ChessPub Forum - C18: Winawer - Poisoned Pawn variation

dom

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Re: C18: Winawer - Poisoned Pawn variation
Reply #27 - 07/22/12 at 10:03:00

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Small revival of the thread because of game Leko-Bartel, Dortmund 2012 http://www.chessbase.com/newsdetail.asp?newsid=8348
Leko wants a win, and it can explain some choices prior to 17th move: 15.Rb1 d4 16.Rg1 is Tait's variation and alternatives to 15...d4 were dealt on some occasions in current forum ; 15.Qxc3 d4 or 15...Kb8 are dealt in Watson's analysis, 15..Rg4 needs further investigations.

I recall these lines because Leko refrains from grabbing c3 pawn and prefered to play the 17.Be3 move (Van der Grinten,Riemelmoser,Latschach 2011) in this position following the h pawn push:

14.Qd3 Nf5 15.h6 Rg6 16.h7 Rh8 17.Be3

and here, better for Black would have been 17...Nxe3 with the idea to take back the dangerous h pawn rather than securing attacking ideas on center with d4: the d4 pawn will fall quickly and one black rook will be missing on d file.

17.Rh3 d4 18.Rb1 is "transposition to famous game Bronstein-Uhlmann" (Tait)...with 18..Be8!? Tallin 1977

“Learn from the mistakes of others. You can never live long enough to make them all yourself.” - Groucho Marx

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MartinC God Member Offline I Love ChessPublishing! Posts: 2110 Joined: 07/24/06	Re: C18: Winawer - Poisoned Pawn variation Reply #26 - 07/12/12 at 09:36:32	Post Tools	Print Post
	Unsurprisingly perhaps quite a detailed look at 7.. cd vs 7.. Qc7 in Play the French 4. Overall conclusion: - 'Although I had originally chosen 7.. cd as my main line, I finally decided to let the reader choose'. There's seemingly (and unsurprisingly) a bunch of fairly plausible white ideas after 7.. cd 8 Bd3 Qa5 besides forcing a draw 10 Bd2 above gets a mention with Nbd7 seemingly the answer and some analysis up to move 28..... What's perhaps slightly curious in context is not mentioning 7.. Qc7 8 Bd3 c4 at all. Given how (astonishingly) free he is in suggesting out of repitoire sidelines of interest, it seems possible that he doesn't much like it for some reason.


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dom

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Re: C18: Winawer - Poisoned Pawn variation
Reply #25 - 05/18/12 at 12:17:11

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Last chesspub update comes with an upgrade analysis of Tait's variation and some comments about Williams's book (Attacking Chess - The French - Everyman Chess) I continue to browse.

16...f6?! 17.g4 Nh4 18.exf6 e5 19.Kd1!? (Watson assessment and variations are clear enough about 19.f7 which seels roughly equal)

Kd1 is prophylactic idea vs the usuals trick on e file and f3 square. It's difficult for Black to get an "easy" line

19...e4 20.Qxe4 Rxg4 (20...Rde8 21.f7) 21.Rxg4 Bxg4 22.Rb3 d3 23.Rxd3 Bf5 24.Qb3 Bxd3 25.cxd3 with a serious advantage for White in the ending

19...Rge8 20.f7 Rf8 21.Qg3 Ng6 22.f5 Nge7 23.Bg2 Rxf7 24.Qb3 Rff8 25.Bg5+/-

19...Bxg4 20.Bh3 e4 21.Bxg4+ Rxg4 22.Qh3 d3 23.Qxg4+ Kb8 24.cxd3 +/-

19...Be6 20.Rg3

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

16...Na5 17.Rb4 a6 18.g4 Ne3

(18..Nh4

19.a4!? f6 20.exf6 e5 21.fxe5!? (21.f7 Stelfish-Poldauf,Chalkidiki 2002 (Vitiugov) ; 21.Kd1 e4) Qxe5 22.g5 +/-)

19.Nxd4 Bb5 20.Nxb5 axb5 21.Qe4 Qc3+ 22.Kf2 Rd1 23.Bd2 (23.Bd3 Rxg1 24.Kxg1 Rxg4+ 25.Kf2 Rg2+ 26.Kf1 Rxh2 27.Rxb5 Nc6 28.Rb1 Nf5 29.Qa4=) Rd2+ 24.Be2 Qh3 25.Ke1 (25.Rxb5? Von Buelow-Poldauf,Bundesliga 2002 ) Rxe2+ 26.Kxe2 (26.Qxe2 Nf3+ 27.Kf2 Nxg1 28.Kxg1 Rxg4+ 29.Kh1 Rg3 30.Bc1 Nc6 31.Rxb5 Nd4=)
)

19.Bxe3 Bb5 20.Rxb5 dxe3 21.Rxb7 Nxb7 22.Nd4 Qb6!?

