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Very Hot Topic (More than 25 Replies) Leningrad with 7... Nc6 8.d5 Na5 (Read 20665 times)
Joris Pelemans
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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #30 - 03/31/05 at 07:30:45
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Thanks Dragonslayer!

One remark maybe: I think you forgot a move in the 12...Nh5 variation: 13.fxe5 Bxe5 and now first 14.Ne2 Qd6 because otherwise white does not have the annoying check on c3 you were talking about.

Good stuff!

Joris
  
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Bentissimo
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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #29 - 03/29/05 at 09:41:45
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Hi Dragonslayer,

thanks again for giving some variations on the controversal Dutch Leningrad. I hope NIC will at least publish your analysis in the forum section and I look forward to any new information from you concerning the "ugly duckling"!

Best wishes,
Bentissimo
  
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Dragonslayer
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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #28 - 03/29/05 at 09:23:23
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Joris,

I think the reasons for 10.Qb3 Kh8 11.e4! being stronger was mentioned in another thread, but let me repeat two problems for Black:
If Black plays 11...f4 then 12.gxf4 exf4 13.Bxf4 Nxe4 14.Bxc7 is good for White. In the main line Black would reply to 13.Bxc7? with 13...Nxc3 hitting the queen on d1. With the queen on b3 this is no longer possible.
In the ...Nh5 variation, 12...Nh5 13.fxe5 Bxe5 14.f4 Nxf4 15.Bxf4 Rxf4 16.Rxf4 White now compared to the 10.e4 f4 line has an important check on c3. In the main line this is not check since the King is still at g8.
As for 10.Qb3 e4 I have sent my analysis and game references to the NIC editors for inclusion in the Forum section, possibly in YB 74. I am not writing any more articles for that publication (except one on the King's gambit that they already have) since they refuse to renumerate me in a decent way.
I do not want to take the bread from people that do this for a living so unless the NIC people change their minds I will concentrate on my day job  Smiley
  
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Joris Pelemans
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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #27 - 03/22/05 at 18:12:51
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Dragonslayer,

last Sunday I had the Dutch opening on the board for the first time in an official game and without knowing anything of the theory I opted (after 7...Nc6) for 8.d5 Ne5 9.Nxe5 dxe5 10.Qb3, but of course without the idea to play 11.e4 after eg 10...Kh8 (which in fact my opponent played). I've looked up a lot of the theory and ideas of this variation by now, but I am still wondering why 11.e4 after 10...Kh8 is so much stronger than immediately 10.e4. It seems to me that black can still play 11...f4 without too much trouble. Is it just the fact that Qb3 contributes more to white's position than Kh8 does to black's or is there some sort of refutation?

Thanks in advance,

Joris
  
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Bentissimo
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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #26 - 11/08/04 at 05:43:36
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Dragonslayer,

thanks a lot for your reply. In my opinion a "Ugly Duckling Part III" is indeed neccessary, otherwise this series would not be complete. Or would anyone like to see the probably main line of an double edged opening variation left out?

I hope the responsible persons will agree and you will get the chance to write and publish it.

Anyway I hope to hear or read more about the "Ugly Duckling" in the future! 

Best wishes!
  
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Dragonslayer
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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #25 - 11/01/04 at 10:47:34
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Bentissimo, I think the idea behind 10...h6 is to play 11...g5. Since White has demonstrated his intention not to force the 10.e4 f4 sequence, Black cannot play ...g5. 10...h6 is preparation for this move to be followed by f5-f4, g5-g4 etc. but unfortunately 11.e4 f4 12.gxf4! throws a spanner in Black's face.

I am currently working on a reply to the editorial team of the NIC Yearbooks. The analysis is too long to be included in a letter so either I will convince them to print a part III of the Duckling or I will truncate the analysis to be included in an ordinary letter, which of course has the danger that people will question the missing detail.
A third option is to skip it totally and write a book on the ...Nc6 Leningrad instead (after I finish a KG project first). Any publishers on Chesspublishing.com ??  Wink
Since this variation is critical and I have met opponents that had read the Duckling articles, I am hesitant to give away all my analysis here (especially since there are a number of leeches lurking about, who never contribute anything worthwhile or a single new move but prefer to pontificate their "unique" understanding of the game - especially on gambits)
However I will reveal this much:
10.Qb3 e4 is the only convincing try. 10...e6 might be playable but needs more work.
After 10...e4 11.f3 exf3 Black equalizes with ...e5 at the correct moment (e.g. 12.exf3 e5!= equalizes immediately). White has one line that gives Black some trouble (but nothing too worrisome, Black should still draw) but I will leave it to the leeches to find it...
Another try is 11.c5 Kh8 12.Rd1 then Black needs to be careful not to transpose into a bad line (after 10.Qb3 Kh8 11.Rd1 and Black later plays ...e4, as in e.g. Gurevich-Miton; Cappelle la grande 1999, which was given by Sosonko in YB 71)
Some games continue 12...a6 which looks like tempo-loss, so does 12...h6. A better try is 12...b6 challenging White on the queenside.
  
