5 14.0-0 Rf8, I wonder if 15.d4, as played in the games Vogt - Senarega and Fedorov - Morgado, is so strong; my computer doesn't like it at all. What about 15.Nc3 (threatening the third black pawn and, more importantly, freeing b1 for the rook) and after 15...Qf5 the sacrifice 16.b4 Bxb4 17.Rb1 Bxc3 18.dxc3?

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White has horrible doubled pawns, but the bishop is free, the b-file is half-opened (where is the black king going to rest?) and White still has a material advantage.
  

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Re: Spanish repertoire
Reply #138 - 07/31/11 at 15:12:49
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So we are satisfied with a significant edge in the ending, some winning chances with almost no risk of losing? In that case 13.Qh3!? comes into consideration. (Actually, I now almost believe that White has nothing better - in all lines after 12.Qa5 or 12.Nb5 Nf6 13.Qe2 or 13.Qg5 Black seems to have sufficient compensation.) The only game in the database with 13.Qh3 stems from a thematic tournament. The annotations are mine:

  
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Re: Spanish repertoire
Reply #137 - 07/31/11 at 14:40:36
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Stefan Buecker wrote on 07/31/11 at 01:01:39:
[1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 (Jaenisch didn't recommend it, but still: "Jaenisch Gambit", sometimes called "Schliemann Gambit", for reasons nobody understands) 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 dxe4 7.Nxc6 Qd5 8.c4 Qd6 9.Nxa7+ Bd7 10.Bxd7+ Qxd7 11.Qh5+ Kd8!

Markovich wrote on 07/30/11 at 18:14:12:
Well, looking back at 12.Qa5 Ke8 13.Qe5+ Kf7 14.Nb5 c6 15.Qd4 Qg4, I wonder if simply 16.Nxd6+ is good. 16...Bxd6 17.Qxd6 Qxg2 18.Rf1.  If 18...Nf6 19.Qc7 Kg6 20.b3!. But 18...looks more challenging, so I'm not sure.

Critical seems 18...Nf6 19.Qc7+ (19.Qg3 Qxg3 20.fxg3 h5) 19...Ke6! 20.Qxb7 Rhc8 21.b3 Nd7! = or 21.Qb3 Qxh2 22.a4 Ng4 =.



Hmm. 21.Qb3! looks right, intending 21...Ng4 22.Qg3. After your 21...Qxh2, which seems best, perhaps White should try 22.Qe3. I remain unsure of the evaluation.

On second thought, 22.Qe3 Rd8 looks fine for Black.





  

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Re: Spanish repertoire
Reply #136 - 07/31/11 at 13:31:49
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Dear Stefan, that's nice! And even a short summary, that's more than I expected Cheesy

Thank you!
  

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Re: Spanish repertoire
Reply #135 - 07/31/11 at 12:57:48
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[1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 (Jaenisch didn't recommend it, but still: "Jaenisch Gambit", sometimes called "Schliemann Gambit", for reasons nobody understands) 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 dxe4 7.Nxc6 Qd5 8.c4 Qd6 9.Nxa7+ Bd7 10.Bxd7+ Qxd7 11.Qh5+ Kd8!

We had discussed this line 5...d5 [...] 11...Kd8! mainly in replies ##103-111, then turned to 5...Nf6. But in reply #127 it became clear that 11...Kd8 required repair work.
  
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Re: Spanish repertoire
Reply #134 - 07/31/11 at 12:38:14
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Looking at the recent postings in this thread, some serious chess analysis business seems to be going on  Smiley !

However, having a look here only now and then, it's quite difficult to follow. (Taking me for example, these days I have no internet access during the week, and so I am only "here" on weekends.) For me and probably many other "part-time-visitors" to this thread, it would be very helpful to have the initial moves at the beginning of each posting. I guess that shouldn't be a big deal with some "copy and paste"?
It might not be necessary if those moves are given in the posting immediately before, but when refering back to a posting five or ten answers before, then it takes quite some effort for part-time-analysts just to follow.
I remember having read a similar "complaint" in another thread, and the phenomenon under discussion is in no way restricted to this particular thread, but inserting the initial moves would - in my view - greatly reduce the danger of leading to a "private discussion" of three, four, five contributors, leaving everybody else practically out.  Sad

Thanks!

Best regards,

Zwischenzugzwang
  

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Re: Spanish repertoire
Reply #133 - 07/31/11 at 01:01:39
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[1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 (Jaenisch didn't recommend it, but still: "Jaenisch Gambit", sometimes called "Schliemann Gambit", for reasons nobody understands) 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 dxe4 7.Nxc6 Qd5 8.c4 Qd6 9.Nxa7+ Bd7 10.Bxd7+ Qxd7 11.Qh5+ Kd8!

Markovich wrote on 07/30/11 at 18:14:12:
Well, looking back at 12.Qa5 Ke8 13.Qe5+ Kf7 14.Nb5 c6 15.Qd4 Qg4, I wonder if simply 16.Nxd6+ is good. 16...Bxd6 17.Qxd6 Qxg2 18.Rf1.  If 18...Nf6 19.Qc7 Kg6 20.b3!. But 18...looks more challenging, so I'm not sure.

Critical seems 18...Nf6 19.Qc7+ (19.Qg3 Qxg3 20.fxg3 h5) 19...Ke6! 20.Qxb7 Rhc8 21.b3 Nd7! = or 21.Qb3 Qxh2 22.a4 Ng4 =.
« Last Edit: 07/31/11 at 12:48:32 by Stefan Buecker »  
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Re: Spanish repertoire
Reply #132 - 07/30/11 at 18:14:12
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Well, looking back at 12.Qa5 Ke8 13.Qe5+ Kf7 14.Nb5 c6 15.Qd4 Qg4, I wonder if simply 16.Nxd6+ is good. 16...Bxd6 17.Qxd6 Qxg2 18.Rf1.  If 18...Nf6 19.Qc7 Kg6 20.b3!. But 18...Ne7 looks more challenging, so I'm not sure.
« Last Edit: 07/31/11 at 00:19:26 by Markovich »  

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Re: Spanish repertoire
Reply #131 - 07/29/11 at 22:25:22
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It is perhaps worth mentioning that (in the position arising from 11...Kd8) Sokolov gave on p. 12 only this sequence: 12.Nb5 Nf6 13.Qe2 c6 14.Nc3 Bc5 15.0.0 Re8. In this move-order 15...Rf8 is not possible because of 16.Nxe4. In "our" move-order 13...Bc5 14.0-0 Re8 White could try 15.a4 hoping for either 15...Ng4? 16.b4! +/- or 15...c6 16.Nc3 when we were back at Sokolov's analysis. 

However, after 14.0-0 the database has the following: two games with 14...Rf8 15.d4 exd3 16.Qe5 Bb6 17.Bg5 (Lothar Vogt - Senarega and Fedorov - Morgado, corr., drawn with 17...Kc8), and two corr. wins for Black with 14...Ra6 15.b3 Rf8 and 14...c6 15.Nc3 Re8.
  
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Re: Spanish repertoire
Reply #130 - 07/29/11 at 08:20:02
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Markovich wrote on 07/29/11 at 01:49:55:
Well then, after 5...d5 and 7...Qd5 8.c8 Qd6 9.Nxa7+ Bxd7 10.Qh5+ Kd8 11.Bxd7 Qxd7, what's the problem with Sokolov's 12.Nb5?

From my reply #103:
Stefan Buecker wrote on 07/27/11 at 10:53:37:
In my opinion Black should play 11...Kd8 (instead of g6), e.g. 12.Nb5 Nf6 13.Qe2 Bc5 14.0.0 Re8 15.Nc3 Ra6 +=. 

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There is some compensation for the two (!) pawns. Maybe not enough, but the chances are better than after 11...g6. 

Edit: Black scores 50% (in 32 games) with 11...Kd8 and even 75% (6 games) with 13...Bc5. Surprisingly, Sokolov (who enters this position in the different move order 10.Qh5+ Kd8 11.Bxd7+ Qxd7 ...) considers only 13...c6 (with insufficient comp.), which looks illogical.

In the 12.Qa5 Ke8 13.Qe5+ Kf7 14.Nb5 c6 15.Qd4 Qg4 alternative suggested by MNb, after 16.Qb6 Be7 17.Qxb7 Nf6 18.Nd6+ Ke6 19.Qxc6 Bxd6 20.c5 Rhd8 21.cxd6 Black also has alternatives like 21...Rac8!? (instead of 21...Qxg2 22.d7+ +0.30) 22.Qa6 Qxg2 23.Qf1 Qf3 24.Rg1 Nh5 (or 24...Qf5, or 24...Nd5?!) 25.d7 Rc7 26.Qe2 (26.Qg2 Qxg2 27.Rxg2 Nf4 = [0.08]) 26...Qxe2+ 27.Kxe2 Rdxd7 28.Kf1 (28.Kd1 Rf7 29.Rf1 Nf4 = [+0.08]) 28...g6 29.Rg5 Rc2 30.b3 Rf7 31.Ke2 Nf4+ when Black should have enough play to hold the ending. 

So in my opinion we have the choice between the diagram above and 16.Nc7 Ra5! 17.Qb6 Re5 18.Qxb7 Qd7 19.c5 (19.0-0 Re7 20.d3 with four pawns for the knight, but Black has active play; or 20.d4 resp. 20.Re1; or 19.a4, with unclear endings) 19...Bxc5 (19...Kg6? 20.b4 Nf6 21.Qb8) 20.Qb3+ Kg6 21.Na6 Ba7 (probably best)

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Re: Spanish repertoire
Reply #129 - 07/29/11 at 01:49:55
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Well then, after 5...d5 and 7...Qd5 8.c8 Qd6 9.Nxa7+ Bxd7 10.Qh5+ Kd8 11.Bxd7 Qxd7, what's the problem with Sokolov's 12.Nb5?
  

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Re: Spanish repertoire
Reply #128 - 07/28/11 at 22:37:53
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Göran wrote on 07/27/11 at 17:56:27:
Stefan Buecker wrote on 07/27/11 at 09:33:35:
@Hacker: Excellent survey - you could straightaway change jobs and work for the editorial team of the NIC Yearbook.

Thanks for your kind feedback. I was aiming for Kaissiber however. I understand though I have to be in practise at NIC Yearbook first for some time before being promoted to Kaissiber.

Cool  Around 1980 René Olthof, now a top force at Yearbook, wrote articles for Hugh Myers' MOB; a few years later I did the same. Speaking about career planning - for opening journalism lesser qualifications are sometimes sufficient, being a GM or such.
  
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Re: Spanish repertoire
Reply #127 - 07/28/11 at 22:16:47
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Someone had mentioned 16...Ra5 as a reaction to my idea 16.Nc7 (reply #106), but now I can't find that post. Was it deleted? 

Actually, after (1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 dxe4 7.Nxc6 Qd5 8.c4 Qd6 9.Nxa7+ Bd7 10.Bxd7+ Qxd7 11.Qh5+ Kd8 12.Qa5 Ke8 13.Qe5+ Kf7 14.Nb5 c6 15.Qd4 Qg4 16.Nc7!?) the move 16...Ra5! is surprisingly strong: 

(a) 17.0-0? Rg5

(b) 17.b4 Bxb4 18.Qd8 Nf6! sacrificing Rh8 is unpleasant for White, e.g. 19.Qxh8 Qxg2 20.Rf1 Re5 (or Rf5), at least =. - If instead, 18.Bb2 Nf6 19.Qb6, Black has the shocking 19...Bxd2+ 20.Kxd2 Rd8+ 21.Kc1 Ra4 22.Qb3 e3!, again Black has at least a draw. - Finally, 18.Qb6 e3!! 19.fxe3 (19.Qxb4? exf2+ -+) 19...Rf5! or 19.Nd5 Qxg2 is even clearly better for Black.   

(c) 17.Qb6 seems best, but the consequences are not really clear, e.g. 17...Re5! 18.Qxb7 Qd7 19.c5 Bxc5 20.Qb3+ Kg6 21.Na6 Ba7! 22.0-0 Nf6 23.Nb4 (23.h3? Rb5 24.Qc4 Qd4! and Na6 is in trouble) 23...Rd8. For the two pawns, Black has good attacking chances (+0.41 at 20 ply).  

--------

Should we return to the alternative treatment 16.Qb6 Be7 ? It was at +0.30, so I can't say with certainty that it were worse than 16.Nc7. 

Edit: I mention these evals in pawn units not because I blindly trust them. But they can be an orientation for others who compare their results.
  
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Re: Spanish repertoire
Reply #126 - 07/28/11 at 21:28:45
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Stefan Buecker wrote on 07/28/11 at 18:51:44:
The world elite's score with 10.0-0 is also not a clean sweep, only +3 =7.


Well, this is not too bad either. Not a single White loss.
  
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Re: Spanish repertoire
Reply #125 - 07/28/11 at 18:51:44
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MNb wrote on 07/28/11 at 15:39:39:
Stefan Buecker wrote on 07/28/11 at 13:24:15:
Maybe 13...Re6 14.Qe3 Qe7 15.f4  Bxe5 16.Bxe5 Qa3+ is an alternative in the game, but both Kb1 and Bb2 are fine (+0.80).

This time I tend to distrust computer evaluation (which quite often means that I make a fool out of myself  Cheesy ). 17.Bb2 Rxe3 18.Bxa3 Ree8 the "horror" scenario as pictured by tends to unfold: all heavy pieces get exchanged. Perhaps even more effective in this respect is 17...Qe7 18.Qf2 Re8.
At the other hand 17.Kb1 c5 initiates some unwelcome counterplay (with Ra6 to follow).

In your line 17.Bb2 Rxe3 18.Bxa3, it is true that almost all heavy pieces vanish from the board. but it seems to me that two of them survive: 18...Ree8 19.h3, or 18...Rxe1 19.Rxe1 Rd4 20.d3 Rxf4 21.Re8+ Kd7 22.Re7+ Kc8 23.Rxg7. Black's drawing chances may not be too bad, but assessing the variation we still write "+/-". If our ambitions for this repertoire are higher than to reach an ending with an extra pawn, someone should tell me please. I'd have to change the engine (Ryb3 aggressive or what's her name). 
But basically you are right: White should avoid these exchanges, if possible. So 17.Kb1 is probably better; 17...c5 18.d3 Ra6 19.Bb2 Qxa2+ 20.Kc1 Be6 21.Qf3 g6 22.g4 Qa5 23.f5 +1.30. There are alternatives like 17...Rd5 18.Qf2 Ra5 19.d3 Qxa2+ 20.Kc1 Qa3+ 21.Bb2 Qf8 22.h3 h5 23.Rxe6 Bxe6 24.Re1 Bd7 25.Bc3, and again it must be +/-. 

Black's ability to blockade with his opposite-coloured bishop is discussed in all these variations, but imo we don't want to demonstrate a win for White, only excellent winning chances. The world elite's score with 10.0-0 is also not a clean sweep, only +3 =7.
  
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Re: Spanish repertoire
Reply #124 - 07/28/11 at 15:51:21
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fling wrote on 07/28/11 at 15:29:42:

I seems like Radjabov probably agreed.


I just realized he played 8 ...bxc6 and 9 ...Qe6 against Karjakin recently.
  
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Re: Spanish repertoire
Reply #123 - 07/28/11 at 15:39:39
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Stefan Buecker wrote on 07/28/11 at 13:24:15:
Maybe 13...Re6 14.Qe3 Qe7 15.f4  Bxe5 16.Bxe5 Qa3+ is an alternative in the game, but both Kb1 and Bb2 are fine (+0.80).