23.c3 Nc5 24.Qxe3 Kb8 with the idea Na4 or Rc8 is equal

“Learn from the mistakes of others. You can never live long enough to make them all yourself.” - Groucho Marx

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MartinC God Member Offline I Love ChessPublishing! Posts: 2110 Joined: 07/24/06	Re: Winawer - Poisoned Pawn variation Reply #24 - 07/02/11 at 17:14:06	Post Tools	Print Post
	Interesting about 10 Bd2. Its a reasonably big line in the Rustemov this (7 .. o-o 8 Bd3 Qa5 etc) so not unknown but 10 Bd2 hardly mentioned in my books beyond dc 11 Bxc3 Qc7. (or in the chesspub e-book.). Certainly that position from Macieja - Vysochin doesn't look easy to avoid or hugely comfortable. It isn't often that white gets his bishops developed as nicely as that! Perhaps 12.. Nbd7 instead of Nbc6? Gives black the very useful ideas of f5 and Nc5 x d3. Bxh7+ ^ Qxh4+ x e7 is the usual problem but with the extra pawn and whites center a bit cut down, might well be OK. A definite comfort from the white perspective, as even if (as it seems) 7 .. Qc7 8 Bd3 c4 is pretty sound it probably just isn't that likely from a club level PPawn player.


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Keano God Member Offline Money doesn't talk, it swears. Posts: 2924 Location: Toulouse Joined: 05/25/05 Gender:	Re: Winawer - Poisoned Pawn variation Reply #23 - 07/02/11 at 12:28:23	Post Tools	Print Post
	Yes Bd3 is better in that line but I think he meant to use it for comparison purposes and the comparison is interesting alright. Going back to this move-order question I've been digging deeper and I am not convinced at all with this claim that 7...cxd4 is the more accurate way to enter the poisoned-pawn. For one thing the main-line (also given by Vitiugov) is a forced-draw: 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 cxd4 8.Bd3 Qa5 9. Ne2 O-O 10. Bg5 Ng6 11. f4 Nd7 12. Bxg6 fxg6 13. Qxe6+ Rf7 14. Qe8+ Rf8 15. Qe6+ etc. as happened in various games including Svidler-Grishchuk 2009. Fair enough, you might think, shouldn't Black be happy with a draw? And indeed he should. But my concern is not only this but that 10.Bd2!? (not even mentioned by Vitiugov) for me leads to very pleasant compensation for the pawn and a ready-made attack: e.g. Macieja-Vysochin 2010 went : 10... dxc3 11. Bxc3 Qc7 12. O-O Nbc6 13. Qh5 Ng6 14. f4 and already I just don't fancy Black (1-0 in 44) Going back to the classical and more popular 7...Qc7 then if 8.Bd3 c4 9.Be2 and instead of the very popular 9....Nf5 the move 9...0-0 followed by the f6 break as discussed earlier is the next thing on my list to investigate. I noticed that GM Barsov was playing this way and it may be another viable line.


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MNb God Member Offline Rudolf Spielmann forever Posts: 10776 Location: Moengo Joined: 01/05/04 Gender:	Re: Winawer - Poisoned Pawn variation Reply #22 - 07/02/11 at 10:35:45	Post Tools	Print Post
	MartinC wrote on 07/02/11 at 09:01:59: Well for comparison, Kindermann/Dirr think 7 Qg4 o-o 8 Nf3 Qa5 9 Bd2 c4 is entirely playable for black -because of the quick counterplay via f6 then e5. It has been known since 20 years that 8.Bd3 is critical. One point is that after 8...c4 9.Bh6! Ng6 10.Bxg6 fxg6 11.Be3 White has a nice plus.