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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #24 - 10/28/04 at 10:16:26
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Hi all!

I play the Leningrad 7...Qe8 frequently and get about my 50 %. After the two articles "The ugly duckling" in NIC Yearbooks I decided to have a look at this quite different approach. 

If White is careless he might get mated very quickly in the 10.e4 f4 variations. Unfortunately nobody wanted to play the Leningrad as White so I had no chance to test ist. 

Then came the Forum article mentioned above. 10.Qb3 looks good for White as was confirmed by Sosonko. 

That day I wondered why 10...h6 should be necessary? e4 is still a threat, so the black 10...e4 looked obvious.

Some days ago I faced an opponent in a local team blitz who played the Leningrad against me! Though I already had forgotten the variations I was pleased to get a chance to see what goes on in practical play.

I moved 10.Qb3 quickly and he replied instantly 10...e4! So maybe he knew the articles or just is a good player?! After 11.f3 it was a hard fight which ended in a draw eventually.

So my conclusion is that 10...e4 might well be the main line in the future and I would be happy if DragonSlayer could find time and interest in a new article!

Best wishes to all!
  
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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #23 - 10/14/04 at 04:11:37
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I have recently changed from 8...Ne5 to 8...Na5. I think the Ne5 line is dubious after Nxe5 dse5 Qb3. I don't like Blacks position here, I had a painful experience where my opponent improved over one of my previous games on move 24!!! and I was left stuggling.
After 8...Na5 I must say that I think Black is doing fine, I have only played it once and I achieved a comfortable draw against GM Joe Gallagher. Dragonslayer, what is your/Kramnik's recommendation against Na5?
  
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TalJechin
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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #22 - 09/18/04 at 03:29:17
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Just noticed an odd thing, in the latest(?) ECO-A from 2001, MNb's game reference Bykov,V - Tolush,A CCCPch sf Leningrad (7), 1957 has been replaced by Flear-Pein, Great Britain 1989.

So instead of 10.Bd2 a6 11.Rac1 we now have:

11.Rad1 Rb8 12.b3 Bd7 13.e4 fxe4 14.Nxe4 b5 15.Nxf6 exf6 16.Qc3 Nb7 17.Rfe1 += Flear-Pein, Great Britain 1989.

Does anyone know why they have switched from Rac1 to Rad1 here?
  
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Dragonslayer
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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #21 - 09/17/04 at 18:48:49
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Quote:


I've never looked into these, after having seen his articles on the King's Gambit, I assumed that whatever conclusions he might arrive at among the numerous quotations, would not be worth the price of those books even if they were on sale...   8)

It's rather entertaining that Pedersen, Beim and Kindermann all agree that 7...Nc6 8.d5! is +/- without offering any proof whatsoever! 
 Cheesy


Yes it is rather interesting...but not so interesting as your apparently 'innocent' comments.
I did not really want to respond this kind of comment but since there was a real question by feb I will reply to it (at the end, since I first have to deal with Wonderer's observations.)
Perhaps a few things can be appreciated:
1) I did not have any influence on the editorial part of the articles in CCN, e.g. publishing the whole Bishop's gambit in one big article, and I am well aware of the shortcomings of these articles, which were prepared under considerable time pressure. Quite unlike the article in CCN 45, which is considerably deifferent form the others.
2) The articles were primarily intended to be viewed in ChessBase and for a correspondence player audience, that I expect have their own databases. So the game quotations were simply intended to structure the games.
The .pdf version was offered for free to anyone that cared to download it. If you don't like it, then don't download it, don't read it, don't pass it on, don't save it to your hardisk, but don't put it down just because you did not want to pay the token amount to get the .cbv. file. I have had this kind of criticism before on this site and however you intended it to come out, it still feels like a kick in the face. 
3) I seem to remember an article, titled "Resurrecting the Kieseritzky" by M.Jensen (also for free on Thomas Stock's website) that did not contain so many game quotations and was not so easily refuted.
4) So maybe I am a bit touchy but the NIC Yearbook articles are obviously part of a professional product. This goes for:
presentation and editorial effort.
preparation of the final article before it goes to the editor.
Also, the NIC articles are in an entirely different format than the CCN articles. But since you have not read them how could you know? I don't care if you buy the NIC Yearbooks, but perhaps you might want to check the following links:

http://seagaard.dk/review/eng/bo_periodical/nic_yearbook_66.asp?KATID=BO&Product...

http://seagaard.dk/review/eng/bo_periodical/nic_yearbook_68.asp?KATID=BO&Product...

http://www.chesscafe.com/text/hansen52.pdf (page 17)

I don't understand posting like yours, why is it so hard to make your point without insulting people. You must know that I was going to read this post which makes your comments premeditated and leaves me wondering what the point is. Criticism based on lack of knowledge or ignorance is especially hard to accept, but since you have apparently looked at the CCN articles I suggest that maybe you also look at the end of the Bishop's gambit article, where you will find (seperated from the fog of game and analysis quotations) the theoretical overview/conclusions with references to relevant games.
(Perhaps if Henrik El-Kher had read this he would not have been so foolish to play 7.Qf3 in the main line against Beliavsky at the Copenhagen Open, and perhaps you can take some comfort that CCN has been discontinued so you will not be bothered with it in the future.)

