| Sep-05-10 | | Frankenstein17: Just one move ruins entire effort.
62. ...a4?? |
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Sep-05-10
 | | tamar: Very tricky though. 62...Re1 amazingly also loses, while 62...Re3 draws! Best I can understand is Black has to keep access to horizontal checking squares once the King goes to the sixth rank. From e3 the rook can check on c3, then go Rh3-h6+ just in time. But after 62...Re1 63 Kd6 Rd1+ 64 Bd5 Rc1 and White has moved one crucial step forward, although the process is by no means complete (mate in 24) |
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| Sep-05-10 | | 4tmac: good ending! one little slip of trying to push the pawn and it was over |
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Sep-05-10
 | | HeMateMe: The tactical master strikes again! Would many players try 20. f4, opening up the long diagonal for black's light Biship, attacking white's king? seemed crazy, but Shirov came out of it with a better position. To anticipate <CG.COM> will this be titled "Shanghi Surprise"? |
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| Sep-05-10 | | Kinghunt: Why not the very natural 27. Bxf5? Black will have largely consolidated his position, be an exchange up, and have a good attack against white's very exposed king. |
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| Sep-05-10 | | Inf: The end reminds me of Fischer vs Larsen I think... |
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| Sep-06-10 | | notyetagm: http://www.thechessmind.net/blog/20... <His problem, I bet, is that he only knew the "second-rank defense" in the rook and bishop vs. rook ending, and that was unavailable to him on account of the extra pawn. <<<If he knew the old standby, the more traditional Cochrane defense, he could have held.>>> It was very clear that he didn't know it (he will very soon after this tournament, I have no doubt!), and as a result went down without much of a fight.> Amazing point is that Monokroussos believes that Wang Hao knew only the <SECOND RANK DEFENSE>, which he could *not* use in this game because the presence of the Black a-pawn negates the <STALEMATE TRICK> on which it is based. Wang Hao had to use the <COCHRANE DEFENSE> and apparently(!!) did not know it! A 2700 not knowing a basic endgame idea? Amazing, and it cost him a *valuable* 1/2-point. |
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| Sep-06-10 | | xanadu: Kinghunt: I thought the same; as you mention 27...Bxf5 seems the right continuation, although there are a lot of tactics yet. Complicated game... |
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| Sep-06-10 | | kurtrichards: 27. ... Bc6 is "chop suey"... whereas 27. ... Bxf5 is "lumpia shanghai"....lol :) |
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| Sep-06-10 | | polarmis: It seems it's all a bit stranger than Wang Hao not knowing the ending. From the Chessvibes report: http://www.chessvibes.com/reports/s... <[Wang Hao] didn’t use one of the two normal ways to defend and quickly lost anyway. His remarkable explanation was that he was suffering from a headache and wanted to end the game as soon as possible.> Plus Shirov explains his 23. Rxd4 blunder as simply being because he touched the wrong piece by mistake (he meant to take with the pawn first). |
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| Sep-06-10 | | polarmis: <notyetagm:A 2700 not knowing a basic endgame idea?> I think this ending's probably known by every 2700+, but Malakhov (rated 2725) had this to say recently: <In general, I don’t work on endgames. Devoting a week to studying the “R v B+P” endgame, which in practical games might occur once in 10 years? It’s not very practical. It’s better to devote that time to analysing openings, which might have a real influence on improving your results in upcoming events. Such an approach to training is used by a lot of players at the very highest level and maybe that’s why you get a “comedy of errors” in many of the games they play in certain unusual endgames.> http://www.chessintranslation.com/2... |
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| Sep-06-10 | | FISCHERboy: This is the second time they met... and the second time Wang lost. |
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Sep-06-10
 | | sbevan: <Kinghunt: Why not the very natural 27. Bxf5? Black will have largely consolidated his position, be an exchange up, and have a good attack against white's very exposed king.> <xanadu: Kinghunt: I thought the same; as you mention 27...Bxf5 seems the right continuation, although there are a lot of tactics yet. Complicated game...> If 27...Bxf5
what stops
28 c5+
followed by
28 Qxe5
Interposing the B doesn't stop it
28 c5+ Be6
29 Bxe6 +
With Ne4 to follow - idea the black Q must protect the P on e5 else mate. The N on e4 covers the only square the Q can go to after the threat Bg4 Could be wrong, have been before but this seems to work... |
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| Sep-06-10 | | notyetagm: <polarmis: <notyetagm:A 2700 not knowing a basic endgame idea?>
I think this ending's probably known by every 2700+, but Malakhov (rated 2725) had this to say recently: <In general, I don’t work on endgames. Devoting a week to studying the “R v B+P” endgame, which in practical games might occur once in 10 years? It’s not very practical. It’s better to devote that time to analysing openings, which might have a real influence on improving your results in upcoming events. Such an approach to training is used by a lot of players at the very highest level and maybe that’s why you get a “comedy of errors” in many of the games they play in certain unusual endgames.> http://www.chessintranslation.com/2...;
Yes, I understand that. Nowadays GMs spend the majority of their on opening theory. |
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Sep-06-10
| | tamar: Even Shirov did not know for certain if the a pawn changed the assessment of the R+B versus R ending. Probably not he said, but it encouraged him to try for a win. Its presence relieves White from stalemate positions, and it is one less file where the rook can check. Also, I think psychologically it is depressing, because Black has to be prepared to defend for 150 or more moves, if White forces the pawn to advance whenever he comes near the 50 move limit. |
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| Sep-06-10 | | percyblakeney: It just took Shirov a dozen moves to get a winning position from the start of the R+B vs R ending, and that while more or less blitzing out his moves against an opponent with more time on the clock. Even if he naturally got some help from Wang Hao his technique was impressive. |
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| Sep-06-10 | | notyetagm: 27...¥c6?
A miscalculation. Black would have
had an objectively winning position
after 27...¥xf5 with the idea of 28.c5+
¢g7 29.£xe5+ ¢h6 and White,
crucially, is unable to exchange
queens: 30.£f4+ g5 31.£d6+ ¥g6!–+. |
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| Sep-07-10 | | kungfufighter888: What a sad ending to this game. This is epic. |
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| Sep-07-10 | | apexin: its great to see Shirov playing well agauin! |
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| Sep-09-10 | | JohnBoy: For the record: a reference to the Cochrane defense can be found at http://en.wikipedia.org/wiki/Rook_a... |
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Kibitzing
sac: 26.Rxe4