	The book had the effect good books usually have: it made the stupids more stupid, the intelligent more intelligent and the other thousands of readers remained unchanged. GC Lichtenberg
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MartinC God Member Offline I Love ChessPublishing! Posts: 2110 Joined: 07/24/06	Re: Winawer - Poisoned Pawn variation Reply #21 - 07/02/11 at 09:01:59	Post Tools	Print Post
	Well for comparison, Kindermann/Dirr think 7 Qg4 o-o 8 Nf3 Qa5 9 Bd2 c4 is entirely playable for black -because of the quick counterplay via f6 then e5. With black breaking like that the positions are more like semi blocked I think. I suppose Qc7 is going to be a wasted tempo if black follows up here with Qa5 (seems to most of the time) and white has some f4 ideas etc, but not totally different. One thing for sure after checking my database for some games (also via Nf5) is that anyone who thinks this is too dull has a very low boredom threshold!


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MNb God Member Offline Rudolf Spielmann forever Posts: 10776 Location: Moengo Joined: 01/05/04 Gender:	Re: Winawer - Poisoned Pawn variation Reply #20 - 07/01/11 at 22:21:43	Post Tools	Print Post
	Well, yes and no. The point Black makes is that he/she can generate enough counterplay against the centralized white King. I don't necessarily think that myself but try to reflect Black's point of view.

	The book had the effect good books usually have: it made the stupids more stupid, the intelligent more intelligent and the other thousands of readers remained unchanged. GC Lichtenberg
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punter Junior Member Offline I Love ChessPublishing! Posts: 78 Joined: 05/18/11	Re: Winawer - Poisoned Pawn variation Reply #19 - 07/01/11 at 21:42:44	Post Tools	Print Post
	But in the mainline white can play 13.h4 with the idea of going h5-h6-h7 and winnining. Isn't this plan the reason why winawer is considered dubious nowadays ?


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Keano God Member Offline Money doesn't talk, it swears. Posts: 2924 Location: Toulouse Joined: 05/25/05 Gender:	Re: Winawer - Poisoned Pawn variation Reply #18 - 07/01/11 at 17:19:14	Post Tools	Print Post
	yes ...c4 and ...Nf5 is what most GMs are doing now, somehow think White should have an edge there though, although its the type of blocked war of attrition Frenchies will be ready for. Moskalenko gives it as one of 3 ways why Bd3 is nothing to fear.


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MartinC God Member Offline I Love ChessPublishing! Posts: 2110 Joined: 07/24/06	Re: Winawer - Poisoned Pawn variation Reply #17 - 07/01/11 at 16:10:45	Post Tools	Print Post
	Yes its not at all clear to me why you'd ever use 7 ..Qc7 as 7 .. cd has no obvious cost and extra options vs 8 Bd3. Mind you I suspect that a lot of the danger of 7 .. Qc7 8 Bd3 is self inflicted by people insistent on 'blundering' their kingside pawns 8 .. c4 ^ o-o, f6 etc or Nf5, Bd7, o-o-o etc is rather solid.


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Keano God Member Offline Money doesn't talk, it swears. Posts: 2924 Location: Toulouse Joined: 05/25/05 Gender:	Re: Winawer - Poisoned Pawn variation Reply #16 - 07/01/11 at 11:58:35	Post Tools	Print Post
	MNb wrote on 05/05/09 at 20:47:54: How do you rate 7...cxd4 compared to 7...Qc7 ? As White I play the Geller Gambit, but 7...cxd4 8.Bd3 Qa5 looks good for Black. This was always something that confused me - Moskalenko seems to not believe there is anything at all wrong with the more popular 7...Qc7. I will need to check what he says about 7...cxd4 8.Bd3 Qa5 I always thought this was murky after 9.Ne2 but its quite possible as you say that its just good for Black.


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MNb God Member Offline Rudolf Spielmann forever Posts: 10776 Location: Moengo Joined: 01/05/04 Gender:	Re: Winawer - Poisoned Pawn variation Reply #15 - 03/26/10 at 01:27:31	Post Tools	Print Post
	dom wrote on 01/04/10 at 11:35:29: B) 13.Nxc3 a6 { better to play first the Na5-Nc4 moves before ooo } 14.h4 Nf5 15.Rh3 Na5 16.Rb1 Nc4 17.h5 ooo 18.Rb4 Bc6!? Grischuk I am not sure if I like 18...Bc6. When I faced this line in an email game I did not know how to meet 19.Nd1 Bb5 - a loss of tempo - 20.Qc3. Hence I tried 18...Kb8, but wasn't all too happy either (and subsequently lost). I concluded that the Poisoned Pawn is too risky to my taste.