Now for the real subject - the Leningrad Dutch articles in NIC 68 and 70 contain the conclusion that the line 7...Nc6 8.d5 Ne5 9.Ne5 de5 10.e4 f4 11.b4 g5 is playable for Black. (That's why they are called the Ugly Duckling) The main lines are 12.Bb2 g4 and 12.Re1 a6 (or 12...Qe8)
11.gf4 ef4 12.e5 Ng4 13.e6 Ne5 was dealt with by A.C. van der Tak in a previous Yearbook.
Now there is only a problem with 10.Qb3! with the idea 10...Kh8 11.e4! or 10...h6 11.e4. So Black has to play 10...e6 or 10...e4. Perhaps, when I get time I will write the NIC people a letter on the critical line 10.Qb3 e4 11.f3.
Btw. the move-order Dragonplayer originally gave: 1.d4 f5 2.g3 g6 is a bit dodgy due to 3.h4. Better is 2...Nf6 and then 3...g6.
  
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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #20 - 09/17/04 at 14:45:00
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There is an extensive discussion of this line, I want to say by Mark Zaitsev, but I am not quite sure, in an older New in Chess yearbook.   More recently in Yearbooks 69 and 70, only 8...Ne5 is considered.
  

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DragonPlayer
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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #19 - 09/16/04 at 15:51:15
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Hi again.

Just wanted to mention that I recently played in a tournament where I met the Leningrad Nc6 variation twice against mediocre opponents (Elo around 2150)! Once with d5 Na5 and the other with Ne5. Both times I played the recommended lines in Khalifmans book, the opponents went astray and They didn't stand a chance Smiley

In the Na5 variation I just won both the c-pawns without giving him a chance, in the Ne5 variation I played the recommended Qb3, and after h6 Nd4 a6 f4 Nf7 e3 Qe8 Bd2 Nd8 I soon forced through e4 and mated him shortly =)

I looked at these variations a long time ago but now I finally got to try them and now I feel secure in the Leningrad Dutch!!
  
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Wonderer
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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #18 - 05/03/04 at 08:11:42
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OK,

theoretically 9...e5! is considered equal by both Luccioni and Khalifman.

after 9...c5 black should probably play b7-b5 as a pawn sac. The trouble is that it may become hard to generate winning chances for black...



Petrosian,A (2500) - Beim,V (2480) [A89]
Groningen op Groningen (6), 1990

1.d4 d6 2.Nf3 g6 3.c4 f5 4.Nc3 Nf6 5.g3 Bg7 6.Bg2 0-0 7.0-0 Nc6 8.d5 Na5 9.Qd3 c5 10.Bd2 

[ 10.b3 a6 11.Bb2 Rb8 12.Rab1 b5 13.Ba1 bxc4 14.bxc4 Bd7 15.Rxb8 Qxb8 16.Rb1 Qc7 17.h3 Rb8 18.Nd2 Rxb1+ ½-½ Beck,H-Beim,V/TCh-AUT 2002 (18)] 

10...a6 11.Rac1 Rb8 12.b3 b5 13.cxb5 axb5 14.Nxb5 Ba6 15.a4 Ne4 16.Rb1 Qb6 17.b4 cxb4 18.Rxb4 Rfc8 19.Be3 Qb7 20.Bd4 Bh6 21.Ba1 Qb6 22.Nfd4 Nc5 23.Qb1 Bg7 24.Nxf5 gxf5 25.Qxf5 Rf8 26.Qg5 Rf6 27.Bxf6 exf6 28.Qf4 Bxb5 29.Rxb5 Qc7 30.Rxb8+ Qxb8 31.Qf5 Qe8 32.Rb1 Nab3 33.e3 Qxa4 34.Bf1 Qe8 35.Bd3 Nxd3 36.Qxd3 Nc5 37.Qf5 Qe4 38.Rb8+ Kf7 39.Rb7+ Kg8 40.Rb8+ Kf7 41.Rb7+ Kg8 42.Qc8+ Bf8 43.Rb8 Qe7 44.h4 Qf7 45.e4 Qe7 46.h5 Qf7 47.h6 Qe7 48.f3 Kf7 49.Kh2 Kg8 50.Kg2 Kf7 51.Ra8 Kg8 52.Qb8 f5 53.Ra7 Qf6 54.Rg7+ Kh8 55.Qe8 fxe4 56.fxe4 Qb2+ 57.Kh3 Qf6 58.Kg2 Qb2+ 59.Kf3 Qf6+ 60.Kg2 ½-½

  
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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #17 - 05/03/04 at 05:51:13
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Still no improvements on the Bykov-Tolush game? I am a bit disappointed.
  

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Re: Leningrad with 7... Nc6 8.d5 Na5
Reply #16 - 05/02/04 at 07:45:48
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You have had that many Leningrads this year?!  I have never faced it OTB!
  

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