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< Earlier Kibitzing · PAGE 2 OF 2 ·
Later Kibitzing> |
Apr-05-09
 | | agb2002: White has a pawn for a piece but a considerable advantage in development. The first idea is to play 22.cxd5, threatening 23.d6, but Black can block the pawn with 22... Bd6 (22... Nfxd5 23.Bxd5 Rxd5 24.Qxd5 Nxd5 25.Bxb8 Nxc3 26.c7). Therefore, 22.Rxe7: A) 22... Kxe7 23.Re3+
A.1) 23... Ne4 24.cxd5
A.1.a) 24... Rhe8 25.Rxe4+ Kf8 26.Rxe8+ Rxe8 (26... Kxe8 27.d6) 27.d6 + -. A.1.b) 24... Rxd5 25.Rxe4+ Kf6 (25... Kd8 26.Qxd5+ Nxd5 27.Bxb8) 26.Be5+ Kg5 (26... Ke7 27.Bxc7+; 26... Kxf5 27.Qg4#) 27.Qg4+ Kh6 28.Qh4#. A.1.c) 24... Kf8 25.Rxe4 followed by d6.
A.2) 23... Kf8 24.cxd5
A.2.a) 24... Nxd5 25.Bxb8 Nxe3 26.Qxd8#.
A.2.b) 24... Rxd5 25.Bxd5 Nfxd5 26.Bd6+ Kg8 27.Qxd5 Nxd5 28.Bxb8 h6 (28... Nxe3 29.c7) 29.Re8+ Kh7 30.Rxh8+ Kxh8 31.c7 + -. B) 22... d4 23.Bxc7
B.1) 23... dxc3 24.Qxd8+ Qxd8 25.Bxd8 c2 26.Re1 + -.
B.2) 23... Qc8 24.Bxd8
B.2.a) 24... Qxd8 25.c7 Qc8 26.Qxd4 Kxe7 27.Re3+ Kf8 28.Qd8+ wins. B.2.b) 24... dxc3 25.Qd6 Kg8 (25... c2 26.Re8+ Kxe8 27.Qe7#) 26.Rxf7 Kxf7 (26... h6 27.Rxg7+ Kxg7 28.Qxf6+ and mate soon) 27.Qe7+ Kg8 28.Bd5+ Nxd5 29.Qe8#. C) 22... dxc4 23.Qe2
C.1) 23... Nfe8 24.Rxe8+ Rxe8 25.Bd6+ Kg8 26.Bxc7 Rxe2 27.Bxb8 + -. C.2) 23... Rc8 24.Bd6 Kg8 25.Rxc4 looks overwhelming. D) 22... Ne4 23.Bxe4
D.1) 23... dxe4 24.Rd7 Rc8 25.Qd6+ Kg8 26.Rxc7 + -.
D.2) 23... Kxe7 24.cxd5 is similar to A.1.
E) 22... Nfe8 23.Rxc7 Nxc7 24.cxd5 followed by d6 + -. F) 22... Rc8 23.Rxc7 Rxc7 24.cxd5 followed by d6 + -. I think that's all. Let's see. |
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Apr-05-09
| | agb2002: I thought that 23.Re3+ was more effective than 23.cxd5 directly. I'll check it with Fruit 2-3-1 later. Now I want to go out play my children. |
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| Apr-05-09 | | dumbgai: Are those ratings accurate? Meier has sure made a lot of improvement since then if they are. |
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| Apr-05-09 | | parmetd: pretty easy |
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| Apr-05-09 | | johnlspouge: Sunday (Very Difficult)
E Tomashevsky vs G Meier, 2004 (22.?) White to play and win.
Material: B+P for 2N. The Black Kf8 is caught in the center, disconnecting the Rs, with 2 legal moves, both light squares on the back rank. The White Bf4 pins Nc7 to Qb8. The White Re1 has an open file and attacks Be7, which Kf8 defends, suggesting a decoy. Beyond, Re1 takes the safety of e8 away from Kf8. The White Pc4, Bg2, and Qd1 attack Pd5, while Rc3 is already lifted, ready to reload Re1 on the e-file. The White Kg1 is subject to …Bc5+, but is otherwise secure. Candidates (22.): Rxe7, Qe2
22.Rxe7 Kxe7 [else, down a P in a bad position]
Candidates (23.): Qe1+, Re3+, cxd5
The candidate for Move 23 is harder than for Move 22. White’s tactical objective is to support of the White Pc4 after it arrives on the d-file. The Qd1 is already in position to support the Pc4. Because Be7 has been destroyed, but replaced by Ke7, which helps control the critical stop square d6, I chose 23.Re3+ from among the candidates. 23.Re3+
(1) 23…Ne4 24.cxd5 Rxd5 25.Rxe4+
(1.1) 25…Kf8 [or Ke8 or Kd8] 26.Qxd5 Nxd5 27.Bxb8
White has 2B+P for N.
(1.2) 25…Kf6 26.Qa1+ Kxf5 27.Re5+ and mate soon.
The Black position is untenable.
(2) 23…Kf8 24.cxd5 (threatening 25.d6 26.d7 27.Qd6+ 28.c7) If Black captures:
24…Nfxd5 25.Bxd5 Rxd5 26.Qxd5 Nxd5 27.Bxb8
White has 2B+P for N.
No defense appears feasible.