	The book had the effect good books usually have: it made the stupids more stupid, the intelligent more intelligent and the other thousands of readers remained unchanged. GC Lichtenberg
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Jonathan Tait God Member Offline Posts: 617 Location: Nottingham Joined: 07/11/06	Re: Winawer - Poisoned Pawn variation Reply #14 - 03/25/10 at 16:53:04	Post Tools	Print Post
	dom wrote on 05/05/09 at 11:00:20: B1) 13.Rb1 d4 14.h4 Nf5 15.h5 ooo 16.Rg1 is Tait's variation ... hot debate on chesspub really? any idea whereabouts?

	blog inspired by Bronstein's book, but using my own games: http://200opengames.blogspot.co.uk/
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MNb God Member Offline Rudolf Spielmann forever Posts: 10776 Location: Moengo Joined: 01/05/04 Gender:	Re: Winawer - Poisoned Pawn variation Reply #13 - 01/05/10 at 02:25:42	Post Tools	Print Post
	Thanks.

	The book had the effect good books usually have: it made the stupids more stupid, the intelligent more intelligent and the other thousands of readers remained unchanged. GC Lichtenberg
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dom God Member Offline Posts: 908 Location: Toulouse Joined: 01/11/03 Gender:	Re: Winawer - Poisoned Pawn variation Reply #12 - 01/04/10 at 11:35:29	Post Tools	Print Post
	Good lines for Black ? A) 13.Qxc3 Nf5 14.Rb1 d4 15.Qd3 { novelty of game Balashov-Kosten,Minsk 1986 } ooo 16.Rg1 Nfe7 { f6 Brenke-Farago,Lippstdadt 1994 ; Be8 Sfefansson-Kaminski,Linares 1995 ; Nce7 Atakisi-Cooke,2000 ; Na5 Hjartarson-Nogueiras,Belfort 1988 } B) 13.Nxc3 a6 { better to play first the Na5-Nc4 moves before ooo } 14.Ne2 { 14.h4 Nf5 15.Rh3 Na5 16.Rb1 Nc4 17.h5 ooo 18.Rb4 Bc6!? Grischuk ; 14.Rb1 Na5 15.Ne2 Nf5 or 15.Bd2 Rc8 } Rc8 novelty from game Chandler-Timman,Linares 1988. C) 13.Rb1 d4 14.h4 { 14.Nxd4 Nxd4 15.Qxd4 Nf5 16.Qf2 Qc6; 14.Rg1 ooo Kritz-Cornette,Ascona 2007 chesspublishing update december 2007 ; 14.Ng3 ooo Smirine-Short,Tilburg 1992 } Nf5 15.h5 ooo and now I believe Tait's variation is best line for White with 16.Rg1 because: 16.g3 Nce7 ; 16.Rh3 Qa5 ; 16.h6 Rg6 ; 16.Kf2 Rdf8 ; 16.Qf3 Nce7 and now after 16.Rg1 f6 17.g4 { 17.exf6?! e5 18.g4 Nd6 } Nh6= D) 13.Be3 Nf5 Spassky-Korchnoi,Belgrade 1977 E) 13.Ng3 d4 F) 13.Rg1 Svidler-Berg,Heraklion 2007 and Shirov-Shulman,Kharly-Mansiyisk 2007 13..ooo 14.Nxc3 Nf5 +=/=

	“Learn from the mistakes of others. You can never live long enough to make them all yourself.” - Groucho Marx
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Paddy God Member Offline The truth will out! Posts: 965 Location: Manchester Joined: 01/10/03 Gender:	Re: Winawer - Poisoned Pawn variation Reply #11 - 07/27/09 at 14:18:33	Post Tools	Print Post
	Paddy wrote on 07/22/09 at 19:28:16: Poisoned Pawn-watch There are two interesting recent PP games with annotations at http://www.chessbase.com/newsdetail.asp?newsid=5594 and http://main.uschess.org/content/view/9544/539 Robson-Shankland is also annotated (lightly) in this weeks's Washington Post article by Kavalek.


