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| Apr-28-18 | | diagonalley: white's 25th move is cool... (didn't spot it... drat and double drat) |
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| Apr-28-18 | | mel gibson: I saw that first move but it looked risky.
Stockfish 8 says:
23. Nxc8
(23. Nxc8 (♘b6xc8 ♗a6xf1
♘c8xe7+ ♔g8-h8 ♗e3-d2 ♕a5-b6 ♖a1xf1 ♕b6xd4 ♖c3-c2 ♕d4-e4 ♖f1-c1 h7-h6
♘e7-c6 ♖f8-a8 ♗d2-b4 ♔h8-h7 h2-h3 ♕e4-f4 ♖c2-c5 ♕f4-f6 ♖c1-c3 ♕f6-h4 ♖c3-c4
♕h4-f6 ♖c5-e5 ♖a8-a4 ♖e5-e1 ♕f6-b2 ♖e1-c1 ♖a4-a8 ♖c4-c2 ♕b2-b3 ♘c6-a5
♕b3-d5 ♖c2-c5 ♕d5-d4 ♖c5-c7 ♖a8-a7 ♘a5-b7 ♕d4-b2 ♖c7-c2 ♕b2-f6 ♘b7-d6
♖a7-d7 a3-a4 ♕f6-d4 ♘d6-c4) +2.89/38 53)
score for White +2.89 depth 38 |
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| Apr-28-18 | | Cheapo by the Dozen: Bad puzzle. The first two moves are necessary to at least draw. So one just plays them, and then either does or doesn't find the clever win after that. |
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| Apr-28-18 | | Marmot PFL: No memory of seeing this before, but unconsciously I must have remembered it as the whole line starting with 23 Nxc8 seems rather easy. 23 Nxc8 Qxc3 24 Nxe7+ Kh8 25 Qc1 is simple, 23...Bxf1 24 Nxe7+ Kh8 25 Bd2, now if B moves 26 Rc8 threatens Rxf8+ and wins the queen, otherwise either 26 Rxf1 or Nc6 Not however 25 Rc5 Bb5 26 a4 Ra8 which I missed in 2012. |
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| Apr-28-18 | | Marmot PFL: After Giri-Carlsen today someone said Carlsen can remember every game he ever played (maybe) and someone else said he remembers every game he has ever seen (very skeptical). |
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Apr-28-18
 | | perfidious: Similar claims were made of Fischer's capabilities. |
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| Apr-28-18 | | WorstPlayerEver: Fairly easy, considered I didn't solve a puzzle since tuesday. No pawns involved either. |
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Apr-28-18
 | | agb2002: White has a bishop, a knight and a pawn for the bishop pair. Black threatens Bxf1, Q(R)xc3 and Qxb6.
The bishop on e7 is defenseless and the knight would capture it with check. This suggests 23.Nxc8: A) 23... Bxf1 24.Nxe7+ Kh8 25.Rc5
A.1) 25... Qa7 26.Nc6 Qa6 27.Rxf1 Qxa3 28.Rfc1 + - [R+B+N vs q]. A.2) 25... Qd8 26.Nc6 as in A.1.
A.3) 25... Qxc5 26.dxc5 Bb5 (to trap the knight) 27.Rb1 A.3.a) 27... Rb8 28.Nc6 Rb7 (28... Bxc6 29.Rxb8+ and mate next) 29.Nd4 Ba6 30.Rxb7 Bxb7 31.c6 wins. A.3.b) 27... Ba4 28.Rb4 Bd7 (28... Be8 29.Nc8 + - [N+P]) 29.c6 wins (29... Bc8 30.Nxc8 Rxc8 31.c7 and 32.Rb8). B) 23... Qxc3 24.Nxe7+ Kh8 25.Qc1 (25.Qxa6 Qxa1+ 26.Qf1 Qxa3 27.Nc6 + /- [B+N vs r]) ends up with an extra knight and pawn (25... Qxc1 26.Rxc1 and 27.Rc8). C) 23... Rxc8 24.Rxc8+ Bxc8 25.Qd3 + - [R+P vs b]. D) 23... Bxc8 24.Qc1 + - [R+P vs b]. |
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Apr-28-18
| | agb2002: I didn't remember this one and calculated worse than six years ago. Conclusion: don't get older. |
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| Apr-28-18 | | dick50: How would the game continue after
move 25...Bc4 by Black? |
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| Apr-28-18 | | ChessHigherCat: What <FSR> said. The German magazine "Der Spiegel" gave Kasparov an elaborate IQ test and decided that he only had an IQ of 135 (approx. top 1%) but his performance in remembering and reconstructing games based on positions (including the names of the players, place and name of the tournament, etc.) was absolutely phenomenal. |
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| Apr-28-18 | | AlicesKnight: I also found the line <FSR> described. In this line after 25.... Bc4, perhaps 26.Rac1 and the possibilities of Nc6 and the attack on c8 look as if, at least, White keeps the three pieces (if 26...Ba6 then 27.Rc8 looks playable leading to White a piece up); <agb2000>'s points look good. |
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| Apr-28-18 | | malt: Only got
23.N:c8 B:f1 24.Ne7 Kh8 25.Bd2 Bc4
(25...Ba6 26.Rc8 Qd8 27.R:d8 R:d8 28.Nc6 )
26.Rac1 h6 27.Nc6 |
