kylemeister wrote on 02/06/14 at 16:26:26:
ErictheRed wrote on 02/06/14 at 10:43:49:
The one game with these totally blocked kingsides (as could happen after 15.h5 g5 in your game) that I always think of is:
http://www.chessgames.com/perl/chessgame?gid=1070619.
Bareev annotated it in Dvoretsky's
Positional Play. Black's position was so desperate that he had to give up a piece for complications, and even then White was for choice, then just winning. It took an incredible amount of "Kasparovness" for Black not to lose that game. In my head, I imagine that if Black wasn't the reigning World Champ with all of his intimidating body language, etc, that Bareev would have scored the full point.
This is interesting -- did Bareev write something like, "I've really changed my mind since my Informant notes, when I thought it should be equal with or without the piece sac"?
I don't know the Informant notes to which you're referring, and I may be exaggerating a bit about how desperate Black's position was, as Bareev does indicate that Black was probably OK (though White still for choice) without the piece sac. Some hyperbole on my part perhaps, but I meant later in the game.
Reading between the lines a bit, Bareev seems to indicate that 26...Bb5? should have been the losing mistake. His annotations were more conversational than anything else, however, and I don't have the book with me. The feeling I got from his annotations were more that "Black would be okay after 17...Qxd2 because he's Kasparov" more than Black is objectively fully equal. But I do think that Black can hold without too many problems in that ending because he has time to route his bad bishop outside of the pawn chain, i.e. ...Bg7-f8-e7-d8, etc.
I didn't mean to suggest that White was winning or anything after 17...Qxd2, but I think the game does demonstrate how desperate Black's position
can be in these structures. If he weren't able to get his king's bishop outside of the pawn chain and advance his pawns to a4 and b5, for instance, I think he's strategically lost. I meant that this game was instructive because it shows how Black should defend actively if he ends up in this kind of kingside bind. It's unlikely that Hicetnunc's opponent could have managed getting his pawns off of a5, b6, and c7, which would have meant complete disaster as he could never activate his king's bishop, as Kasparov could.
I can say that I recently spent many hours analyzing this game (with the aid of an engine), and that I personally think that Bareev underestimated his advantage at times. FWIW, I think that Black was lost after 23...f5? (my annotation), which Bareev makes no comment on. My analysis indicates that Kasparov could have held/had full counterplay/unclearness/whatever after 23...Be8!, the point being that 24.Nf2 f5! 25.gxf5 Bxh5+ gets the White h-pawn off of the board and gives Black connected passed pawns and a lot of counterplay. One very fun line (not at all forced) goes 26.Kd2 Rxf5 27.Nfxe4 Rfxd5!? 28.Nxd5 Rxd5+ 29.Ke1! Re5! 30.Ng3 Rxe3+ 31.Kd2 Rxg3! 32.Rxg3 Be5! and I don't know how to evaluate that position.
In the game, Bareev's 26.Rh1! should have won, depriving Black of connected passed pawns. Bareev says that his 29.Rd1? was the mistake that let victory slip.
I don't want to post more of my analysis at this time, sorry.