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Paddy God Member Offline The truth will out! Posts: 965 Location: Manchester Joined: 01/10/03 Gender:	Re: Winawer - Poisoned Pawn variation Reply #10 - 07/22/09 at 19:28:16	Post Tools	Print Post
	Poisoned Pawn-watch There are two interesting recent PP games with annotations at http://www.chessbase.com/newsdetail.asp?newsid=5594 and http://main.uschess.org/content/view/9544/539


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dom God Member Offline Posts: 908 Location: Toulouse Joined: 01/11/03 Gender:	Re: Winawer - Poisoned Pawn variation Reply #9 - 07/06/09 at 10:46:16	Post Tools	Print Post
	Thanks Paddy White tried 14.Rg1 in game Liu-Shulman...looks like a Tait's variation without the Rb1 move ? There are also some other French games..I noticed a McCutcheon and Fort Knox variations. **** I noticed no more update of free onlinedatabase www.chessbase.com: reader must own Chessbase 10. (maybe I am late).

	“Learn from the mistakes of others. You can never live long enough to make them all yourself.” - Groucho Marx
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Paddy God Member Offline The truth will out! Posts: 965 Location: Manchester Joined: 01/10/03 Gender:	Re: Winawer - Poisoned Pawn variation Reply #8 - 07/03/09 at 09:43:03	Post Tools	Print Post
	Two of the most interesting French defence specialists, GMs Shulman and Bhat, are currently playing in the World Open in Philadelphia, where the bullets have already been flying in a couple of Poisoned Pawn games! http://www.worldopen.com


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schtroumfechecs YaBB Newbies Offline I Love ChessPublishing! Posts: 11 Joined: 06/20/07	Re: Winawer - Poisoned Pawn variation Reply #7 - 06/12/09 at 19:12:39	Post Tools	Print Post
	Thanks for your help! In fact, the line you offers here was exaclty the game continuation but black tried to forced thing too early later in the game. The more I look at the games, your update and rybka analyses, the more it seems to me that black should be prudent in trying to force things. My impression is that white could often be short in constructive moves or plans (of course if black played well) but well prepared to early actions from black. Then i think black should keep is pieces as active as possible using tactics too avoid white actives plans, waiting some weakness from white play (which has problem too find good moves) and only then black could hits! This is probably what you means by "In my notes you can see some variations where either color could make a mind boggling quiet move which wins on the spot! ". Thank you very much again.


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Kgwm Junior Member Offline I Love ChessPublishing! Posts: 51 Joined: 05/30/08 Gender:	Re: Winawer - Poisoned Pawn variation Reply #6 - 06/10/09 at 16:55:08	Post Tools	Print Post
	schtroumfechecs wrote on 06/10/09 at 16:09:18: This may update is really interesting, especially about the Winawer PP. It could make me think about playing it at board, but i have one question. In the comments of the game Smirnov-Arsalanov, Kevin Goh Wei Ming indicate that 16..f6 is a really playable alternative, but i think he don't cover the critical 19.f5 (instaed of 19.f7 !? or 19.Kf2). I believed the 16...f6 line under the cloud because i saw a game commented by Neil where 19.f5 crushed black . Maybe i missed sommething or an important game where black succesfully met 19.f5 Help needed please!! PS: Sorry for my approximate english language. Hi people, I never really considered 19.f5, for whatever reasons but now it seems to be the a perfectly logical reply. Well, I did what every lazy columinist/writer would do, I switch on my engines and hope they point out an immediate refutation. And they did! 19.f5?! ...e4! opening up the e-file with some concrete tactics in mind. 20.Qxe4 Rge8 (White's queen is badly placed now) 21. Qf4 Ne5! with great compensation. Regards, Wei Ming


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schtroumfechecs YaBB Newbies Offline I Love ChessPublishing! Posts: 11 Joined: 06/20/07	Re: Winawer - Poisoned Pawn variation Reply #5 - 06/10/09 at 16:09:18	Post Tools	Print Post
	This may update is really interesting, especially about the Winawer PP. It could make me think about playing it at board, but i have one question. In the comments of the game Smirnov-Arsalanov, Kevin Goh Wei Ming indicate that 16..f6 is a really playable alternative, but i think he don't cover the critical 19.f5 (instaed of 19.f7 !? or 19.Kf2). I believed the 16...f6 line under the cloud because i saw a game commented by Neil where 19.f5 crushed black . Maybe i missed sommething or an important game where black succesfully met 19.f5 Help needed please!! PS: Sorry for my approximate english language.