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| Apr-28-18 | | njchess: White's knight moves are fairly straight forward, once you accept the queen sac. I only found the backward Bishop move, the key to the exchange, because I make it a point to explore those types of moves. They are simple moves, but so many people overlook them. It must have been tough for Black to resign with his queen, rook and bishop still on the board. |
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Apr-28-18
| | perfidious: <agb2002: I didn't remember this one and calculated worse than six years ago. Conclusion: don't get older.> If only. (laughs) |
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| Apr-28-18 | | daveinsatiable: Here's a link to ChessHigherCat's Spiegel Kasparov IQ article, in case anyone's interested: http://m.spiegel.de/spiegel/print/d... |
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| Apr-28-18 | | saturn2: The puzzle should start after black's move 24 |
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| Apr-28-18 | | cormier: patzer2: Black might have secured a slight advantage 16...Nd5 -0.34: 34 ply, Stockfish |
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| Apr-28-18 | | NBZ: <FSR>: I had the same line with 25. Rc5; unfortunately it turns out (courtesy of SF) Black can resist with 25. ... Bb5! 26. a4 Ra8 and surprisingly there isn't a way to win the piece anymore: for example, 27. Rb1 Qxa4 28. Rxb5? Qxb5. Very surprising. Somehow 25. ... Bb5 never even crossed my list of candidate moves because it seems so patently ridiculous, but there it is. |
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| Apr-28-18 | | WorstPlayerEver: 25... Bc4 26. Rac1 Qc7 27. Rxc4 Qxe7 28. Bb4
click for larger view |
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| Apr-28-18 | | Carlos0012358: Always tempting to take a Queen as black did here with 23.....Bxf1, but sometimes not the best idea. |
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| Apr-28-18 | | JJF: You people are obviously much better than I am, so could someone pleas explain to me how the white's last move 25.Bd21-0 wins the game? I don't see the continuation. Can't Blacks queen simply move back to the 8th rank? |
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Apr-28-18
 | | SwitchingQuylthulg: <JJF: You people are obviously much better than I am, so could someone pleas explain to me how the white's last move 25.Bd21-0 wins the game? I don't see the continuation. Can't Blacks queen simply move back to the 8th rank?> Yes, but White then captures the bishop on f1 and has a rook, a bishop, a knight and a passed a-pawn for the queen, which is enough to win. Black would be OK if he could get White's Ne7 in return, but he can't; the only ways to threaten it are with ...Qa7 and ...Qd8, which both allow Nc6 (with tempo) followed by Rxf1. |
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| Apr-28-18 | | cormier: 
click for larger viewAnalysis by Houdini 4
25...Qb6 26.Rxf1 Qxd4 27.Rfc1 h6 28.Be3 Qa4 29.Nc8 Rd8 30.h3 Rd1+ 31.Rxd1 Qxd1+ 32.Kh2 Kh7 33.g3 f5 34.Rc5 g5 35.Rc4 Kg6 36.Nb6 Qa1 37.Rc6 Kf7 38.Nc4 Kf6 39.Rc7 Qd1 40.a4 Qxa4 41.Bd4+ e5 42.Bxe5+ Ke6 43.Rc5 Qa2 44.Bd4 f4 45.g4 Qb3 46.Ne5 Qb4 47.Rc6+ Kd5 48.Bc3 Qb3
+- (2.23) Depth: 31 dpa
25...Qb6 26.Rxf1
+- (2.33 --) Depth: 32 dpa |
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| Apr-29-18 | | ChessHigherCat: <Daveinsatiable>: Thanks a lot for that link, I couldn't find it for love or money. Speaking of which, since I drew public attention to that article, I owe it to Kasparov to point out one bit of sleazy journalism typical of Der Spiegel: <Kasparow kämpft um noch viel mehr Ruhm im Spiel, um noch viel mehr Macht in der Schachwelt und, entgegen seiner Selbstdarstellung ("Geld bedeutet mir im Grunde nichts"), um noch viel mehr Dollars, Franken und Mark.> <Kasparov is fighting for still far more fame in his sport, still far more power in the chess world and, contrary to his self-image ("Money per se means nothing to me"), for far more dollars, francs and marks."> That's a very shallow and unfair judgement because Kasparov never said he hates money, what he said is that "money per se" means nothing to him: in other words, he doesn't want to amass the stuff in a Swiss bank account, he wants to use it for a good purpose. |
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Kibitzing
sac: 23.Nxc8