This time I tend to distrust computer evaluation (which quite often means that I make a fool out of myself  Cheesy ). 17.Bb2 Rxe3 18.Bxa3 Ree8 the "horror" scenario as pictured by tends to unfold: all heavy pieces get exchanged. Perhaps even more effective in this respect is 17...Qe7 18.Qf2 Re8.
At the other hand 17.Kb1 c5 initiates some unwelcome counterplay (with Ra6 to follow).
  

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Re: Spanish repertoire
Reply #122 - 07/28/11 at 15:29:42
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Markovich wrote on 07/28/11 at 00:33:12:
After 10.O-O O-O 11.d4 I respectfully doubt Sokolov's claim that White will have trouble making progress.


I seems like Radjabov probably agreed. I feel the main reason White is not worse is because he is a pawn up. However, he will have trouble converting that pawn without the light-squared bishop. On the other hand, White scores pretty well after both 0-0 and d3, but as pointed out, b3 looks very interesting.

As Fllg says, White doesn't really have power to break with d5 or f5 without his bishop. For that reason, putting the remaining one where it can do some something seems critical.

Stefan Buecker wrote on 07/28/11 at 13:24:15:
Markovich wrote on 07/28/11 at 11:34:13:
MNb wrote on 07/28/11 at 03:49:49:
I'm not impressed by 10.b3 0-0-0 11.Bb2 Bd6.
Most challenging seems to be 10.0-0 [...] Black's only hope of survival are the opposite coloured Bishops (...Bxe5) combined with a light-square blockade.

This had been my thought exactly, so I'm happy to see you also think so.  [...]

To make sure that we can exclude 10.b3, I have looked at the two corr. games featuring this move. - I never studied 10.0-0. The games often include Bxe5 which creates opposite bishops. One of the key criteria for a good line will be that White must keep some heavy pieces on the board. Maybe 10.0-0 is better in this respect, but that's not the only factor. 

So I believe that the tactical 10...Bxc2 is relevant. For more details see the comments included in the game. 12.Qc4+!? +/- looks risky at first, but may be best. In my opinion, White has a clear advantage. Without knowing much about the 80 games played with 10.0-0, this rare idea 10.b3 might be "good enough".


I think 10.b3 would be a fresh approach to the position, and Bissmann apparently liked the idea as well.
  
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Re: Spanish repertoire
Reply #121 - 07/28/11 at 14:48:01
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Stefan Buecker wrote on 07/27/11 at 20:57:32:
Instead of 12.b3, the computer likes 12.Nf3 +- (2.00).


That´s pretty convincing. It´s strange that Emms missed this and I should have spotted it myself too, even without an engine.

I like the idea of 10.b3 too since after playing d4 and f4 the Bishop on c1 does not have much to do. Arranging pawn breaks with d5 or f5 is difficult with the white squared Bishop missing.
  
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Re: Spanish repertoire
Reply #120 - 07/28/11 at 13:24:15
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Markovich wrote on 07/28/11 at 11:34:13:
MNb wrote on 07/28/11 at 03:49:49:
I'm not impressed by 10.b3 0-0-0 11.Bb2 Bd6.
Most challenging seems to be 10.0-0 [...] Black's only hope of survival are the opposite coloured Bishops (...Bxe5) combined with a light-square blockade.

This had been my thought exactly, so I'm happy to see you also think so.  [...]

To make sure that we can exclude 10.b3, I have looked at the two corr. games featuring this move. - I never studied 10.0-0. The games often include Bxe5 which creates opposite bishops. One of the key criteria for a good line will be that White must keep some heavy pieces on the board. Maybe 10.0-0 is better in this respect, but that's not the only factor. Anyway, in the following game we also see the opposite bishops in action:



The remaining game is a typical corr. win, where White tortures his opponent and gradually improves his position, while Black hasn't much to do. True: White's king would be safer on g1 than on c1, but here it is more important that White can push his king-side majority forward. - Playing 11...Bd6 first, as mentioned by MNb, seems to lead to the same or a similar position. Maybe 13...Re6 14.Qe3 Qe7 15.f4  Bxe5 16.Bxe5 Qa3+ is an alternative in the game, but both Kb1 and Bb2 are fine (+0.80). 

So I believe that the tactical 10...Bxc2 is relevant. For more details see the comments included in the game. 12.Qc4+!? +/- looks risky at first, but may be best. In my opinion, White has a clear advantage. Without knowing much about the 80 games played with 10.0-0, this rare idea 10.b3 might be "good enough".
  
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Re: Spanish repertoire
Reply #119 - 07/28/11 at 11:34:13
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MNb wrote on 07/28/11 at 03:49:49:
I'm not impressed by 10.b3 0-0-0 11.Bb2 Bd6.
Most challenging seems to be 10.0-0 0-0 11.d4 Bd6 indeed. Kramnik played 12.c3 but after Be6 had serious problems with Bc1. So I'd prefer 12.f4 and Black's only hope of survival are the opposite coloured Bishops (...Bxe5) combined with a light-square blockade.


This had been my thought exactly, so I'm happy to see you also think so.  My data base isn't handy to me just now, so      I have no idea if it's been tried, but I think that White after 12.f4 should aim for c4, Bd2-c3. Probably b3 is necessary.

But we need to examine what practice has been in this area.
  

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Re: Spanish repertoire
Reply #118 - 07/28/11 at 03:49:49
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I'm not impressed by 10.b3 0-0-0 11.Bb2 Bd6.
Most challenging seems to be 10.0-0 0-0 11.d4 Bd6 indeed. Kramnik played 12.c3 but after Be6 had serious problems with Bc1. So I'd prefer 12.f4 and Black's only hope of survival are the opposite coloured Bishops (...Bxe5) combined with a light-square blockade.
  

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Re: Spanish repertoire
Reply #117 - 07/28/11 at 00:33:12
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I am rather certain that 10...Bxc2 is bad.

After 10.O-O O-O 11.d4 I respectfully doubt Sokolov's claim that White will have trouble making progress. I used to play 5...Nf6 myself, and this is the line that caused me to drop it. I don't think that 6.Qe2 is nearly as troublesome for Black. We should look deeper, but under Principle 1, I would be reluctant to drop 6.Nxf6+.

10.b3 may be worth recommending as well.
  

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Re: Spanish repertoire
Reply #116 - 07/27/11 at 20:57:32
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Markovich wrote on 07/27/11 at 20:07:45:
Yeah, I guess it is about time to tackle 5...Nf6. And here I propose that 6.Nxf6+ Qxf6 7.Qe2 Be7 8.Bxc6 dxc6 9.Nxe5 Bf5 10.O-O! be our starting point, intending 10...O-O-O 11.d3 or 10...O-O 11.d4.

Maybe a good alternative: 10.b3!?, 100% in only two games: Weisenburger - Bissmann, corr. 2006 [jubilee tourn. of the German corr. federation]; and Bißmann (2357) -Arppi (2319), Baltic Sea Tournament 2008 (also a corr. tournament?). So it seems Bißmann was impressed by his loss in 2006! The PC gives (10.b3) Bxc2 11.Bb2 0-0 12.Rc1 Bf5, which also happened in the 2006 corr. game. Here 13.Nxc6 (+0.70 Ryb4) and 13.g4 (game) both look attractive. 

I see that 10.0-0 was played by the elite only recently and scores a proud 72% in 86 games. 

Fllg wrote on 07/27/11 at 20:39:42:
I remember this has been proposed by Emms in his fine book "Easy guido to the Ruy Lopez". He analysed the critical 10... Bxc2!? 11.d3 Ba4 12.b3 Bb5 13.Bb2 Qe6 14.Rfe1 when he wrote "there are still problems to solve". White threatens 15.Nxc6 here.

Sokolov considers Black to have enough compensation to hold after 10... 0-0 11.d4 Bd6 but only playing for a draw. On the other hand it is difficult to see how White can make progress. It´s at best a very very slight += due to the pawn up. There is more life in the lines after 6.Qe2 d5 7.Nxf6 gxf6 8.d4 but here Black also has more counterplay.

Instead of 12.b3, the computer likes 12.Nf3 +- (2.00).
In the 10... 0-0 11.d4 Bd6 line, the database submits 77 games (67% for White). In the ten games between 2500+ players, White won 3 times, 7 games were drawn.
  
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Re: Spanish repertoire
Reply #115 - 07/27/11 at 20:39:42
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Markovich wrote on 07/27/11 at 20:07:45:
[quote author=01022E4C0 link=1311509071/113#113 date=1311791326]Yeah, I guess it is about time to tackle 5...Nf6. And here I propose that 6.Nxf6+ Qxf6 7.Qe2 Be7 8.Bxc6 dxc6 9.Nxe5 Bf5 10.O-O! be our starting point, intending 10...O-O-O 11.d3 or 10...O-O 11.d4.


I remember this has been proposed by Emms in his fine book "Easy guido to the Ruy Lopez". He analysed the critical 10... Bxc2!? 11.d3 Ba4 12.b3 Bb5 13.Bb2 Qe6 14.Rfe1 when he wrote "there are still problems to solve". White threatens 15.Nxc6 here.

Sokolov considers Black to have enough compensation to hold after 10... 0-0 11.d4 Bd6 but only playing for a draw. On the other hand it is difficult to see how White can make progress. It´s at best a very very slight += due to the pawn up. There is more life in the lines after 6.Qe2 d5 7.Nxf6 gxf6 8.d4 but here Black also has more counterplay.
  
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Re: Spanish repertoire
Reply #114 - 07/27/11 at 20:07:45
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MNb wrote on 07/27/11 at 18:28:46:
Markovich wrote on 07/27/11 at 16:17:36:
Thank you. However, now it seems we've lost the alternatives to 5...e4.

The line 4...Nf6 5.exf5 Bc5 is still there. My books only give 5...Nd4 as a third option, which just transposes (White plays 6.Nxe5). So I'm afraid I don't get you.

Is it time to crack the really tough nut, 5...Nf6, already?

I must've missed that, sorry. Yeah, I guess it is about time to tackle 5...Nf6. And here I propose that 6.Nxf6+ Qxf6 7.Qe2 Be7 8.Bxc6 dxc6 9.Nxe5 Bf5 10.O-O! be our starting point, intending 10...O-O-O 11.d3 or 10...O-O 11.d4.
  

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Re: Spanish repertoire
Reply #113 - 07/27/11 at 18:28:46
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Markovich wrote on 07/27/11 at 16:17:36:
Thank you. However, now it seems we've lost the alternatives to 5...e4.

The line 4...Nf6 5.exf5 Bc5 is still there. My books only give 5...Nd4 as a third option, which just transposes (White plays 6.Nxe5). So I'm afraid I don't get you.

Is it time to crack the really tough nut, 5...Nf6, already?
  

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Re: Spanish repertoire
Reply #112 - 07/27/11 at 17:56:27
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Stefan Buecker wrote on 07/27/11 at 09:33:35:
Göran wrote on 07/27/11 at 08:51:21:
Please find the first version of 3..a5.

fling wrote on 07/27/11 at 06:29:05:
Actually, I have started looking at the Bird already (because I played against it Monday night), and ...a5 is a very interesting try in some of the lines there.

@Hacker: Excellent survey - you could straightaway change jobs and work for the editorial team of the NIC Yearbook. You only forgot "Use with caution - may hurt prejudices". 

@fling: Yes. My Groteske Schacheröffnungen had a chapter on Bird's original concept: Nd4 [Nxd4] exd4, c6, d5 [exd5] cxd5 [Bb5+] Kf8! followed by a5 and h5-h4, which I liked very much. This experience was one of my main motivations to study 3...a5 4.0-0 Nd4.


Thanks for your kind feedback. I was aiming for Kaissiber however. I understand though I have to be in practise at NIC Yearbook first for some time before being promoted to Kaissiber.
  

What kind of proof is that?
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Re: Spanish repertoire
Reply #111 - 07/27/11 at 16:22:38
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Stefan Buecker wrote on 07/27/11 at 13:31:33:
However, White has the novelty 16.Nc7! +/-, e.g.

(a) 16...Qxg2 17.Rf1 Rb8 18.Qd7+ Be7 19.Qe6+ Kf8 20.b3 Qxh2 21.Qf5+ Bf6 22.Ne6+ +/-.

(b) 16...Rc8 17.h3 Qf5 18.g4 Qc5 (lesser evil: 18...Bc5 +/-) 19.Qd7+ Ne7 20.d4 exd3 21.0-0 +-.

Typo correction: For 18...Qc5 read: 18...Qf6.
  
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Re: Spanish repertoire
Reply #110 - 07/27/11 at 16:17:36
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MNb wrote on 07/27/11 at 11:20:50:
I like 17.d4 exd3 18.Be3. Let's keep it.

After 11...Kd8 White perhaps can follow the same path as after 11...g6 ? I mean 11...Kd8 12.Qa5 (threatens something) Ke8 13.Qe5+ Kf7 14.Nb5 c6 15.Qd4. Of course Rh8 is not en prise anymore, but 15...Qe7 looks quite ugly now. In the only game I found Black tried 15...Qg4 16.Qb6 Qxg2 17.Rf1 Nf6 18.Qxb7+ Be7 19.Nd6+ Ke6 20.Nf5+ Kxf5 21.Qxe7 Rhe8 22.Qd6 Qf3 and won, Rohde-Ritter, corr 1992. But White should be fine here, don't you think?



Thank you. However, now it seems we've lost the alternatives to 5...e4.
  

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Re: Spanish repertoire
Reply #109 - 07/27/11 at 16:12:37
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Stefan Buecker wrote on 07/27/11 at 13:31:33:
[1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 dxe4 7.Nxc6 Qd5 8.c4 Qd6 9.Nxa7+ Bd7 10.Bxd7+ Qxd7 11.Qh5+]

MNb wrote on 07/27/11 at 11:20:50:
11...Kd8 12.Qa5 (threatens something) Ke8 13.Qe5+ Kf7 14.Nb5 c6 15.Qd4. Of course Rh8 is not en prise anymore, but 15...Qe7 looks quite ugly now. In the only game I found Black tried 15...Qg4 16.Qb6 Qxg2 17.Rf1 Nf6 18.Qxb7+ Be7 19.Nd6+ Ke6 20.Nf5+ Kxf5 21.Qxe7 Rhe8 22.Qd6 Qf3 and won, Rohde-Ritter, corr 1992. But White should be fine here, don't you think?

An excellent idea, clearly an improvement, and 13.Qe5+! is completely overlooked by Sokolov (who advises against Qa5!). I found two games Rohde - E. Ritter, corr. 1992 (0-1), and Kuhlmann - E. Ritter, corr. 1997 (drawn). In both games 16.Qb6 Qxg2? was played; correct would have been 16...Be7! unclear. 

However, White has the novelty 16.Nc7! +/-, e.g.

(a) 16...Qxg2 17.Rf1 Rb8 18.Qd7+ Be7 19.Qe6+ Kf8 20.b3 Qxh2 21.Qf5+ Bf6 22.Ne6+ +/-.

(b) 16...Rc8 17.h3 Qf5 18.g4 Qc5 (lesser evil: 18...Bc5 +/-) 19.Qd7+ Ne7 20.d4 exd3 21.0-0 +-. 