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BPaulsen God Member Offline I Love Light Squares! Posts: 1702 Location: Anaheim, CA, USA Joined: 11/02/08 Gender:	Re: Winawer - Poisoned Pawn variation Reply #4 - 06/10/09 at 04:31:09	Post Tools	Print Post
	12...d4 got some love in the recent update, and I'm liking it the more I look at it.

	2288 USCF, 2186 FIDE. FIDE based on just 27 games.
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BPaulsen God Member Offline I Love Light Squares! Posts: 1702 Location: Anaheim, CA, USA Joined: 11/02/08 Gender:	Re: Winawer - Poisoned Pawn variation Reply #3 - 05/13/09 at 11:53:32	Post Tools	Print Post
	Paddy wrote on 05/13/09 at 11:08:34: Yury Shulman continues to provide us with interesting material in the French. As well as being one of the main champions of 3...Be7 vs the Tarrasch, he is prepared to play the Winawer PP against anyone! According to my database, he has won his last four PP games with Black, including two in the current USA championship! http://saintlouischessclub.org/US-Championship-2009 http://main.uschess.org/content/view/9369/529/ The Winawer PP used to my favorite thing in the world when I was working towards where I am now. Then computers came, and ugh... I just don't have that kind of faith in it. It's easier for me to play 7...0-0 8. Bd3 f5, even though it doesn't have anywhere near the dynamic chances. It is good to see a GM playing it. Maybe it'll reignite my interest, but there's some critical lines that have to be addressed. [QUOTE=MNb]How do you rate 7...cxd4 compared to 7...Qc7 ? As White I play the Geller Gambit, but 7...cxd4 8.Bd3 Qa5 looks good for Black. [/quote] 7...cxd4 is the more accurate move order for the PP (in my opinion, I've been playing the French Winawer since I started playing chess, for whatever that's worth), precisely because it avoids the Bd3 lines due to Qa5. I haven't found anything for white better than going straight into the main lines of the PP, at least if white is trying for a win. It can't be a bad thing to eliminate one of white's major options, it certainly cuts down on preparations.

	2288 USCF, 2186 FIDE. FIDE based on just 27 games.
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Paddy God Member Offline The truth will out! Posts: 965 Location: Manchester Joined: 01/10/03 Gender:	Re: Winawer - Poisoned Pawn variation Reply #2 - 05/13/09 at 11:08:34	Post Tools	Print Post
	Yury Shulman continues to provide us with interesting material in the French. As well as being one of the main champions of 3...Be7 vs the Tarrasch, he is prepared to play the Winawer PP against anyone! According to my database, he has won his last four PP games with Black, including two in the current USA championship! http://saintlouischessclub.org/US-Championship-2009 http://main.uschess.org/content/view/9369/529/


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MNb God Member Offline Rudolf Spielmann forever Posts: 10776 Location: Moengo Joined: 01/05/04 Gender:	Re: Winawer - Poisoned Pawn variation Reply #1 - 05/05/09 at 20:47:54	Post Tools	Print Post
	How do you rate 7...cxd4 compared to 7...Qc7 ? As White I play the Geller Gambit, but 7...cxd4 8.Bd3 Qa5 looks good for Black.

	The book had the effect good books usually have: it made the stupids more stupid, the intelligent more intelligent and the other thousands of readers remained unchanged. GC Lichtenberg
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dom

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C18: Winawer - Poisoned Pawn variation
05/05/09 at 11:00:20

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Before next update with the subject, I post here current state of my recorded variations and games references....

These are lines Black can play. I don't want to prove anything else.
Your comments are welcome

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 Ne7 5.a3 Bxc3+ 6.bxc3 c5 7.Qg4 Qc7

8.Qxg7 (8.Bd3!? Geller's gambit ; 8.Bd2 is interesting sub-line, transposing if Black wishes to 7..Kf8 lines but maybe the simple 8...oo is good J Kleinert vs C Natsidis, 2007 ; 8.Kd1 oo Enders Uhlmann,Allemagne 1985)

8...Rg8 9.Qxh7 cxd4 10.Ne2 (10.Kd1!? Euwe's idea where 10...dxc3 seems fine ; 10.Qd3 Dxe5 Dom and dxc3 to follow)
and now

