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Very Hot Topic (More than 25 Replies) Spanish repertoire (Read 216413 times)
Confused_by_Theory
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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 | 266 Downloads )
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Confused_by_Theory
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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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Confused_by_Theory
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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 | 197 Downloads )
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Confused_by_Theory
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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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TN
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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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Confused_by_Theory
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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 | 169 Downloads )
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NegiRefutes
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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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Confused_by_Theory
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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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Confused_by_Theory
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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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NegiRefutes
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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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Confused_by_Theory
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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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