(c) 16...Rb8! 17.0-0 Nf6 18.c5 Qd7 19.Qc4+ Ke7 20.f3 Qxc7 21.fxe4

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For the sacrificed Knight c7, White has three pawns and a promising position. Maybe more can be proven, but += it certainly is.


That looks like good analysis to me. I looked more critical ideas for White and couldn't find any.
  

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Re: Spanish repertoire
Reply #108 - 07/27/11 at 14:16:33
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Good luck, TN!

FM Bücker (not Buecker) is certainly right that after 16.Qb6 Black should play the more precise Be7. Compare 17.Qxb7 Nf6 18.Nd4 and Black has avoided the transposition to the two corr. games, even if (s)he might not have entirely sufficient compensation. That's something I'm not going to find out because:
I like 16.Nc7 very much. If the Steinitz principle (hold on to your material) is not entirely satisfactory the defender should apply the Lasker principle (sac something back and generate lots of counterplay).  Smiley
  

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Re: Spanish repertoire
Reply #107 - 07/27/11 at 14:01:05
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I won't be able to compile the analyses from most of the 1.e4 e5 Spanish threads into PGN form because I am busy preparing for major chess tournaments. However once my tournaments conclude I will be able to put more energy into the project.
  

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Re: Spanish repertoire
Reply #106 - 07/27/11 at 13:31:33
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[1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 dxe4 7.Nxc6 Qd5 8.c4 Qd6 9.Nxa7+ Bd7 10.Bxd7+ Qxd7 11.Qh5+]

MNb wrote on 07/27/11 at 11:20:50:
11...Kd8 12.Qa5 (threatens something) Ke8 13.Qe5+ Kf7 14.Nb5 c6 15.Qd4. Of course Rh8 is not en prise anymore, but 15...Qe7 looks quite ugly now. In the only game I found Black tried 15...Qg4 16.Qb6 Qxg2 17.Rf1 Nf6 18.Qxb7+ Be7 19.Nd6+ Ke6 20.Nf5+ Kxf5 21.Qxe7 Rhe8 22.Qd6 Qf3 and won, Rohde-Ritter, corr 1992. But White should be fine here, don't you think?

An excellent idea, clearly an improvement, and 13.Qe5+! is completely overlooked by Sokolov (who advises against Qa5!). I found two games Rohde - E. Ritter, corr. 1992 (0-1), and Kuhlmann - E. Ritter, corr. 1997 (drawn). In both games 16.Qb6 Qxg2? was played; correct would have been 16...Be7! unclear. 

However, White has the novelty 16.Nc7! +/-, e.g.

(a) 16...Qxg2 17.Rf1 Rb8 18.Qd7+ Be7 19.Qe6+ Kf8 20.b3 Qxh2 21.Qf5+ Bf6 22.Ne6+ +/-.

(b) 16...Rc8 17.h3 Qf5 18.g4 Qc5 (lesser evil: 18...Bc5 +/-) 19.Qd7+ Ne7 20.d4 exd3 21.0-0 +-. 

(c) 16...Rb8! 17.0-0 Nf6 18.c5 Qd7 19.Qc4+ Ke7 20.f3 Qxc7 21.fxe4

* * * * * * * *
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* * * * * * * *
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* * * * * * * *
* * * * * * * *
* * * * * * * *

For the sacrificed Knight c7, White has three pawns and a promising position. Maybe more can be proven, but += it certainly is.
  
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Re: Spanish repertoire
Reply #105 - 07/27/11 at 11:20:50
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I like 17.d4 exd3 18.Be3. Let's keep it.

After 11...Kd8 White perhaps can follow the same path as after 11...g6 ? I mean 11...Kd8 12.Qa5 (threatens something) Ke8 13.Qe5+ Kf7 14.Nb5 c6 15.Qd4. Of course Rh8 is not en prise anymore, but 15...Qe7 looks quite ugly now. In the only game I found Black tried 15...Qg4 16.Qb6 Qxg2 17.Rf1 Nf6 18.Qxb7+ Be7 19.Nd6+ Ke6 20.Nf5+ Kxf5 21.Qxe7 Rhe8 22.Qd6 Qf3 and won, Rohde-Ritter, corr 1992. But White should be fine here, don't you think?

« Last Edit: 07/27/11 at 18:36:37 by MNb »  

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Re: Spanish repertoire
Reply #104 - 07/27/11 at 11:13:10
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MNb wrote on 07/27/11 at 10:29:29:
fling wrote on 07/27/11 at 06:32:44:
What about 14 ...c6, with the idea of preserving the bishop and putting it on g7? White can't play like in the main line.

Black already has played 13...c6.


Hm, I made a mistake, and somehow looked at b3 before ...c6 was played.
  
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Re: Spanish repertoire
Reply #103 - 07/27/11 at 10:53:37
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MNb wrote on 07/27/11 at 10:29:29:
fling wrote on 07/27/11 at 07:04:50:
It looks good for White, especially after 18. f3 I think., getting rid of the pawn on f3, or opening up the f-file.

I'm afraind not. After 18...Rd8 19.Nxe4 Nb3 or 19.fxe4+ Ke6 Black gets tons of counterplay.

Agreed. By the way, this was the last move in Sokolov's 2009 book: " ...18.f3 is better for White".

Perhaps 17.d4 is an improvement (upon 17.0-0), e.g. 17...exd3 18.Be3 +/-.

MNb wrote on 07/27/11 at 10:29:29:
[14...Qe7] is the usual move. After 15.Qxh8 Nf6 16.b3 (Keres) White is winning: 16...Rd8 17.Bb2 Bg7 18.Ba3 Boll-Grevlund, 1989 or 16...Re8 17.Ba3 Qd7 18.Bxf8 Rxf8 19.Qxf8+ Kxf8 20.Nc3 Balogh-Schardtner, corr 1963. There are several more examples of 14...Qe7 15.Qxh8. White wins most of them. Really, if the consensus is that White is better in my line after 14...Nf6 then we are done with 7...Qd6 too; 14...Rd8 15.Qxd7+ Rxd7 16.Nc3 Nf6 17.b3 is also close to winning.

Btw, 14...Qe7! is Sokolov's main line: "Trying to keep things messy. Other moves do not suffice either." 

In my opinion Black should play 11...Kd8 (instead of g6), e.g. 12.Nb5 Nf6 13.Qe2 Bc5 14.0.0 Re8 15.Nc3 Ra6 +=. There is some compensation for the two (!) pawns. Maybe not enough, but the chances are better than after 11...g6. 

Edit: Black scores 50% (in 32 games) with 11...Kd8 and even 75% (6 games) with 13...Bc5. Surprisingly, Sokolov (who enters this position in the different move order 10.Qh5+ Kd8 11.Bxd7+ Qxd7 ...) considers only 13...c6 (with insufficient comp.), which looks illogical.
  
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Re: Spanish repertoire
Reply #102 - 07/27/11 at 10:29:29
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fling wrote on 07/27/11 at 06:32:44:
What about 14 ...c6, with the idea of preserving the bishop and putting it on g7? White can't play like in the main line.

Black already has played 13...c6.

fling wrote on 07/27/11 at 07:04:50:
It looks good for White, especially after 18. f3 I think., getting rid of the pawn on f3, or opening up the f-file.

I'm afraid not. After 18...Rd8 19.Nxe4 Nb3 or 19.fxe4+ Ke6 Black gets tons of counterplay.

fling wrote on 07/27/11 at 07:04:50:
But instead of 14. ...Nf6, Black can play 14 ...Qe7.

That's the usual move. After 15.Qxh8 Nf6 16.b3 (Keres) White is winning: 16...Rd8 17.Bb2 Bg7 18.Ba3 Boll-Grevlund, 1989 or 16...Re8 17.Ba3 Qd7 18.Bxf8 Rxf8 19.Qxf8+ Kxf8 20.Nc3 Balogh-Schardtner, corr 1963. There are several more examples of 14...Qe7 15.Qxh8. White wins most of them. Really, if the consensus is that White is better in my line after 14...Nf6 then we are done with 7...Qd6 too; 14...Rd8 15.Qxd7+ Rxd7 16.Nc3 Nf6 17.b3 is also close to winning.
  

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Re: Spanish repertoire
Reply #101 - 07/27/11 at 09:50:45
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Stefan Buecker wrote on 07/27/11 at 09:33:35:


@fling: Yes. My Groteske Schacheröffnungen had a chapter on Bird's original concept: Nd4 [Nxd4] exd4, c6, d5 [exd5] cxd5 [Bb5+] Kf8! followed by a5 and h5-h4, which I liked very much. This experience was one of my main motivations to study 3...a5 4.0-0 Nd4.



Maybe you can think about 2nd edition of this book ?  Smiley
  

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Re: Spanish repertoire
Reply #100 - 07/27/11 at 09:33:35
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Göran wrote on 07/27/11 at 08:51:21:
Please find the first version of 3..a5.

fling wrote on 07/27/11 at 06:29:05:
Actually, I have started looking at the Bird already (because I played against it Monday night), and ...a5 is a very interesting try in some of the lines there.

@Hacker: Excellent survey - you could straightaway change jobs and work for the editorial team of the NIC Yearbook. You only forgot "Use with caution - may hurt prejudices". 

@fling: Yes. My Groteske Schacheröffnungen had a chapter on Bird's original concept: Nd4 [Nxd4] exd4, c6, d5 [exd5] cxd5 [Bb5+] Kf8! followed by a5 and h5-h4, which I liked very much. This experience was one of my main motivations to study 3...a5 4.0-0 Nd4.
  
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Re: Spanish repertoire
Reply #99 - 07/27/11 at 08:51:21
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Please find the first version of 3..a5.
I have had some problem vith the viewer so I up load the .pgn file only.

Will make some more tries with the viewer later today. Will also add some more engine results in the file later today.

Any comments are very welcomed and I will change accordingly.

  

Ruy_Lopez_3___a5_ver_10.pgn ( 2 KB | Downloads )

What kind of proof is that?
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Re: Spanish repertoire
Reply #98 - 07/27/11 at 07:04:50
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Markovich wrote on 07/26/11 at 21:26:08:
MNb wrote on 07/26/11 at 20:39:49:




punter wrote on 07/27/11 at 04:07:12:
Imo the line with 14.Qd4 is perfect and white has pleasant edge. Black definitely wouldn't go for this willingly.


It looks good for White, especially after 18. f3 I think., getting rid of the pawn on f3, or opening up the f-file.

But instead of 14. ...Nf6, Black can play 14 ...Qe7. If I were a pawn down, I'd like to keep my queen.
  
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Re: Spanish repertoire
Reply #97 - 07/27/11 at 06:32:44
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MNb wrote on 07/27/11 at 02:33:11:
OK then. The line I gave with 14.Qd4 still doesn't feel good. So I did a database research and found a game Quesada Perez-Gomes, Havana 2007. It went 14.b3 Rd8 15.Qf4+ Nf6 16.Bb2 Bg7 (Be7 is the same) 17.Bxf6 Bxf6 18.Nc3 and White went on to beat a higher rated opponent. I like the idea of exchanging the weakest piece. Is this an improvement?


What about 14 ...c6, with the idea of preserving the bishop and putting it on g7? White can't play like in the main line.
  
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Re: Spanish repertoire
Reply #96 - 07/27/11 at 06:29:05
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Stefan Buecker wrote on 07/26/11 at 21:57:05:
Markovich, it was clear from the beginning that this project can only work under strict guidance. Much, maybe all of the 3...a5 stuff is obsolete; you can cut or delete it, just as you wish. - You'll remember that I had a similar problem with the Kaissiber competition; we solved it by splitting it into the main thread and the chaotic chat thread. - In the spirit of the present thread it seems best to debate one line after another, and once a line has been pgn-finalized, the debate itself might just be deleted. 

A while ago you asked me what I thought was best against 3...a5, I gave my main line (see reply #44). Now you are asking me again. Put a += behind it, if you want.


Actually, I have started looking at the Bird already (because I played against it Monday night), and ...a5 is a very interesting try in some of the lines there. However, that could be another thread, I agree.
  
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Re: Spanish repertoire
Reply #95 - 07/27/11 at 04:07:12
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Imo the line with 14.Qd4 is perfect and white has pleasant edge. Black definitely wouldn't go for this willingly.
  
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Re: Spanish repertoire
Reply #94 - 07/27/11 at 02:33:11
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OK then. The line I gave with 14.Qd4 still doesn't feel good. So I did a database research and found a game Quesada Perez-Gomes, Havana 2007. It went 14.b3 Rd8 15.Qf4+ Nf6 16.Bb2 Bg7 (Be7 is the same) 17.Bxf6 Bxf6 18.Nc3 and White went on to beat a higher rated opponent. I like the idea of exchanging the weakest piece. Is this an improvement?
  

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Re: Spanish repertoire
Reply #93 - 07/26/11 at 22:50:33
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I think we'll lust lay 3...a5 aside for later consideration, then. The current order of business is the Jaenisch with 7...Qd5, after which we'lltake up 5...Nf6.
  

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Re: Spanish repertoire
Reply #92 - 07/26/11 at 21:57:05
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Markovich, it was clear from the beginning that this project can only work under strict guidance. Much, maybe all of the 3...a5 stuff is obsolete; you can cut or delete it, just as you wish. - You'll remember that I had a similar problem with the Kaissiber competition; we solved it by splitting it into the main thread and the chaotic chat thread. - In the spirit of the present thread it seems best to debate one line after another, and once a line has been pgn-finalized, the debate itself might just be deleted. 

A while ago you asked me what I thought was best against 3...a5, I gave my main line (see reply #44). Now you are asking me again. Put a += behind it, if you want.
  
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Re: Spanish repertoire
Reply #91 - 07/26/11 at 21:56:59
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Markovich wrote on 07/26/11 at 21:26:08:
It appears then that the next order of Jaenisch business is 5...Nf6.

I'd say 7...Qd5 first. Because of Radjabov I think 5...Nf6 is the main line of the Jänisch.
  

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Re: Spanish repertoire
Reply #90 - 07/26/11 at 21:26:08
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MNb wrote on 07/26/11 at 20:39:49:


Would you mind incorporating the material I suggested concerning 4...Nf6 5.exf5 e4?

It appears then that the next order of Jaenisch business is 5...Nf6.

Further, someone could start thinking about 3...Bc5, where my view is that 4.c3 is strongest.





  

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Re: Spanish repertoire
Reply #89 - 07/26/11 at 21:15:13
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Stefan Buecker wrote on 07/26/11 at 19:09:55:




However, after 5...Bc5! 6.Nf5 Black has an attractive additional idea, overlooked in my first analysis (because of my weaker move-order): 6...d5! 7.Nxg7+ (7.exd5 Bxf5 8.Qe2+ Qe7 9.dxc6 Qxe1+ 10.Kxe2 0-0-0 comp., or 7.Qxd5 Qxd5 8.exd5 Bxf5 9.dxc6 b6 comp.) 7...Kf8, for example:

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(a) 8.Nf5 Bxf5 9.exf5 Nd4! and I like Black's attacking chances (so "adding" a5/Bb5 to the well-known Scotch line Nf5 can even be good for Black: Nd4 attacks the Bb5). 

(b) 8.Nh5 Qh4 9.Ng3 Nf6 10.Nc3 Ng4 11.Rf1 Nd4 12.Be3 Nxe3 13.fxe3 Qxh2 14.Nge2 Nxb5 15.Qxd5 Qh4+ 16.Kd2 Qe7 17.Nxb5 Be6 with complications. 