A) 10....dxc3!? Bronstein's move

11.f4 Bd7!? (11...b6!? is Minev's "forgotten idea" Shaw-Levitt, chesspublishing update may 2004)

12.Qd3 (12.Rb1 Nbc6 13.Qd3 d4!? 14.Rg1 Kritz-Cornette,Ascona 2007 or 14.Ng3 Smirin-Short,Tilburg 1992)

12..Nf5 (12...Nc6 13.Rg1 Svidler-Berg,Heraklion 2007 and Shirov-Shulman,Kharly-Mansiyisk 2007 chesspublishing, update december 2007)

13.Nxc3 (13.Qxc3 McDonald adviced first 13..Nbc6 to transpose to main line because Qxc3 less dangerous than Qxc3 in main line...but pointed out not so clear in followig update; 13...Qxc3 14.Nxc3 Nc6 15.Rb1 b6 to try) or 13.Rb1 or 13.g3

13...Na6!?

B) 10....Nbc6 main line

11.f4 (11.h4 dxc3 Sulskis-Williams,Liverpool 2006 chesspublishing september 2006 ... interesting variation for analyzing a quick h-pawn push...leading only to equal middlegame) dxc3

12.Qd3 (12.Be3 Bd7 13.Qd3 Spassky-Korchnoi,Belgrade 1977 13...Nf5 or 13...Rc8 or 13...ooo)

12...Bd7 (12..d4 is unclear gambit according to Gligoric)

and now after 13.Ng3 or 13.h3 Black can play 13...d4!?

13.Be3 is Spassky-Korchnoi,Belgrade 1977 game see above 13.Rg1 ooo 14.Nxc3 transposes to 13..Nxc3 and 13.h4 transposes to A) (the quick h pawn push) hence three main sub-lines 13.Rb1, 13.Qxc3 and 13.Nxc3

B1) 13.Rb1 d4 14.h4 Nf5 15.h5 ooo 16.Rg1 is Tait's variation ... hot debate on chesspub and I think critical line for Black since White is always += with his strategy (to give d4 pawn and use an effective h and g pawns push)

B2) 13.Qxc3 Nf5 (given as best move by McDonald & Harley and Watson)

14.Rb1 (to avoid Qb6 which can occur after 14.Bd2 or 14.Rg1; 14.Ng3 Nxg3 ; 14.g3 or 14.h4 then 14...Rc8 ; 14.h3 d4)

14...d4 15.Qd3 Balashov-Kosten,Minsk 1986 15...ooo 16.Rg1!

16...Nfe7!?

B3) 13.Nxc3 a6 (13...Na5!? to be analysed)

14.Rb1

(14.Ne2!? is system adviced by Khalifman Timman-Short,Rotterdam 1989 14...Rc8 - to forbid a little le positional blockade with Nd4 Chandler-Timman,Linares 1988 - and now 15.Rb1 Na7! ; 15.Bd2 Nf5 Gallagher-Apicella,Biel 1992 ; 15.Rg1 Na5 Dutreeuw-Apicella, Bruxelles 1993 ; 15.h3 Na7! Van den Abbe-Meessen, Anvers 1998)

(14.Bd2 Na5! ; 14.h4 Nf5 15.Rh3 Na5 16.Rb1 Nc4 or 16...Bc6 )

14....Na5! Karjakin-Ni Hua, Moscou 2005 (Chesspublishing) and Hort Nogueiras,Bienne 1985

15.Ne2 (15.g3 or 15.Bd2 then 15..Rc8 ; 15.h3 Nc4 ; 15.h5 Nf5 16.Rh3 Nc4 or 16..Bc6) Nf5 (15..Rc8 16.Nd4! )

16.Rg1 (16.h3 Ba4 Psakhis-Vaisser,Sochi 1988 ; 16.Qc3 Qxc3 Ruzicka-Vochozka, Czech republic 1997; 16.h4 Rc8 Nygren-Andersson,corr 1995 ; 14.Bd2 Bb5! ; 14.Ng3 Nxg3 Radovanovic-Rigo,Estensi 2003) Ba4

17.c3 Bb5 Draw. Spassky-Nogueiras,Reggio Emilia 1986

« Last Edit: 07/21/11 at 16:57:08 by dom »

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