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Later Kibitzing> |
| Mar-11-06 | | dzechiel: Found the bishop and rook sacrifices, didn't think about 31 Kh1, but by then the game was going downhill for white and picking up speed. Good king moves by Korchnoi to evade white's queen. |
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| Mar-11-06 | | Ingolf: Didn't see that. After 30.f4 Rxg3+ 31.Kh1 Rxe3 32.Qg2, it seems all black can achieve is an endgame one pawn up, or am I missing something? My guess was 28.- d4 29.cxd4 Bxd4 with the idea of Rh6 and then after the f-pawn moves Bxe3. If 30.Qd2 you can still play 30.-Rh6 because of 31.Qxd4+? Rg7 and h2 can't be covered. After f3/f4 black plays Rxg3 as in the game, only now he still has his bishop. |
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| Mar-11-06 | | Averageguy: I got the right idea, but for some reason or another I thought 28...Bd4 was the correct move, which it isn't as it doesn't gain that all important tempo. |
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| Mar-11-06 | | LoFarkas: <Fezzik: I wonder how the computers did with this one?>
Comps are absolute butchers of puzzles. CM9000 found up to 30. ... Rxg3 in 8 seconds. Then it continues with hxg3, which leads to a r+r v q endgame where white has the rooks and loses but not without a fight. Somebody once posted a devilish endgame puzzle, at www.chessworld.net
Reportedly,
"The most interesting try by the Polgar infants was 1.Bf1 etc. It took me a minute to find the refutation: 6...Kf6! 7.Kd4 Kg5 and draw. Sophie and Judit sighed and went back to work, giving me the full solution in 22 minutes "Both Zsuzsa Polgar and Mikhail Botvinnik ... needed 17 minutes to find the correct solution, without moving the pieces on the board."
Another GM also came up with an incorrect solution first. So some of the greatest players of the century struggled with the problem for 10+ minutes... CM9000 spits out the full line of the solution of that one in 3 seconds! Puzzle at http://www.chessworld.net/chessclub... |
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| Mar-11-06 | | LoFarkas: OK, the Polgars were young at the time and Botvinnik... well, wasn't, but you get the idea. |
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| Mar-11-06 | | dakgootje: right idea, wrong moves |
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| Mar-11-06 | | ckr: <Ingolf> I thought the same, but 31.qxd4+ Rg7 32.Ng4 white can return the piece defend h2 and draw the Q away, now 33.Qxg4 Qxe4 34.Qh3 Qg2  Black will still win but it is second rate compared to the text move, but speaking as a second rate player, I'll take it. :-) Also looked at 30.Qd2 e5 33.Re2 and white seems to put up a better defense |
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| Mar-11-06 | | ckr: Of course, I looked at Bxc3 bxc3 and thought, No way Jose! |
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| Mar-11-06 | | Soltari: lol, I saw the combination till 29...Rh6 and thought it was over for white. Never saw the excellent defence 30.f3. |
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| Mar-11-06 | | DexterGordon: So what does Black have after 30...Rxg3 31.hxg3? The best I can see is the Q+P vs R+R endgame that <LoFarkas> mentioned: 31...Qh1+ 32.Kf2 Rh2+ 33.Ng2 Rxg2+ 34.Ke3 Rxe2+. Maybe Chessmaster Nine Billion has confidence entering an endgame like that, but to me it didn't seem clearly winning! |
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| Mar-11-06 | | eunuch lust: Ciolombianito...Did you mean why not 35...Rxh2? If so, it's because the white queen is covering the sqaure from across the board. |
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Mar-11-06
 | | OBIT: When I studied the position, I thought the bishop WAS a key component to the attack. So, like <Monoceros>, I went with 28...Bxe5. The bishop's usefulness becomes evident after 29. f3? Bxg3! and 29. Kh1? Rh6 30. f4 exf4 31. Rxf3 Bxg3. However, 29. f4! exf3 30. Rxf3 seems to defend. Darn, looks like the GM played the position better than I would have. :) |
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| Mar-11-06 | | kevin86: This game had a strange idea:black threatened mate on move 25-then in a slightly different situation-he repeats the threat four moves later! I didn't get the key when I saw the problem,but got it when I saw the earlier threat. The finish is elegant:black thrice attacks h2--the one rook being an obstruction to any defenders along the 2nd row-and not just another attacker. |
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Mar-11-06
| | OBIT: <DexterGordon>: in the 30...Rxg3 31. hxg3 Qh1+ 32.Kf2 Rh2+ 33. Ng2 Rxg2+ 34. Ke3 line, 34...Qh6+ should be simpler than the immediate capture. After 35. f4 (or 35. Kd4 Qf6+) Rxe2+ followed by 36...Qg7, the Black queen picks off a second pawn and dominates the board. |
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| Mar-11-06 | | Quant: How is 28. ... Be5 refuted? |
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Mar-11-06
 | | LIFE Master AJ: I did not get this one. :(
I considered the idea of ...Bxc3; followed by ...Rxg3; but did not seriously consider the "switch-and-hit" tactic of ...Bxc3 and ...Rh6. I found an alternate method, (...Bf8); but it is vastly inferior to the line played by Korchnoi. |
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| Mar-11-06 | | DexterGordon: <OBIT>, thanks, that helps! The White K is certainly exposed and his pawns are scattered. |
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Mar-11-06
 | | Sneaky: In my opinion, moving the bishop just about anywhere (for example 28...Bf8) can be shown to be winning, but 28...Bxc3 is the most clear variation because it's so forcing. |
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Mar-11-06
 | | al wazir: Is there anything wrong with the quiet 28...h5 ? I think that wins even if white succeeds in exchanging ♕s, e.g., 29. f3 h4 30. Qg2 Qxg2+ 31. Kxg2 (31. Nxg2 hxg3 32. h3 Rh6) Be5. BTW, this wasn't my solution. I blew this one so badly I won't even post my try. |
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| Mar-11-06 | | EmperorAtahualpa: Very sharp puzzle! Missed it completely. :( |
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| Mar-11-06 | | Rawprawn: I go the first move and general idea of the rest, but didn't follow it through. |
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| Mar-11-06 | | khense: White ran out of checks pretty quick. (I guess Korchnoi knew that). |
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Mar-12-06
 | | Richard Taylor: I missed the first move here - but didnt look very long at this I saw Rh3 as an idea and the sac of the R on g3 though - cant say I got this as the first move is excellent and I missed it! This combination shows what a marvelous player Korchnoi is. |
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| Mar-14-06 | | Cyphelium: <al wazir> 28.- h5 29. f3 h4 30. g4 looks bad for black. |
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| Mar-14-06 | | patzer2: Black's 28...Bxc3! clears the g-file to prepare a decisive attack against the weakened White castled position. |
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Kibitzing
sac: 28...Bxc3