Stefan, with the greatest respect, could we finish up on 3...a5? We need to take view on it and move on, either that or put it aside for later. Since you are the putative exert on the subject, I suggest you analyze it and come back when you have a pgn showing White's best play against it.

I feel safe in saying that many people would be happy to put aside work on 3...a5 at this point in the project, if no ready demonstration of += is available.
  

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Re: Spanish repertoire
Reply #88 - 07/26/11 at 20:39:49
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Markovich wrote on 07/26/11 at 21:26:08:
Would you mind incorporating the material I suggested concerning 4...Nf6 5.exf5 e4?

It's done.

Markovich wrote on 07/26/11 at 12:48:17:
Further after 3...f5 4.Nc3 Nf6 5.exf5 6.Ng5 d5 7.d3 h6 8.Ne6 Bxe6 9.fxe6 .Bb4 10.dxe4 dxe4 11.O-O Bxc3 12.bxc3 Qe7 13.Qe7

I have assumed you meant 13.Qe2.
« Last Edit: 07/26/11 at 21:54:35 by MNb »  

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Re: Spanish repertoire
Reply #87 - 07/26/11 at 19:09:55
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Markovich wrote on 07/26/11 at 11:31:31:
Stefan Buecker wrote on 07/26/11 at 08:10:10:
[...] That leaves 11...Qa5 12.Nb5 Bc5 13.Qxe4+ Kd8 14.Nd4 Re8 ... comp. (Sokolov). But 14.Nd4 is weak; imo 14.Qxb7 Rb8 15.Qxc7+ is +/-. 

11...Qa5 12.Nb5 Bc5 13. c3 +/- is my recollection of Ivanov and Kulagin, which I have unfortunately boxed away.

I had looked at 13.c3, 13.Qc4, 13.Rb1, in each case it is fair to write +/-. However, my line has the advantage to exchange queens, reducing Black's chances almost to zero. Looks more pragmatic to me, but of course 13.c3 isn't bad. 

Göran wrote on 07/26/11 at 15:44:33:

So far Houdini likes that line e.g. 6...c6  7.Be2 d5 8.exd5.
Any other thoughts which I may include in the pgn-file?

Which variation do you mean? Is this (1.e4 e5 2.Nf3 Nc6 3.Bb5 a5 4.d4 exd4 5.Nxd4 Nxd4 6.Qxd4) c6 7.Be2 d5 8.exd5? Looks positionally dubious for Black. I'd rather not take on d4 with the knight. 

fling wrote on 07/26/11 at 11:34:33:
Btw, back to the position. I would for sure pick White in this position.

That's why I gave 8...d6 as better. And in the meantime I've found another idea after 5...Bc5 (see below). 

Markovich wrote on 07/26/11 at 12:48:17:
1.e4 e5 2.Nf3 Nc6 3.Bb5 a5 4.d4 exd4 5.Nxd4 Qf6 may be worthy of consideration.

In my files I had in fact the move-order 5...Qf6 6.Nf5 Bc5, while 5...Bc5 6.Nf5 Qf6 only seemed to transpose. The move-order 5...Qf6 6.Nf5 could become "independent" after 6...g6 7.Ne3 Nge7 8.Nc3 Bg7, but this seems worse: 9.Ned5 Nxd5 10.Nxd5 Qd8 11.c3 0-0 12.h4!? and the fianchetto becomes a target for White. It makes more sense to combine a5 with Bc5. 

However, after 5...Bc5! 6.Nf5 Black has an attractive additional idea, overlooked in my first analysis (because of my weaker move-order): 6...d5! 7.Nxg7+ (7.exd5 Bxf5 8.Qe2+ Qe7 9.dxc6 Qxe1+ 10.Kxe2 0-0-0 comp., or 7.Qxd5 Qxd5 8.exd5 Bxf5 9.dxc6 b6 comp.) 7...Kf8, for example:

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(a) 8.Nf5 Bxf5 9.exf5 Nd4! and I like Black's attacking chances (so "adding" a5/Bb5 to the well-known Scotch line Nf5 can even be good for Black: Nd4 attacks the Bb5). 

(b) 8.Nh5 Qh4 9.Ng3 Nf6 10.Nc3 Ng4 11.Rf1 Nd4 12.Be3 Nxe3 13.fxe3 Qxh2 14.Nge2 Nxb5 15.Qxd5 Qh4+ 16.Kd2 Qe7 17.Nxb5 Be6 with complications. 

  
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Re: Spanish repertoire
Reply #86 - 07/26/11 at 15:44:33
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Markovich wrote on 07/26/11 at 12:48:17:
1.e4 e5 2.Nf3 Nc6 3.Bb5 a5 4.d4 exd4 5.Nxd4 Qf6 may be worthy of consideration.

...

So far Houdini likes that line e.g. 6...c6  7.Be2 d5 8.exd5.
Any other thoughts which I may include in the pgn-file?

Will get back tomorrow and with an pgn-file for review.
  

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Re: Spanish repertoire
Reply #85 - 07/26/11 at 12:48:17
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1.e4 e5 2.Nf3 Nc6 3.Bb5 a5 4.d4 exd4 5.Nxd4 Qf6 may be worthy of consideration.

Further after 3...f5 4.Nc3 Nf6 5.exf5, we should include consideration of 5...e4, a move not so simple to deal with otb. Sokolov argues persuasively that 6.Ng5 d5 (6...Nd4 7.d3) 7.d3 is the way to go. Quoting him, 7...h6 (7...Bf5 8.dxe4 dxe4 9.Qe2 Bd6 10. Bxc6 bxc6 11.Qc4 Kd7 (11...Qd7 12.Ngxe4) 12.Be3 Qg8 !3.Qa4 +/- Przepiorka - Tarrasch, Nuremberg 1906) 8.Ne6 Bxe6 9.fxe6 Qd6 (9...Bb4 10.dxe4 dxe4 11.O-O Bxc3 12.bxc3 Qe7 13.Qe7 +/-) 10. dxe4 Qxe6 11.O-O dxe4 12.Nxe4! and he goes on, but it is perhaps sufficient to stop here.

Versus 3...Bc5, I would advocate 4.c3.
« Last Edit: 07/26/11 at 15:29:57 by Markovich »  

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Re: Spanish repertoire
Reply #84 - 07/26/11 at 11:36:16
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Markovich wrote on 07/26/11 at 11:31:31:
11...Qa5 12.Nb5 Bc5 13. c3 +/- is my recollection of Ivanov and Kulagin, which I have unfortunately boxed away.

Don't bother; it's no big deal to include both.
  

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Re: Spanish repertoire
Reply #83 - 07/26/11 at 11:34:33
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Stefan Buecker wrote on 07/26/11 at 11:04:06:
Jupp53 wrote on 07/26/11 at 10:02:01:
@ 3. - a5

Maybe there's a second line to explore:

1. e4 e5 2. Nf3 Nc6 3. Bb5 a5 4. d4 exd4 5. Nxd4
a)5. .. Nf6  6. O-O Bc5 7. Be3 Bb6 8. Nc3 O-O 9. h3 Re8 10. Re1 and Rybka 4 offers .41
b) 5. .. Bc5 6. Nf5 Qf6 7. Nc3 Nge7 8. O-O O-O 9. Be3 d6 10. Nxe7+ Qxe7 11. Bxc5 dxc5 and though Houdini offers only .26 after 12. Bxc6 I'd prefer this with white more than an engine would do.

If there only were a possibility to ask Tarrasch what he thinks about your main line, after 12...bxc6. He once wrote that he doesn't really care about the pawn formation, what really mattered are the pieces. 

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But a while ago I discovered a rule of my own: when you have more open files than rooks, the charm of open files fades a bit.

There is even a third line: 4.c3 f5!, when White's Nb1 can no longer jump to its best square c3.


Very interesting rule. However, as you say, I guess the emphasis has to be on "a bit", since not every file is useful.

Anyway, just without analysing the move, I think 4.d4 looks really critical from a "classical" perspective - i.e. meeting a flank move with a counter in the center. After all, White's original idea in the Spanish has to be considered increased control over d4 and e5, no?

Btw, back to the position. I would for sure pick White in this position.
  
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Re: Spanish repertoire
Reply #82 - 07/26/11 at 11:31:31
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Stefan Buecker wrote on 07/26/11 at 08:10:10:
MNb wrote on 07/26/11 at 07:25:08:
Stefan Buecker wrote on 07/26/11 at 06:49:09:
However, 16...Nf6? in his analysis is a mistake. Black equalizes with 16...Qg8! 17.Qb3 Nc5 18.Nxc5 Bxc5 19.Rf7 Rd7 20.Rxd7 Qxb3 21.axb3 Kxd7 22.Ra4 Re8 23.b4 Bb6 24.Ra3 Rf8 25.Rh3 Bf2+ 27.Ke2 Bg1.

Granted. But 24.b3 (finally developing that Bishop) looks like an improvement to me. If Black follows the same plan with 24...Rf8 White has 25.b5 Rf2 26.bxc6+ bxc6 27.Rxe4 Rxg2 28.Ba3. So += still seems fair to me.
Do you have something better for White earlier on perhaps?

24.b3 Re5 is completely equal. 
You can recommend 13.0-0 Qc5+ when Sokolov only considers 14.Kh1? Qxc2 ... "with a better game for Black" (Sokolov). Instead, 14.Rf2! Qxc2 (else 15.Nc3) 15.d4 +=. I guess that Sokolov's attempts to prove comp. for two pawns have bigger flaws, but for our purpose one sound extra pawn is enough. Call it += since Black has a little something for it. 

That leaves 11...Qa5 12.Nb5 Bc5 13.Qxe4+ Kd8 14.Nd4 Re8 ... comp. (Sokolov). But 14.Nd4 is weak; imo 14.Qxb7 Rb8 15.Qxc7+ is +/-. 


11...Qa5 12.Nb5 Bc5 13. c3 +/- is my recollection of Ivanov and Kulagin, which I have unfortunately boxed away.
  

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Re: Spanish repertoire
Reply #81 - 07/26/11 at 11:04:06
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Jupp53 wrote on 07/26/11 at 10:02:01:
@ 3. - a5

Maybe there's a second line to explore:

1. e4 e5 2. Nf3 Nc6 3. Bb5 a5 4. d4 exd4 5. Nxd4
a)5. .. Nf6  6. O-O Bc5 7. Be3 Bb6 8. Nc3 O-O 9. h3 Re8 10. Re1 and Rybka 4 offers .41
b) 5. .. Bc5 6. Nf5 Qf6 7. Nc3 Nge7 8. O-O O-O 9. Be3 d6 10. Nxe7+ Qxe7 11. Bxc5 dxc5 and though Houdini offers only .26 after 12. Bxc6 I'd prefer this with white more than an engine would do.

If there only were a possibility to ask Tarrasch what he thinks about your main line, after 12...bxc6. He once wrote that he doesn't really care about the pawn formation, what really mattered are the pieces. 

* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *
* * * * * * * *

But a while ago I discovered a rule of my own: when you have more open files than rooks, the charm of open files fades a bit. So I don't know. It might be +=, or not. Anyway, I'd prefer to play 8...d6 (instead of your 8...0-0), e.g. 9.Nxe7 Qxe7 10.Nd5 Qd8, about +0.30. 

There is even a third line: 4.c3 f5!, when White's Nb1 can no longer jump to its best square c3.
  
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Re: Spanish repertoire
Reply #80 - 07/26/11 at 10:37:02
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Quote MNb "I agree. I will post a PGN-file of 3...f5 every two pages, unless there are no developments. Now if somebody could do the same with 3...a5 ?"

I will put it into .pgn and publish it tomorrow morning.
  

What kind of proof is that?
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Re: Spanish repertoire
Reply #79 - 07/26/11 at 10:24:10
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fling wrote on 07/26/11 at 09:28:10:
Göran wrote on 07/26/11 at 09:12:51:
Relic from yesterday.

edit: 5.Nxd4 ed4 6.Bc4 (+0,41) c6 7.a4 (7.a3) could be a bit high so I've started an IDeA project with 7,a4, 7.a3 and 7.Re1 (Houdini's current suggestion)


Sorry to interrupt, but this thread is so interesting that I have to say something.

I think that we need to either refer to the original post, or post whole lines or PGN-files to clearly keep track of what the analysis is about. It will make the discussion quicker IMO.

We already have several posts asking "what do you actually mean?". Normally, this is probably ok, but we are already at page 5 of the thread and only a few lines have been discussed.


Agree to that. 
  

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Re: Spanish repertoire
Reply #78 - 07/26/11 at 10:21:02
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Stefan Buecker wrote on 07/26/11 at 08:10:10:
24.b3 Re5 is completely equal. 
You can recommend .....
That leaves .... 

I'll add your lines as soon we have reached the next page. They look good enough.

fling wrote on 07/26/11 at 09:24:18:
OT: What was the solution?

Put sidelines, subsidelines etc. between () and not between [].
You can get an example by klicking the quote button of a post with an analyzed game.

fling wrote on 07/26/11 at 09:28:10:
I think that we need to either refer to the original post, or post whole lines or PGN-files to clearly keep track of what the analysis is about. It will make the discussion quicker IMO.

I agree. I will post a PGN-file of 3...f5 every two pages, unless there are no developments. Now if somebody could do the same with 3...a5 ?
  

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Re: Spanish repertoire
Reply #77 - 07/26/11 at 10:02:01
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@ 3. - a5

Maybe there's a second line to explore:

1. e4 e5 2. Nf3 Nc6 3. Bb5 a5 4. d4 exd4 5. Nxd4
a)5. .. Nf6  6. O-O Bc5 7. Be3 Bb6 8. Nc3 O-O 9. h3 Re8 10. Re1 and Rybka 4 offers .41
b) 5. .. Bc5 6. Nf5 Qf6 7. Nc3 Nge7 8. O-O O-O 9. Be3 d6 10. Nxe7+ Qxe7 11. Bxc5 dxc5 and though Houdini offers only .26 after 12. Bxc6 I'd prefer this with white more than an engine would do.
  

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Re: Spanish repertoire
Reply #76 - 07/26/11 at 09:43:48
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Göran wrote on 07/26/11 at 09:12:51:
Relic from yesterday.

[1.e4 e5 2.Nf3 Nc6 3.Bb5 a5 4.0-0 Nd4]
edit: 5.Nxd4 ed4 6.Bc4 (+0,41) c6 7.a4 (7.a3) could be a bit high so I've started an IDeA project with 7,a4, 7.a3 and 7.Re1 (Houdini's current suggestion)

Thanks. My old analysis of 7.Re1 goes: 7...b5 8.Bf1 Bc5 9.Qg4 Kf8 10.a4 d6 11.Qg3 b4 12.h3 h5 13.d3 h4 +0.30 (Ryb4). 

In an earlier post I had also given details after 7.a4. The final position (it was 14...Qb6, I think) might be relevant. 
  
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Re: Spanish repertoire
Reply #75 - 07/26/11 at 09:28:10
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Göran wrote on 07/26/11 at 09:12:51:
Relic from yesterday.

edit: 5.Nxd4 ed4 6.Bc4 (+0,41) c6 7.a4 (7.a3) could be a bit high so I've started an IDeA project with 7,a4, 7.a3 and 7.Re1 (Houdini's current suggestion)


Sorry to interrupt, but this thread is so interesting that I have to say something.

I think that we need to either refer to the original post, or post whole lines or PGN-files to clearly keep track of what the analysis is about. It will make the discussion quicker IMO.

We already have several posts asking "what do you actually mean?". Normally, this is probably ok, but we are already at page 5 of the thread and only a few lines have been discussed.
  
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Re: Spanish repertoire
Reply #74 - 07/26/11 at 09:24:18
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MNb wrote on 07/25/11 at 20:02:13:
Got it.

Now I only have to learn what the codes for ±, = are etcetera.


OT: What was the solution? And does anyone have a fix for the evaluation codes?
  
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Re: Spanish repertoire
Reply #73 - 07/26/11 at 09:12:51
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Relic from yesterday.

edit: 5.Nxd4 ed4 6.Bc4 (+0,41) c6 7.a4 (7.a3) could be a bit high so I've started an IDeA project with 7,a4, 7.a3 and 7.Re1 (Houdini's current suggestion)
  

What kind of proof is that?
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Re: Spanish repertoire
Reply #72 - 07/26/11 at 09:10:09
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Göran wrote on 07/26/11 at 08:28:24:
Ruy Lopez 3...a5
(1.e4 e5 2.Nf3 Nc6 3.Bb5 a5)
Houdini 1.5a runnung over night on a 2 core machine.

It seams to be +/=


1.e4 e5 2.Nf3 Nc6 3.Bb5 a5 

     Houdini's initial suggestion     
     4.0-0 Nd4 5.Bc4 (+0,37) Nxf3 6.Qxf3 

                         Stefan Bücker's prop to investigate
                         6...Qf6 7.Qe3 c6 (+0,37) 8.Nc3 b5 9.Be2

             MNb's and TN's initial suggestion
             5.Nxd4 ed4 6.Bc4 (+0,41) c6 7.a4 (7.a3)

             Stefan Bücker's initial main line
             5.Nxd4 exd4 6.c3 (+0.33) c6 (Bc5) 7.Bc4 (7.Be2 d5) 7...b5 8.Bd3 Bc5 
             9.Na3 d6 (Ne7) 10. Nc2 Qf6 (dxc3) 11.cxd4 Bxd4 12.Nxd4 Qxd4 13.Qc2 Ne7
                          14.a4 (+0,29) b4 15.b3 Be6 (Qxa1?!) 
                          14.Qc3 (0,33) Qxc3 15.dxc3 Be6


Good - so 3...a5 is better than the Jaenisch!  Cool

Is 8.Nc3 b5 9.Be2 a relic from yesterday or is it the result of the analysis?
  
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Re: Spanish repertoire
Reply #71 - 07/26/11 at 08:48:32
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Stefan Buecker wrote on 07/26/11 at 06:49:09:

Edit: I am no expert of the Jaenisch. But since Sokolov explicitly says that he "analyzed 11.f4 for a while", this material "looks" indeed like his own analysis. (The book has no bibliography - do these publishers never learn?)


To be honest I own that book and Sokolov seems one of those GM's that does his own work and doesn't really looks into other opening manuals (expect perhaps for informants). This is a sentiment I have seen expressed by numerous GM's: give me a database and an old book, the rest I'll figure out myself (probably a strong chess engine will also be a par tof this approach nowadays).
  
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Re: Spanish repertoire
Reply #70 - 07/26/11 at 08:28:24
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Ruy Lopez 3...a5
(1.e4 e5 2.Nf3 Nc6 3.Bb5 a5)
Houdini 1.5a runnung over night on a 2 core machine.

It seams to be +/=


1.e4 e5 2.Nf3 Nc6 3.Bb5 a5 

     Houdini's initial suggestion      
     4.0-0 Nd4 5.Bc4 (+0,37) Nxf3 6.Qxf3 

                         Stefan Bücker's prop to investigate
                         6...Qf6 7.Qe3 c6 (+0,37) 8.Nc3 b5 9.Be2

             MNb's and TN's initial suggestion
             5.Nxd4 ed4 6.Bc4 (+0,41) c6 7.a4 (7.a3)

             Stefan Bücker's initial main line
             5.Nxd4 exd4 6.c3 (+0.33) c6 (Bc5) 7.Bc4 (7.Be2 d5) 7...b5 8.Bd3 Bc5 
             9.Na3 d6 (Ne7) 10. Nc2 Qf6 (dxc3) 11.cxd4 Bxd4 12.Nxd4 Qxd4 13.Qc2 Ne7
                          14.a4 (+0,29) b4 15.b3 Be6 (Qxa1?!) 
                          14.Qc3 (0,33) Qxc3 15.dxc3 Be6

  

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Re: Spanish repertoire
Reply #69 - 07/26/11 at 08:10:10
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MNb wrote on 07/26/11 at 07:25:08:
Stefan Buecker wrote on 07/26/11 at 06:49:09:
However, 16...Nf6? in his analysis is a mistake. Black equalizes with 16...Qg8! 17.Qb3 Nc5 18.Nxc5 Bxc5 19.Rf7 Rd7 20.Rxd7 Qxb3 21.axb3 Kxd7 22.Ra4 Re8 23.b4 Bb6 24.Ra3 Rf8 25.Rh3 Bf2+ 27.Ke2 Bg1.

Granted. But 24.b3 (finally developing that Bishop) looks like an improvement to me. If Black follows the same plan with 24...Rf8 White has 25.b5 Rf2 26.bxc6+ bxc6 27.Rxe4 Rxg2 28.Ba3. So += still seems fair to me.
Do you have something better for White earlier on perhaps?

24.b3 Re5 is completely equal. 
You can recommend 13.0-0 Qc5+ when Sokolov only considers 14.Kh1? Qxc2 ... "with a better game for Black" (Sokolov). Instead, 14.Rf2! Qxc2 (else 15.Nc3) 15.d4 +=. I guess that Sokolov's attempts to prove comp. for two pawns have bigger flaws, but for our purpose one sound extra pawn is enough. Call it += since Black has a little something for it. 

That leaves 11...Qa5 12.Nb5 Bc5 13.Qxe4+ Kd8 14.Nd4 Re8 ... comp. (Sokolov). But 14.Nd4 is weak; imo 14.Qxb7 Rb8 15.Qxc7+ is +/-.
  
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Re: Spanish repertoire
Reply #68 - 07/26/11 at 07:25:08
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Stefan Buecker wrote on 07/26/11 at 06:49:09:
However, 16...Nf6? in his analysis is a mistake. Black equalizes with 16...Qg8! 17.Qb3 Nc5 18.Nxc5 Bxc5 19.Rf7 Rd7 20.Rxd7 Qxb3 21.axb3 Kxd7 22.Ra4 Re8 23.b4 Bb6 24.Ra3 Rf8 25.Rh3 Bf2+ 27.Ke2 Bg1.

Granted. But 24.b3 (finally developing that Bishop) looks like an improvement to me. If Black follows the same plan with 24...Rf8 White has 25.b5 Rf2 26.bxc6+ bxc6 27.Rxe4 Rxg2 28.Ba3. So += still seems fair to me.
Do you have something better for White earlier on perhaps?

Jonathan Tait wrote on 07/26/11 at 07:20:42:
It's good for White, sure, but it's not such a simple matter to win.

Again granted, but that's not the point of this thread. The point is to build a repertoire for White with 3.Bb5. So again the question is: do you have something better for White perhaps? If not, this line remains our choice.
  

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Re: Spanish repertoire
Reply #67 - 07/26/11 at 07:20:42
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MNb wrote on 07/25/11 at 03:30:00:
We already know that 3...f5 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 dxe4 7.Nxc6 Qg5 8.Qe2 Nf6 9.Nxa7+ Bd7 10.Bxd7+ Nxd7 11.f4 Qc5 12.Nb5 Qxc2 13.d4! is very pleasant for White.


It's good for White, sure, but it's not such a simple matter to win.


edit: games removed as irrelevant to the thread
« Last Edit: 07/26/11 at 10:30:15 by Jonathan Tait »  

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Re: Spanish repertoire
Reply #66 - 07/26/11 at 06:49:09
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Markovich wrote on 07/25/11 at 21:43:49:

If he means 11...Qf5, he'll have to explain how Black lives after 12.Nb5 O-O-O 13.a4 and I'm going to ram that little a-guy right down to a6.


MNb wrote on 07/26/11 at 02:06:27:
11...Qf5 12.Nb5 O-O-O 13.Qc4 c6 14.Nd4 Qxf4 15.Ne6 Qf7 16.Rf1 Nf6 indeed seems += after 17.b3. There are more ambitious tries (notably 13.g4 and 12.g4) but they also look more risky. So let's stick to the GM's opinion indeed. I have added the line in my post above and made it the main line of 7...Qg5.

When I studied 3...Bc5, I didn't find Sokolov's analysis in the last part of The Ruy Lopez Revisited (2009) very useful. But his 6-page analysis of 11.f4 here in the Jaenisch is excellent and "grandmasterly". It is on pp. 36-42 - so he was probably still full of energy Smiley . Not so nice is the awful organization of the material - how can you give the two best lines 11...Qf5 as "C33" and 11...Qa5 as "C35", but C31, C32 and C34 cover insufficient black alternatives?

Regarding 13.a4 (Markovich): Sokolov analyzes this on 2.5 pages  (pp. 38-40), e.g. 13...Bc5 14.a5 c6 15.Nc3 Rhe8 16.a6 b5 17.Rf1, ending with 29...h5 "and Black keeps pressure - it is difficult for White to coordinate his pieces." HIs conclusion is that 13.Qc4 may be best. 

However, 16...Nf6? in his analysis is a mistake. Black equalizes with 16...Qg8! 17.Qb3 Nc5 18.Nxc5 Bxc5 19.Rf7 Rd7 20.Rxd7 Qxb3 21.axb3 Kxd7 22.Ra4 Re8 23.b4 Bb6 24.Ra3 Rf8 25.Rh3 Bf2+ 27.Ke2 Bg1. 

In my opinion key ideas in the pgn should be credited. Sokolov advises against practically all moves played in the database, but regards 11...Qa5 (so far no game!) as giving Black sufficient compensation, and analyzes 11...Qf5 in even greater detail. With the latter move, I see only one computer game: 12.Nb5 0-0-0 13.0-0 Qc5+ (later drawn). His analyses are not perfect, but that's not the point. The repertoire may or may not become a relevant source, but without basic infos it wouldn't be half as useful as it could be.

Edit: I am no expert of the Jaenisch. But since Sokolov explicitly says that he "analyzed 11.f4 for a while", this material "looks" indeed like his own analysis. (The book has no bibliography - do these publishers never learn?)
  
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Re: Spanish repertoire
Reply #65 - 07/26/11 at 02:06:27
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Markovich wrote on 07/25/11 at 23:50:35:
Do you realize that you're talking about the 9.Nxa7+ variation?

Probably yes:

punter wrote on 07/25/11 at 22:18:20:
I am not aware if any human played it though as I don't have any human database to look it up.

Punter is talking about computer vs. computer games, which I don't save in my database. Indeed Rybka prefers 11...Qf5 iso 11...Qc5 too.

11...Qf5 12.Nb5 O-O-O 13.Qc4 c6 14.Nd4 Qxf4 15.Ne6 Qf7 16.Rf1 Nf6 indeed seems += after 17.b3. There are more ambitious tries (notably 13.g4 and 12.g4) but they also look more risky. So let's stick to the GM's opinion indeed. I have added the line in my post above and made it the main line of 7...Qg5.

In the end 5...Nf6 will be the main line because of the Jänisch because of Radjabov.
  

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Re: Spanish repertoire
Reply #64 - 07/26/11 at 00:48:25
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Actually, I think we'll just follow Sokolov and declare that 11...Qf5 12.Nb5 O-O-O 13.Qc4 c6 !4.Nd4 Qxf4 15.Ne6 Qf7 16.Rf1 Nf6 is +=. Unless anyone has anything further, that is.
  

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Re: Spanish repertoire
Reply #63 - 07/25/11 at 23:50:35
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punter wrote on 07/25/11 at 22:18:20:
Quote:
6.Nxe5 dxe4 7.Nxc6 Qd5
[7...Qg5 8.Qe2 Nf6 9.Nxa7+ Bd7 10.Bxd7+ Nxd7 11.f4 Qc5 12.Nb5 Qxc2 13.d4±]


Sorry, I meant this line, I pasted the wrong one. Here the move for black is 11..Qf5 etc.
It has been played before hundred of times already and black is doing fine. I am not aware if any human played it though as I don't have any human database to look it up Smiley

I am not aware what is pet variation you are talking about but Qf5 is the mainline here. Of course not known line ends in clear += in Janisch, wtf is this thinking, if there was such a line nobody would play Janisch anymore at the highest level. Same go for whole Spanish what we can hope is slightly more pleasant position for white and that's about it.
Giving a line which ends in +/- (as the one with Qc5) only proves that there were some dubious moves on the way.

Do you realize that you're talking about the 9.Nxa7+ variation? And if that is the case, may I suggest that you bring some (a) analysis and (b) sources?
  

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Re: Spanish repertoire
Reply #62 - 07/25/11 at 22:18:20
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Quote:
6.Nxe5 dxe4 7.Nxc6 Qd5
[7...Qg5 8.Qe2 Nf6 9.Nxa7+ Bd7 10.Bxd7+ Nxd7 11.f4 Qc5 12.Nb5 Qxc2 13.d4±]


Sorry, I meant this line, I pasted the wrong one. Here the move for black is 11..Qf5 etc.
It has been played before hundred of times already and black is doing fine. I am not aware if any human played it though as I don't have any human database to look it up Smiley

I am not aware what is pet variation you are talking about but Qf5 is the mainline here. Of course not known line ends in clear += in Janisch, wtf is this thinking, if there was such a line nobody would play Janisch anymore at the highest level. Same go for whole Spanish what we can hope is slightly more pleasant position for white and that's about it.
Giving a line which ends in +/- (as the one with Qc5) only proves that there were some dubious moves on the way.
  
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Re: Spanish repertoire
Reply #61 - 07/25/11 at 21:43:49
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MNb wrote on 07/25/11 at 19:34:35:
MNb wrote on 07/25/11 at 16:18:41:
[7...Qg5 8.Qe2 Nf6 9.Nxa7+ Bd7 10.Bxd7+ Nxd7 11.f4 Qc5 12.Nb5 Qxc2 13.d4±

Punter possibly means 11...Qf5 12.Nb5 0-0-0 which never has been played before. I would like to see some of his analysis after 13.a4 and 13.0-0.

I would like to keep track of all the 3...f5 stuff. But as indicated above I have problems with the pgn-code for the subvariations at the moment.
I certainly don't know how to create a pgn-file as an attachment.

@Markovich:
all the best again.
I think we should not be too strict on your 12-moves limit. Some of the lines I gave above would not make sense if I cut them off. I think it's more fruitful only to give the relevant lines. In my post above Black still has quite a few unmentioned deviations, but anyone can find in a book or in a database how they should be dealt with.

If he means 11...Qf5, he'll have to explain how Black lives after 12.Nb5 O-O-O 13.a4 and I'm going to ram that little a-guy right down to a6.

I take your point about not being too rigid about 12 moves. What I want to ensure though is that we complete a high-level review of the entire Spanish before we go very deep anywhere. If anyone distracts from that by defending his pet variation to the death, I'll just cut him off.

Our rule for not considering some black option should not be that it can be found in a book, but that it fairly obviously produces += or better.
  

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Re: Spanish repertoire
Reply #60 - 07/25/11 at 20:02:13
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Got it.



Now I only have to learn what the codes for ±, = are etcetera.
« Last Edit: 07/26/11 at 02:07:41 by MNb »  

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Re: Spanish repertoire
Reply #59 - 07/25/11 at 19:34:35
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MNb wrote on 07/25/11 at 16:18:41:
[7...Qg5 8.Qe2 Nf6 9.Nxa7+ Bd7 10.Bxd7+ Nxd7 11.f4 Qc5 12.Nb5 Qxc2 13.d4±

Punter possibly means 11...Qf5 12.Nb5 0-0-0 which never has been played before. I would like to see some of his analysis after 13.a4 and 13.0-0.

I would like to keep track of all the 3...f5 stuff. But as indicated above I have problems with the pgn-code for the subvariations at the moment.
I certainly don't know how to create a pgn-file as an attachment.

@Markovich:
all the best again.
I think we should not be too strict on your 12-moves limit. Some of the lines I gave above would not make sense if I cut them off. I think it's more fruitful only to give the relevant lines. In my post above Black still has quite a few unmentioned deviations, but anyone can find in a book or in a database how they should be dealt with.
  

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Re: Spanish repertoire
Reply #58 - 07/25/11 at 18:53:28
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punter wrote on 07/25/11 at 17:55:42:
Quote:
1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4
(4...Nf6 5.exf5 Bc5 6.0-0 0-0 7.Nxe5 Nd4 8.Nf3 Nxb5 9.Nxb5 d5 10.Nbd4 Ng4 11.h3 Ne5 12.Nxe5 Bxd4 13.Nf3 Bb6 14.g4 Qf6 15.d4 Bxf5 16.gxf5 Qxf5 17.Ne5 Rae8 18.Qg4+-;


Sweet, but the move for black is 12...Qf5 not 12...Qc5 and after 13.Nb5 0-0-0 a lot more theory but black is doing just fine.


Since there is no 12...Qc5 in the passage you quote, I can't tell what you're talking about, so please say.

@hacker: what we will require is a standard pgn file for each major line we consider. The Jaenisch is such a line, so take MNb's contribution and turn it into pgn. Then modify as necessary as others contribute.  I believe we can attach pgn files here, so publish what you have after each major revision, with indicative title (e.g. Jaenisch) and date of revision.

@everyone: remember that we only need 12 moves deep the first time through. Add more only if you are fairly certain that what your're adding will be the last word.






« Last Edit: 07/25/11 at 21:11:20 by Markovich »  

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Re: Spanish repertoire
Reply #57 - 07/25/11 at 17:59:45
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Markovich wrote on 07/25/11 at 15:56:58:
TN wrote on 07/25/11 at 14:30:08:
Edit: My GM friend uses his repertoire file for coaching so I can't just steal from his file for our repertoire file.


Well then, this somewhere-existing file isn't useful to us.

@everyone: Who's going to start keeping notes (in pgn, I would suggest)? Normally I'd be happy to, but I'm convalescing after a week in the hospital following an outpatient procedure that accidentally injured me rather badly (I am however expected to make a complete recovery)


Nobody seams to have noticed your post. 

I don't know if I am up to it. Haven't done this kind of investigation befor and certainly not this kind of documentation. I haven't a clue how to document it.

Since I intended to learn more about the Ruy Lopez and like ChessPub Forum a lot  I am willing to at least start if 1) Markovich will help me out in the beginning and if 2) anybody that think the documentation will have a too low standard will frankly tell me and be so kind and advice me.

I don't mind at all if anyone more experienced will do the documentation.
  

What kind of proof is that?
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Re: Spanish repertoire
Reply #56 - 07/25/11 at 17:55:42
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Quote:
1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4
(4...Nf6 5.exf5 Bc5 6.0-0 0-0 7.Nxe5 Nd4 8.Nf3 Nxb5 9.Nxb5 d5 10.Nbd4 Ng4 11.h3 Ne5 12.Nxe5 Bxd4 13.Nf3 Bb6 14.g4 Qf6 15.d4 Bxf5 16.gxf5 Qxf5 17.Ne5 Rae8 18.Qg4+-;


Sweet, but the move for black is 12...Qf5 not 12...Qc5 and after 13.Nb5 0-0-0 a lot more theory but black is doing just fine.
  
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Re: Spanish repertoire
Reply #55 - 07/25/11 at 16:18:41
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OK, a summary on 3...f5 so far:

1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 fxe4
(4...Nf6 5.exf5 Bc5 6.0-0 0-0 7.Nxe5 Nd4 8.Nf3 Nxb5 9.Nxb5 d5 10.Nbd4 Ng4 11.h3 Ne5 12.Nxe5 Bxd4 13.Nf3 Bb6 14.g4 Qf6 15.d4 Bxf5 16.gxf5 Qxf5 17.Ne5 Rae8 18.Qg4+-; 
4...Nd4 5.exf5 (5.Bc4) 5...c6 (5...Nf6) 6.Nxd4 exd4 7.Qh5+ Ke7 8.O-O Nf6 (8...dxc3 9.d4±) 9.Re1+ Kd6 10.Ne4+ Nxe4 11.Rxe4 cxb5 12.d3 Kc6 13.Bg5±)

5.Nxe4 d5
[5...Nf6]

6.Nxe5 dxe4 7.Nxc6 Qd5
[7...Qg5 8.Qe2 Nf6 9.Nxa7+ Bd7 10.Bxd7+ Nxd7 11.f4 Qc5 12.Nb5 Qxc2 13.d4±]

8.c4 Qd6 9.Nxa7+ Bd7 10.Bxd7+ Qxd7 11.Qh5+ g6 12.Qe5+ Kf7 13.Nb5 c6 14.Qd4 Nf6 15.Qxd7+ Nxd7 16.Nc3 Nc5 17.0-0 Bg7÷

For some reason I don't get the subvariations on the board.
« Last Edit: 07/25/11 at 19:13:18 by MNb »  

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Re: Spanish repertoire
Reply #54 - 07/25/11 at 16:16:31
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Either 11...d6 or 11...Re8! seem more precise (than Nb4), =. 

The move a3 takes away the square a3 for the knight, so it seems less natural here. 

To be fair, at the end of my line (14...Qb6), White does stand better.
  
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Re: Spanish repertoire
Reply #53 - 07/25/11 at 16:02:31
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OK, so in the Jänisch only 7...Qd5 and 5...Nf6 are still open.

Stefan Buecker wrote on 07/25/11 at 15:12:08:
3...Nd4 4.Nxd4 exd4 5.0-0 a5: 9 games in my database: +5, =3, -1 (72%). I had looked at 6.Bc4 c6 7.a4 (more logical than 7.a3, no?), but wasn't convinced: 7...Nf6 8.Re1 Bc5 9.e5 Nd5 10.Bxd5 cxd5 11.Na3 0-0 12.Nb5 d6 13.Nxd6 d3! 14.cxd3 Qb6, about =.   

I agree with you on 7.a4 vs. 7.a3, but liked to see it confirmed by a much stronger player than I am.
10.d3 0-0 11.Qf3 Nb4 12.Na3 d5 13.exd6 Qxd6 14.c3 and White is somewhat better.
  

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Re: Spanish repertoire
Reply #52 - 07/25/11 at 15:56:58
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TN wrote on 07/25/11 at 14:30:08:
Edit: My GM friend uses his repertoire file for coaching so I can't just steal from his file for our repertoire file.


Well then, this somewhere-existing file isn't useful to us.

@everyone: Who's going to start keeping notes (in pgn, I would suggest)? Normally I'd be happy to, but I'm convalescing after a week in the hospital following an outpatient procedure that accidentally injured me rather badly (I am however expected to make a complete recovery)
  

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Re: Spanish repertoire
Reply #51 - 07/25/11 at 15:42:20
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MNb wrote on 07/25/11 at 10:31:50:
8.d4 is illegal. So is 9.d4 after 8...Nf6 (iso 8...dxc3). So could you check too what Sokolov has to say about 8...Nf6 ?


As you suggested, the line is 8 ...Nf6 9. Re1+ Kd6 10. Ne4+! Nxe4 11. Rxe4 cxb5 12. d3 Kc6 13.Bg5 Qc7 14. Qe8! b6 15. f6 and now 15 ...Bb7? but this really loses. Black still is worse after any other move, like 15 ...Qd6 followed by 16.a4.
  
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Re: Spanish repertoire
Reply #50 - 07/25/11 at 15:32:52
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Göran wrote on 07/25/11 at 13:23:10:
As I understand it the process of reaching the goal (activate the section) is as important as the goal itself. 

Concerning Sokolov and 5.Bc4
The move order 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 Nd4 is not accurate for Black. Now 5.Bc4 is not that dangerous for Black (5.exf5 better). He should be fine after precise play e.g. 5 Bc4 d6 (or 5...c6!?) 

1) 6.exf5 Bxf5 7.Nxd4 exd4 8.Qf3 Ne7 9.Nb5 d5 10.Be2 Qd7 11.Nxd4 0-0-0 and Black has play for the pawn.
2) 6.d3 Nxf3+ 7.Qf3 Nf6 8.Bg5 c6 9.0-0-0 where 9...h6  leads to an unclear game and 9...f4! is better for Black after 10.g3 h6 11.Bxf6 Qxf4+ 13.Qxf4 exf4 14.h4 Bg4 15.Rdg1 h5 16.d4 Be7.

Hope it's what fling refered to.


That is correct.
  
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Re: Spanish repertoire
Reply #49 - 07/25/11 at 15:12:08
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MNb wrote on 07/25/11 at 14:45:42:
3...a5
Stefan Buecker wrote on 07/25/11 at 13:54:38:
In the four games in the database with 4.0-0 Nd4, Black scored 62%. It is a kind of Bird's Variation, where a7-a5 is often useful.

OK. The main line against the Spanish Bird begins with 3...Nd4 4.Nxd4 exd4 5.0-0. Why should 5...a5 be useful here? I have found three games with this; White scores 2½ points.

Stefan Buecker wrote on 07/25/11 at 14:24:33:
There are several lines, none of them a clear refutation.

I think establishing a solid edge is enough.
6.Bc4 c6 7.a4 and 7.a3 look sufficient for this.

3...Nd4 4.Nxd4 exd4 5.0-0 a5: 9 games in my database: +5, =3, -1 (72%). I had looked at 6.Bc4 c6 7.a4 (more logical than 7.a3, no?), but wasn't convinced: 7...Nf6 8.Re1 Bc5 9.e5 Nd5 10.Bxd5 cxd5 11.Na3 0-0 12.Nb5 d6 13.Nxd6 d3! 14.cxd3 Qb6, about =.   
  
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Re: Spanish repertoire
Reply #48 - 07/25/11 at 14:45:42
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3...a5
Stefan Buecker wrote on 07/25/11 at 13:54:38:
In the four games in the database with 4.0-0 Nd4, Black scored 62%. It is a kind of Bird's Variation, where a7-a5 is often useful.

OK. The main line against the Spanish Bird begins with 3...Nd4 4.Nxd4 exd4 5.0-0. Why should 5...a5 be useful here? I have found three games with this; White scores 2½ points.

Stefan Buecker wrote on 07/25/11 at 14:24:33:
There are several lines, none of them a clear refutation.

I think establishing a solid edge is enough.
6.Bc4 c6 7.a4 and 7.a3 look sufficient for this.
  

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Re: Spanish repertoire
Reply #47 - 07/25/11 at 14:30:08
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Edit: My GM friend uses his repertoire file for coaching so I can't just steal from his file for our repertoire file.
  

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Re: Spanish repertoire
Reply #46 - 07/25/11 at 14:29:13
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Stefan Buecker wrote on 07/25/11 at 14:03:30:
Göran wrote on 07/25/11 at 13:56:41:
I have run Houdini in Aquarium/Idea this aftrernoon. She(?) proposes  4.0-0 Nd4 6.Bc4.

(5.Bc4) 5...Nxf3+ 6.Qxf3 Qf6 7.Qe3 c6, and now?


First prop from Houdini is 8.Nc3 b5 9.Be2.
I will run it over night.

Will also add TN's suggestion 4.0-0 Nd4 5.Nd4 ed4 6.Bc4
  

What kind of proof is that?
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Re: Spanish repertoire
Reply #45 - 07/25/11 at 14:27:53
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@MNb

I intend to compile some of the analysis, but not right now.

@Stefan Buecker

He didn't consider 3...a5. But after 4.0-0 Nd4 5.Nd4 ed4 6.Bc4 I would rather be White. 

@Markovich

I'd be happy to put some of the analyses in PGN files, but I can't right now.

@Jupp53 

How far do you think you will get in the next 24 hours? I don't want to double up on entering the same information from the same threads if possible.
  

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Re: Spanish repertoire
Reply #44 - 07/25/11 at 14:24:33
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Markovich wrote on 07/25/11 at 14:02:27:
Stefan Buecker wrote on 07/25/11 at 13:54:38:
MNb wrote on 07/25/11 at 13:42:19:
Stefan Buecker wrote on 07/25/11 at 13:29:36:
3...a5 would test the += hypothesis against a "zero-move" antithesis: is there any plus, if Black does almost nothing? Is 4.Bc4 the best reply?

Isn't the usual recipe continuing development and opening the centre? That would mean 4.0-0 followed by a quick d2-d4. But I'm sure you have looked at that too.

In the four games in the database with 4.0-0 Nd4, Black scored 62%. It is a kind of Bird's Variation, where a7-a5 is often useful.


What do you consider best against 3...a5?

There are several lines, none of them a clear refutation. Difficult to select a main line. Perhaps this one: 4.0-0 Nd4 5.Nxd4 exd4 6.c3 c6 (Bc5) 7.Bc4 (7.Be2 d5) 7...b5 8.Bd3 Bc5 9.Na3 d6 (Ne7) 10. Nc2 Qf6 (dxc3) 11.cxd4 Bxd4 12.Nxd4 Qxd4 13.Qc2 Ne7, with a choice between 14.a4 b4 15.b3 Be6 (Qxa1?!) and 14.Qc3 Qxc3 15.dxc3 Be6.
  
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Re: Spanish repertoire
Reply #43 - 07/25/11 at 14:09:14
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TN wrote on 07/25/11 at 10:52:36:
A grandmaster friend of mine has already done this project. I saw the more or less final project and it was a pretty good introduction for players up to 2000. 

To be honest, there is already a large amount of information on the Spanish in the threads in this section of the Forum. Just compiling the information from the threads into a series of PGN files would create an impressive Spanish repertoire file.

I just started doing this, but I'm a slow worker.
  

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Re: Spanish repertoire
Reply #42 - 07/25/11 at 14:03:30
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Göran wrote on 07/25/11 at 13:56:41:
I have run Houdini in Aquarium/Idea this aftrernoon. She(?) proposes  4.0-0 Nd4 6.Bc4.

(5.Bc4) 5...Nxf3+ 6.Qxf3 Qf6 7.Qe3 c6, and now?
  
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Re: Spanish repertoire
Reply #41 - 07/25/11 at 14:02:27
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Stefan Buecker wrote on 07/25/11 at 13:54:38:
MNb wrote on 07/25/11 at 13:42:19:
Stefan Buecker wrote on 07/25/11 at 13:29:36:
3...a5 would test the += hypothesis against a "zero-move" antithesis: is there any plus, if Black does almost nothing? Is 4.Bc4 the best reply?

Isn't the usual recipe continuing development and opening the centre? That would mean 4.0-0 followed by a quick d2-d4. But I'm sure you have looked at that too.

In the four games in the database with 4.0-0 Nd4, Black scored 62%. It is a kind of Bird's Variation, where a7-a5 is often useful.


What do you consider best against 3...a5?
  

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Re: Spanish repertoire
Reply #40 - 07/25/11 at 13:59:56
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TN wrote on 07/25/11 at 10:52:36:
A grandmaster friend of mine has already done this project. I saw the more or less final project and it was a pretty good introduction for players up to 2000. 

To be honest, there is already a large amount of information on the Spanish in the threads in this section of the Forum. Just compiling the information from the threads into a series of PGN files would create an impressive Spanish repertoire file.


Maybe you'd care to consolidate some of those threads yourself? And do you have your GM friend's notes?

  

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Re: Spanish repertoire
Reply #39 - 07/25/11 at 13:56:41
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I have run Houdini in Aquarium/Idea this aftrernoon. She(?) proposes  4.0-0 Nd4 6.Bc4.
  

What kind of proof is that?
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Re: Spanish repertoire
Reply #38 - 07/25/11 at 13:54:38
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MNb wrote on 07/25/11 at 13:42:19:
Stefan Buecker wrote on 07/25/11 at 13:29:36:
3...a5 would test the += hypothesis against a "zero-move" antithesis: is there any plus, if Black does almost nothing? Is 4.Bc4 the best reply?

Isn't the usual recipe continuing development and opening the centre? That would mean 4.0-0 followed by a quick d2-d4. But I'm sure you have looked at that too.

In the four games in the database with 4.0-0 Nd4, Black scored 62%. It is a kind of Bird's Variation, where a7-a5 is often useful.
  
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Re: Spanish repertoire
Reply #37 - 07/25/11 at 13:42:19
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Stefan Buecker wrote on 07/25/11 at 13:29:36:
3...a5 would test the += hypothesis against a "zero-move" antithesis: is there any plus, if Black does almost nothing? Is 4.Bc4 the best reply?

Isn't the usual recipe continuing development and opening the centre? That would mean 4.0-0 followed by a quick d2-d4. But I'm sure you have looked at that too.
  

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Re: Spanish repertoire
Reply #36 - 07/25/11 at 13:38:06
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Well, I already adressed 5.Bc4 c6 (6.Bxg8 and/or 6.0-0).
I also think shutting in Bf8 is a serious concession.
In line 2) a booklet by Jimmy Adams refers to a game Keres-Kimmelfeldt, URS 1957. The great Estonian played 8.exf5 (iso 8.Bg5) c6 9.g4 d5 10.Bb3 and I find it, compared to the King's Gambit, hard to believe that Black has sufficient compensation.  After 8.Bg5 c6 again 9.exf5 looks like an improvement.
But I won't have a problem if the choice falls on 5.exf5.

Thanks for the reply.
  

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Re: Spanish repertoire
Reply #35 - 07/25/11 at 13:29:36
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3...a5 would test the += hypothesis against a "zero-move" antithesis: is there any plus, if Black does almost nothing? Is 4.Bc4 the best reply?

TN wrote on 07/25/11 at 10:52:36:
A grandmaster friend of mine has already done this project.

Do you remember his analysis against 3...a5?
  
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Re: Spanish repertoire
Reply #34 - 07/25/11 at 13:23:10
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As I understand it the process of reaching the goal (activate the section) is as important as the goal itself. 

Concerning Sokolov and 5.Bc4
The move order 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 Nd4 is not accurate for Black. Now 5.Bc4 is not that dangerous for Black (5.exf5 better). He should be fine after precise play e.g. 5 Bc4 d6 (or 5...c6!?) 

1) 6.exf5 Bxf5 7.Nxd4 exd4 8.Qf3 Ne7 9.Nb5 d5 10.Be2 Qd7 11.Nxd4 0-0-0 and Black has play for the pawn.
2) 6.d3 Nxf3+ 7.Qf3 Nf6 8.Bg5 c6 9.0-0-0 where 9...h6  leads to an unclear game and 9...f4! is better for Black after 10.g3 h6 11.Bxf6 Qxf4+ 13.Qxf4 exf4 14.h4 Bg4 15.Rdg1 h5 16.d4 Be7.

Hope it's what fling refered to.
  

What kind of proof is that?
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Re: Spanish repertoire
Reply #33 - 07/25/11 at 13:21:59
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Go ahead! Save us work. Note that I already mentioned a line against the Jänisch with ...d5 and ...Qg5. I learned about this on this forum from Markovich.
  

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Re: Spanish repertoire
Reply #32 - 07/25/11 at 10:52:36
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A grandmaster friend of mine has already done this project. I saw the more or less final project and it was a pretty good introduction for players up to 2000. 

To be honest, there is already a large amount of information on the Spanish in the threads in this section of the Forum. Just compiling the information from the threads into a series of PGN files would create an impressive Spanish repertoire file.
  

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Re: Spanish repertoire
Reply #31 - 07/25/11 at 10:31:50
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8.d4 is illegal. So is 9.d4 after 8...Nf6 (iso 8...dxc3). So could you check too what Sokolov has to say about 8...Nf6 ?
  

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Re: Spanish repertoire
Reply #30 - 07/25/11 at 10:27:11
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MNb wrote on 07/25/11 at 09:41:52:
fling wrote on 07/25/11 at 08:45:04:
If we are going with the most critical, I'd suggest 5.exf5 anyway, since it is quite critical and Sokolov thinks that "5. Bc4 is not that dangerous".

It will never hurt to have two recommendations, but I still have two questions.
Does Sokolov give a reason why 5.Bc4 is not that dangerous?
Doesn't 5.exf5 Nf6 tend to transpose to that Parma game?

Answer of the second question: no, it tends to transpose to that Smailbegovic game I have addressed above. So 4...Nd4 5.exf5 makes a lot of sense indeed.

I suppose 3...f5 4.Nc3 Nd4 5.exf5 c6 6.Nxd4 exd4 7.Qh5 Ke7 8.0-0 Nf6 is met with 9.Re1+ Kd6 10.Ne4+ Nxe4 11.Rxe4 cxb5 12.d3.

fling wrote on 07/25/11 at 08:59:08:
maybe we should agree on an outline first?

If we debate an outline first there is a serious chance we never will get started. I repeat: let Markovich decide. I continued on 3...f5 because he did not object.


I guess you are right, better to get started!

See my above post. 8. d4! seems to give White better chances!

I'll check Sokolov's line after Bc4 when I have time.
  
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Re: Spanish repertoire
Reply #29 - 07/25/11 at 09:41:52
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fling wrote on 07/25/11 at 08:45:04:
If we are going with the most critical, I'd suggest 5.exf5 anyway, since it is quite critical and Sokolov thinks that "5. Bc4 is not that dangerous".

It will never hurt to have two recommendations, but I still have two questions.
Does Sokolov give a reason why 5.Bc4 is not that dangerous?
Doesn't 5.exf5 Nf6 tend to transpose to that Parma game?

Answer of the second question: no, it tends to transpose to that Smailbegovic game I have addressed above. So 4...Nd4 5.exf5 makes a lot of sense indeed.

I suppose 3...f5 4.Nc3 Nd4 5.exf5 c6 6.Nxd4 exd4 7.Qh5 Ke7 8.0-0 Nf6 is met with 9.Re1+ Kd6 10.Ne4+ Nxe4 11.Rxe4 cxb5 12.d3.

fling wrote on 07/25/11 at 08:59:08:
maybe we should agree on an outline first?

If we debate an outline first there is a serious chance we never will get started. I repeat: let Markovich decide. I continued on 3...f5 because he did not object.
  

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Re: Spanish repertoire
Reply #28 - 07/25/11 at 08:59:08
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Schaakhamster wrote on 07/25/11 at 08:38:17:
I very much like the idea of this thread. Are we going to work one line at a time or more chaotic? 

An idea would be to select one line as the main line (my suggestion would be the Chigorin, more for historical reasons I admit). And threat the rest as branches working through them to get to the mainline. 



I agree on the ideas, and I think we should keep it to one line at a time for clarity reasons. Based on a post (Mnb's I think) I just continued on a suggested line, but maybe we should agree on an outline first?
  
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Re: Spanish repertoire
Reply #27 - 07/25/11 at 08:52:27
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Sorry, I can't get my post correct. I wanted to add a PGN-file, but it doesn't work after the 7th move. What did I do wrong?

EDIT: Fixed, I wrote zero-zero (0-0), not O-O.
  
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Re: Spanish repertoire
Reply #26 - 07/25/11 at 08:47:38
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fling wrote on 07/25/11 at 08:38:21:
MNb wrote on 07/25/11 at 03:30:00:
We already know that 3...f5 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 d5 7.Nxc6 Qg5 8.Qe2 Nf6 9.Nxa7+ Bd7 10.Bxd7+ Nxd7 11.f4 Qc5 12.Nb5 Qxc2 13.d4! is very pleasant for White.

But how should 7...Qd5 be dealt with? The main line is 8.c4 Qd6 9.Nxa7+ Bd7 10.Bxd7+ Qxd7 11.Qh5+ g6 12.Qe5+ Kf7 13.Nb5 c6 14.Qd4 but how big is White's advantage after Nf6 15.Qxd7+ Nxd7 16.Nc3 Nc5 17.0-0 Bg7 ?
Is there something better? I have looked at a few deviations and some are interesting (there is a game Timman-Piket) but none seem to give a clear advantage.


Sorry, but Black can't play ...d5, what is it supposed to be?


1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 d5 6. Nxe5 dxe4 7. Nxc6 . You could say the first main theoretical parting of the road in the mainline.   
  
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Re: Spanish repertoire
Reply #25 - 07/25/11 at 08:45:04
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MNb wrote on 07/25/11 at 01:53:16:
fling wrote on 07/24/11 at 18:46:22:
Therefore, let's start with 4 ...Nd4, or? I have never analyzed that move, but both 5. Ba4 and 5. exf5 looks interesting.

It's OK with me, especially as this shows the dangers White has to beware of. Before you know White defends against a KG with colours reversed. A classical example is

Marjanovic,S - Parma,B [C63]
Yugoslavia, 1979

1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 Nd4 5.Ba4 Nf6 6.Nxe5 Bc5 7.0-0 0-0 8.exf5 d5 9.Ne2 Qd6 10.Nxd4 Bxd4 11.Nf3 Ng4 12.g3 Bxf2+ 13.Rxf2 Nxf2 14.Kxf2 Bxf5 15.d4 Be4 16.Bf4 Rxf4 17.gxf4 Qxf4 18.Qe2 Rf8 19.Rf1 Qxh2+ 20.Ke1 Qg3+ 21.Kd2 Rxf3 22.Rxf3 Qxf3 23.Qb5 h5 24.Qxb7 h4 25.Qxc7 Qf2+ 0-1

5.Bc4 is to be preferred.  It scores excellently. 5...d6 basically is a lame version of the King's Gambit Declined with colours reversed. 5...Nf6 6.0-0 and 6.d3 is no problem either. So 5.Bc4 c6 remains. GM Sax played 6.Bxg8 in Las Palmas 1978 while 6.0-0 should be good too. For our purpose we can stop here, I think.

4...Nf6 must be studied in relation with 4...Nd4. Black's idea is to reach that Parma game (or something similar) by transposition: 5.exf5 Bc5 6.o-o o-o 7.Nxe5 Nd4 8.Ba4. White should deviate somewhere, but I find it hard to decide where exactly. Options are 8.Nf3, 8.Bd3, 7.Bxc6 and 6.Qe2. Anyone?

Edit: Well, me myself. I glanced through my notes, checked the game Smailbegovic-Maric, Sombor 1957. 8.Nf3 Nxb5 9.Nxb5 d5 (I always have thought that the pair of Bishops should offer some compensation) 10.Nbd4 Ng4 11.h3 Ne5 12.Nxe5 Bxd4 13.Nf3 Bb6 and according to Rybka White can afford 14.g4 (iso White's 14.d4) Qf6 15.d4 as Bxf5 16.gxf5 Qxf5 17.Ne5 idea 18.Qg4 holds no danger at all.


If we are going with the most critical, I'd suggest 5.exf5 anyway, since it is quite critical and Sokolov thinks that "5. Bc4 is not that dangerous". The piece sac after  5 ...c6  6.Nxd4 exd4 7.Qh5 Ke7 8.0-0 is pretty grim for Black. I noticed a game in this line in MegaDatabase with pretty messy play, but Sokolov's variation 8...dxc3 9 d4!! seems like good for White and lots of fun!

« Last Edit: 07/25/11 at 15:22:04 by fling »  
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Re: Spanish repertoire
Reply #24 - 07/25/11 at 08:38:21
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MNb wrote on 07/25/11 at 03:30:00:
We already know that 3...f5 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 d5 7.Nxc6 Qg5 8.Qe2 Nf6 9.Nxa7+ Bd7 10.Bxd7+ Nxd7 11.f4 Qc5 12.Nb5 Qxc2 13.d4! is very pleasant for White.

But how should 7...Qd5 be dealt with? The main line is 8.c4 Qd6 9.Nxa7+ Bd7 10.Bxd7+ Qxd7 11.Qh5+ g6 12.Qe5+ Kf7 13.Nb5 c6 14.Qd4 but how big is White's advantage after Nf6 15.Qxd7+ Nxd7 16.Nc3 Nc5 17.0-0 Bg7 ?
Is there something better? I have looked at a few deviations and some are interesting (there is a game Timman-Piket) but none seem to give a clear advantage.


Sorry, but Black can't play ...d5, what is it supposed to be?
  
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Re: Spanish repertoire
Reply #23 - 07/25/11 at 08:38:17
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I very much like the idea of this thread. Are we going to work one line at a time or more chaotic? 

An idea would be to select one line as the main line (my suggestion would be the Chigorin, more for historical reasons I admit). And threat the rest as branches working through them to get to the mainline. 

  
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Re: Spanish repertoire
Reply #22 - 07/25/11 at 08:34:30
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MNb wrote on 07/25/11 at 03:30:00:
We already know that 3...f5 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 d5 7.Nxc6 Qg5 8.Qe2 Nf6 9.Nxa7+ Bd7 10.Bxd7+ Nxd7 11.f4 Qc5 12.Nb5 Qxc2 13.d4! is very pleasant for White.

But how should 7...Qd5 be dealt with? The main line is 8.c4 Qd6 9.Nxa7+ Bd7 10.Bxd7+ Qxd7 11.Qh5+ g6 12.Qe5+ Kf7 13.Nb5 c6 14.Qd4 but how big is White's advantage after Nf6 15.Qxd7+ Nxd7 16.Nc3 Nc5 17.0-0 Bg7 ?
Is there something better? I have looked at a few deviations and some are interesting (there is a game Timman-Piket) but none seem to give a clear advantage.


I believe Sokolov (Ruy Lopez revisited) thought that Qg5 was payable but Qd5 not. I'll look it up when I get home.
  
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Re: Spanish repertoire
Reply #21 - 07/25/11 at 03:30:00
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We already know that 3...f5 4.Nc3 fxe4 5.Nxe4 d5 6.Nxe5 dxe4 7.Nxc6 Qg5 8.Qe2 Nf6 9.Nxa7+ Bd7 10.Bxd7+ Nxd7 11.f4 Qc5 12.Nb5 Qxc2 13.d4! is very pleasant for White.

But how should 7...Qd5 be dealt with? The main line is 8.c4 Qd6 9.Nxa7+ Bd7 10.Bxd7+ Qxd7 11.Qh5+ g6 12.Qe5+ Kf7 13.Nb5 c6 14.Qd4 but how big is White's advantage after Nf6 15.Qxd7+ Nxd7 16.Nc3 Nc5 17.0-0 Bg7 ?
Is there something better? I have looked at a few deviations and some are interesting (there is a game Timman-Piket) but none seem to give a clear advantage.

Edit: I corrected the typo.

fling wrote on 07/25/11 at 08:38:21:
Sorry, but Black can't play ...d5, what is it supposed to be?
« Last Edit: 07/25/11 at 09:37:16 by MNb »  

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Re: Spanish repertoire
Reply #20 - 07/25/11 at 01:53:16
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fling wrote on 07/24/11 at 18:46:22:
Therefore, let's start with 4 ...Nd4, or? I have never analyzed that move, but both 5. Ba4 and 5. exf5 looks interesting.

It's OK with me, especially as this shows the dangers White has to beware of. Before you know White defends against a KG with colours reversed. A classical example is

Marjanovic,S - Parma,B [C63]
Yugoslavia, 1979

1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 4.Nc3 Nd4 5.Ba4 Nf6 6.Nxe5 Bc5 7.0-0 0-0 8.exf5 d5 9.Ne2 Qd6 10.Nxd4 Bxd4 11.Nf3 Ng4 12.g3 Bxf2+ 13.Rxf2 Nxf2 14.Kxf2 Bxf5 15.d4 Be4 16.Bf4 Rxf4 17.gxf4 Qxf4 18.Qe2 Rf8 19.Rf1 Qxh2+ 20.Ke1 Qg3+ 21.Kd2 Rxf3 22.Rxf3 Qxf3 23.Qb5 h5 24.Qxb7 h4 25.Qxc7 Qf2+ 0-1



5.Bc4 is to be preferred.  It scores excellently. 5...d6 basically is a lame version of the King's Gambit Declined with colours reversed. 5...Nf6 6.0-0 and 6.d3 is no problem either. So 5.Bc4 c6 remains. GM Sax played 6.Bxg8 in Las Palmas 1978 while 6.0-0 should be good too. For our purpose we can stop here, I think.

4...Nf6 must be studied in relation with 4...Nd4. Black's idea is to reach that Parma game (or something similar) by transposition: 5.exf5 Bc5 6.o-o o-o 7.Nxe5 Nd4 8.Ba4. White should deviate somewhere, but I find it hard to decide where exactly. Options are 8.Nf3, 8.Bd3, 7.Bxc6 and 6.Qe2. Anyone?

Edit: Well, me myself. I glanced through my notes, checked the game Smailbegovic-Maric, Sombor 1957. 8.Nf3 Nxb5 9.Nxb5 d5 (I always have thought that the pair of Bishops should offer some compensation) 10.Nbd4 Ng4 11.h3 Ne5 12.Nxe5 Bxd4 13.Nf3 Bb6 and according to Rybka White can afford 14.g4 (iso White's 14.d4) Qf6 15.d4 as Bxf5 16.gxf5 Qxf5 17.Ne5 idea 18.Qg4 holds no danger at all.
  

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Re: Spanish repertoire
Reply #19 - 07/24/11 at 20:32:44
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Stefan Buecker wrote on 07/24/11 at 17:42:29:
To study mainly the popular moves would, in my opinion, contradict Markovich's idea to "prove +=" for White. But I'll watch what happens. There ARE moves which are fine, only unusual and therefore unpopular. I believe that 3...Bc5 = is objectively best. I am not fond of Na5, g5, Bb4, f6, but 3...a5 deserves a look. - As arbiter we have engines, if we regard lines above, say, +0.35 (in R4) as "solved", fine with me.


I don't say we should try to prove +=.  I say that our starting assumption should be that with best play, that's what White gets. If we find ourselves with less at some point, this will indicate we should either look deeper or change approaches.

So I believe that with this, which is Principle #4, and Principle #1, we already have a complete set of criteria for selecting White's moves. As for Black's, we are compelled to consider any that do not obviously result in += or better for White.
  

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Re: Spanish repertoire
Reply #18 - 07/24/11 at 20:16:20
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Slightly worse than 3...Rb8.
  
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Re: Spanish repertoire
Reply #17 - 07/24/11 at 19:53:25
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What do you think abaout 3...Bb5

Discussed in Bernhard Lach: Spanisch - Die Alapin-Variante 1.e4 e5 2.Sf3 Sc6 3.Lb5 Lb4! from 1995

  

What kind of proof is that?
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Re: Spanish repertoire
Reply #16 - 07/24/11 at 19:13:02
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I just realized there is a thread on the Jaenisch already started, which I haven't read. I guess starting more analysis here could mean double posts kinda.

Anyway, I just checked Sokolov's book and he states that he thinks 4 ...Nd4 is a mistake and gives it a ?
  
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Re: Spanish repertoire
Reply #15 - 07/24/11 at 18:46:22
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MNb wrote on 07/24/11 at 16:52:54:
Markovich wrote on 07/24/11 at 13:32:57:
1. We should always recommend White's most challenging and principled tries; no dodging around theory unless we  sincerely think our way is better.

3...f5 4.Nc3, I have no doubt about it. If White indeed plays optimally he/she has fine winning chances and Black none. But if the consensus is that 4.d3 is to be investigated first I'll accept. After all Radjabov is unbeaten after 4.Nc3 fxe4 5.Nxe4 Nf6. This anyhow means we should not pay too much attention to 5...d5; 4...Nd4 and 4...Nf6, even if the latter is my preference for Black.
Also it's OK with me if other 3rd moves come first. I just think we should not debate too long about the procedure, so this post is meant as a kick-off. As Markovich started this thread he should decide. I have faith enough in his persistance that all Black's Defences will get a chance. I also have faith enough in his common sense that he will postpone the really hard subjects (like the Marshall) until the off-beat stuff and sidelines are done.
So frankly I don't care too much on which criteria his choices will be based.

So yes, I am highly interested. It will be very helpful in case I decide to return to 1.e4 some day. I will also give IM Van Delft's choices as published in Dutch magazine Schaaknieuws a few years ago.
From this point of view we shoul begin with 3...a5 as Van Delft doesn't mention it.


I agree, analysis can be fun and I am planning on taking up 1 e4 as well.

So the main continuations are, after 4. Nc3:
4 ...fxe4 and
4 ...Nf6

Therefore, let's start with 4 ...Nd4, or? I have never analyzed that move, but both 5. Ba4 and 5. exf5 looks interesting.
  
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Re: Spanish repertoire
Reply #14 - 07/24/11 at 17:42:29
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To study mainly the popular moves would, in my opinion, contradict Markovich's idea to "prove +=" for White. But I'll watch what happens. There ARE moves which are fine, only unusual and therefore unpopular. I believe that 3...Bc5 = is objectively best. I am not fond of Na5, g5, Bb4, f6, but 3...a5 deserves a look. - As arbiter we have engines, if we regard lines above, say, +0.35 (in R4) as "solved", fine with me.
  
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Re: Spanish repertoire
Reply #13 - 07/24/11 at 17:38:48
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Markovich wrote on 07/24/11 at 13:32:57:

4. Finally I think our starting point is 3.Bb5 +=; anytime that seems to fail, we should look a little deeper.


That way the Marshall probably has to be avoided. Providing += here has been impossible for the best players in the world for some time now.
  
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Re: Spanish repertoire
Reply #12 - 07/24/11 at 16:52:54
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Markovich wrote on 07/24/11 at 13:32:57:
1. We should always recommend White's most challenging and principled tries; no dodging around theory unless we  sincerely think our way is better.

3...f5 4.Nc3, I have no doubt about it. If White indeed plays optimally he/she has fine winning chances and Black none. But if the consensus is that 4.d3 is to be investigated first I'll accept. After all Radjabov is unbeaten after 4.Nc3 fxe4 5.Nxe4 Nf6. This anyhow means we should not pay too much attention to 5...d5; 4...Nd4 and 4...Nf6, even if the latter is my preference for Black.
Also it's OK with me if other 3rd moves come first. I just think we should not debate too long about the procedure, so this post is meant as a kick-off. As Markovich started this thread he should decide. I have faith enough in his persistance that all Black's Defences will get a chance. I also have faith enough in his common sense that he will postpone the really hard subjects (like the Marshall) until the off-beat stuff and sidelines are done.
So frankly I don't care too much on which criteria his choices will be based.

So yes, I am highly interested. It will be very helpful in case I decide to return to 1.e4 some day. I will also give IM Van Delft's choices as published in Dutch magazine Schaaknieuws a few years ago.
From this point of view we shoul begin with 3...a5 as Van Delft doesn't mention it.
  

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Re: Spanish repertoire
Reply #11 - 07/24/11 at 16:36:55
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Stefan Buecker wrote on 07/24/11 at 14:25:21:
The number of games is a silly measure for the value of a move. In most cases, the popular move is an error. Take the % score, or the difference between av. rating (Black) and his success rating. 

Are we talking about the value of a move or the distinction between "main line" and "offbeat"? The ratio of number of games is a good indicator of the likelihood of meeting that move otb (at least, if that number is reasonably distributed over time). Of course, the Steinitz defense 1.e4 e5 2.Nf3 Nc6 3.Bb5 d6 has very few outings above a level of 2600, and White scores heavily (66.7 % over all games), so it probably isn't a very good move. But still, it shows up in almost 5 % of all Spanish games (ok, I haven't calculated the figures for the last 10 years or so, where it might be only 2 % - or 10 %?). So for the average chess player who plays the Spanish with white, it seems to make sense to prepare for that move. And as far as I understand the background of this thread, this is the point that counts.

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Re: Spanish repertoire
Reply #10 - 07/24/11 at 15:16:39
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Some simple statistics from my OM database

All OM games (including Corr.)
3...a6           271013    56,5%      2011
3...Nf6              32486     59,4           2011
3...f5             20075     52,5           2011
3...Bc5          14549     58,8            2011
3...d6            12147     67,9           2010
3...Nd4           6010      61,4           2010

ELO > 2500 both players (including corr)
3...a6               12896    56,7%       2011
3...Nf6               2464    54,4          2011
3...f5                   257    57,4          2011
3...g6                  205    60,0          2010
3...Bc5                    178    55,3          2010
  

What kind of proof is that?
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Re: Spanish repertoire
Reply #9 - 07/24/11 at 15:01:24
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I agree with Zwischenzugzwang that this could be a useful way to look at it. Just without consulting any database, I would say that 1.e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5.0-0 has been THE main continuation for a long time. After this, there is a branching point for Black, i.e. the question is if he/she wants to choose the Open or Closed variation.

I guess this would mean that we can start already with Black's alternatives at move 3.

Btw, I just consulted my Database. I won't call 3 ...f5 offbeat, judging by the shear number of games played in this line, and also based on Radjabov's recent success.
  
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Re: Spanish repertoire
Reply #8 - 07/24/11 at 14:25:21
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The number of games is a silly measure for the value of a move. In most cases, the popular move is an error. Take the % score, or the difference between av. rating (Black) and his success rating.
  
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Re: Spanish repertoire
Reply #7 - 07/24/11 at 13:52:33
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That way of looking at it could be useful. But what, the vaunted 3...a5 isn't a main line??
  

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Re: Spanish repertoire
Reply #6 - 07/24/11 at 13:48:16
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One reasonable criterion seems to be the ratio of number of games with alternative move N and alternative move N+1, where alternative move N+1 is the alternative move played more rarely than alternative move N, but more often than any other alternative move which is played less often than alternative move N. Following this criterion and my database, there seem to be three reasonable "cut-off-points" between "mainline" and "offbeat":

(i) 3...Nf6 (22,521 games), compared to 3...a6 (140,731 games), ratio appr. 1 : 6.5,
(ii) 3...Bb4 (363 games), compared to 3...g6 (2,936 games), ratio appr. 1 : 8, and
(iii) 3...Qg5 or 3...Nh6 (1 game each), compared to 3...Nb8 (7 games), ratio = 1 : 7.

So a reasonable cut-off-point both from a statistical point of view and a common-sense point of view seems to be number (ii): 3...g6 is the rarest "mainline" move, 3...Bb4 the most common "offbeat" move. And yes, 3...a5, 3...f6, and 3...d5 would be offbeat too.

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Re: Spanish repertoire
Reply #5 - 07/24/11 at 13:35:23
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fling wrote on 07/24/11 at 13:24:37:
Stefan Buecker wrote on 07/24/11 at 13:01:03:
fling wrote on 07/24/11 at 12:14:51:
What do you suggest the start should be, "offbeat" tries like ...g6, ...f5 or the "mainlines"?

The box with the offbeat systems is the one with 3...a5, no?


Sure Smiley I guess it offbeat will vary from person to person. Hence my "offbeat" in my first post!

I'd estimate if the forum would critically study 3...a5, the maximum "provable" for White would be +0.30 in R4.
  
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Re: Spanish repertoire
Reply #4 - 07/24/11 at 13:32:57
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fling wrote on 07/24/11 at 12:14:51:
This sounds very interesting to me. I thought the idea was also that some members were going to assemble repertoires that could be maintained, but I can't recall seeing any of this yet.

What do you suggest the start should be, "offbeat" tries like ...g6, ...f5 or the "mainlines"?


I suppose we could first deal with offbeat tries. But we would need a secretary or something to consolidate our best efforts.

I would propose a few principles. 

1. We should always recommend White's most challenging and principled tries; no dodging around theory unless we  sincerely think our way is better.  

2. We should go broad before we go deep (e.g. we should have a complete, provisional outline out to move, umm, 12 before we go significantly deeper anywhere). 

3. We should never go any deeper than necessary to establish a consensus among ourselves. I have little patience with people who want to analyze out to move 57 just to prove that their pet variation actually works, and if we permitted that, we'd never finish. 

4. Finally I think our starting point is 3.Bb5 +=; anytime that seems to fail, we should look a little deeper.
  

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Re: Spanish repertoire
Reply #3 - 07/24/11 at 13:24:37
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Stefan Buecker wrote on 07/24/11 at 13:01:03:
fling wrote on 07/24/11 at 12:14:51:
What do you suggest the start should be, "offbeat" tries like ...g6, ...f5 or the "mainlines"?

The box with the offbeat systems is the one with 3...a5, no?


Sure Smiley I guess it offbeat will vary from person to person. Hence my "offbeat" in my first post!
  
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Re: Spanish repertoire
Reply #2 - 07/24/11 at 13:01:03
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fling wrote on 07/24/11 at 12:14:51:
What do you suggest the start should be, "offbeat" tries like ...g6, ...f5 or the "mainlines"?

The box with the offbeat systems is the one with 3...a5, no?
  
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Re: Spanish repertoire
Reply #1 - 07/24/11 at 12:14:51
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This sounds very interesting to me. I thought the idea was also that some members were going to assemble repertoires that could be maintained, but I can't recall seeing any of this yet.

What do you suggest the start should be, "offbeat" tries like ...g6, ...f5 or the "mainlines"?
  
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Spanish repertoire
07/24/11 at 12:04:31
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An interesting group project here would be to work out a Spanish repertoire, not necessarily very deep, but deep enough to indicate a strong method of play against all Black's important tries. I am perpetually puzzled by the seeming lack of enthusiasm in this forum for White's side of this powerful system, particularly since the chess world  long ago reached an unambiguous consensus that 3.Bb5 is the best move.
  

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