<agb2002> and <RandomVisitor>: Thanks for your comments. I am traveling and I do not have access to a chess engine. |
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| Apr-05-09 | | DarthStapler: I at least considered the first move |
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| Apr-05-09 | | WhiteRook48: I guessed 22. Rxe7 because it looks like what a maniac would play |
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| Apr-05-09 | | CHESSTTCAMPS: White has an advanced extra pawn, a strong bishop pair, and a big mobility advantage as compensation for his piece deficit. Special features of the position include the pinned knight on c7 and the difficulty black has in developing the Rh8 with the uncastled king in the way. With black threatening both Bxb4 and Bd6, neutralizing the pin, I believe white's principal candidate is clear: 22.Rxe7! Kxe7
At this point I looked at 23.Qe2+ Kf8 24.Qe5 but I wasn't satisfied that white had enough. Having gotten a late start on this, I'm not going to attempt a very detailed analysis, but I now believe the logical way to play this is 23.Re3+ Kf8 (23...Ne4? 24.cxd5) 24.cxd5
Now the pawn roller looks dominant with the support of the powerful bishop pair, especially with the R on h8 trapped out of play. Play might continue: 24...Nfxd5 25.Rd3 Ke7 26.Qe1+! Kf8 27.Bxd5 Qc8 28.Qe5 Nxd5 29.Rxd5 Rxd5 30.Qxd5 h5 31.a4 and white has a strong bind if not a forced win involving the promotion of the c-pawn. That's all I have - time to see what transpired. |
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Apr-06-09
 | | patzer2: For the Sunday April 5, 2009 puzzle solution, the demolition 22. Rxe7! is decisive. |
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| Feb-14-21 | | Walter Glattke: 22.Rxe7 Kxe7 23.cxd5 Rxd5 24.Re3+ Kf8 25.Bxd5 Nxd5 26.Bd6+ Kg8 27.Bxc7 Nxc7 28.Qd7 g6 29.Re7 Nb5 30.Re8+ or 27.-Qxc7 28.Qxd5 g6 29.Qd7 Qxd7 30.cxd7 Kg7 31.Re8 so 23.-Rxd5 was not enough |
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Feb-14-21
 | | An Englishman: Good Evening: More than a little surprised to have found this one including the unplayed main line--although it seems unlikely that even Tomashevsky could have foreseen every variation. 6/6 with one known for the week. |
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| Feb-14-21 | | Steve.Patzer: Why won’t this site allow me to use the engine for analysis. There must be a bug because it says I already have 4 sessions open, but I delete them immediately. |
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| Feb-14-21 | | mel gibson: I saw the first ply straight away -
White could gain a lot of activity for the sacrifice of the Rook.Stockfish 12 says:
22. Rxe7
(22. Rxe7 (♖e1xe7 ♔f8xe7 ♖c3-e3+ ♔e7-f8 c4xd5
b6-b5 d5-d6 ♘c7-e8 ♖e3-d3 h7-h5 ♔g1-f1 ♕b8-b6 ♗f4-e3 ♕b6xe3 ♖d3xe3 ♖d8xd6
♕d1-c2 ♔f8-g8 ♖e3-e7 ♔g8-h7 ♖e7xf7 ♖d6-d4 ♕c2-c3 ♖d4-c4 ♕c3-d2 ♖h8-g8 h2-h3
♔h7-h8 ♗g2-f3 ♔h8-h7 g3-g4 ♔h7-h8 ♖f7-e7 ♖g8-f8 g4-g5 ♘f6-g8 ♖e7-e1 ♖f8xf5
♔f1-g2 ♖f5-f8 ♗f3xh5 ♘g8-f6 g5xf6 ♘e8xf6) +6.36/36 91) score for White +6.36 depth 36. |
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| Feb-14-21 | | RandomVisitor: Notice that 21...d5?! sets up the puzzle as a win for white. Things are different if black plays 21...Nfe8, when play might continue: 
click for larger view Stockfish_21021123_x64_modern:
<53/86 23:13 +0.20 22.h4 h6 23.Rd3> Qc8 24.Kh2 Bf6 25.c5 bxc5 26.bxc5 d5 27.Bxd5 Qxf5 28.Rf1 Rxd5 29.Bd6+ Nxd6 30.Rxf5 Nxf5 31.Rxd5 Nxd5 32.Qxd5 g6 |
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| Feb-14-21 | | Brenin: It's not hard to see 22 Rxe7 Kxe7 23 cxd5, and that Black will have to expend significant material stopping the c-and d-pawns, but as for checking all the variations, life is too short and my brain cells too few. OTB I'd play it and rely on instinct that it works. |
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| Feb-14-21 | | goodevans: I don't remember this puzzle from 12 years ago but I got exactly as far as I did then, getting the first move but being uncertain whether 23.Re3+ or 23.cxd5 was the best follow up. I once again plumped for <23.Re3+> as "shoving the K back to f8" seems instinctively best. |
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| Feb-14-21 | | Refused: The first move is pretty straightforward.
22.Rxe7 Kxe7
if cxd5 works, then black is in deep trouble, let's try the direct 23.cxd5 first and examine checks on the e-files later if things don't work out.23.cxd5 Nfxd5 we reached the criticial position imho 24.Qe1+ Kf8 25.Bxd5 Rxd5 26.Re3 Re8 27.Re7 Re1! (the toughest defense imho) 28.Qxe1 Kxe7 29.Qd6+ Ke8 30.Qd7+ Kf8 31.Bxc7 Qa8 32.Be5 (cleanest imho) and now the c-pawn's gonna pwn. Ok, if Black can't recapture on d5 this looks resignable. Almost any other move and 24.d6 looks like curtains. the pawn tandem of d6 and c6 is just too much. |
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| Feb-14-21 | | morfishine: <22.Rxe7> is the only move that presents itself at this point in the game, so it doesn't seem that insane but nice finish |
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Feb-14-21
 | | chrisowen: Hup Rxe7 gamble abridge key i lag ahh key ratchet hup rifty dascha cad as lad barbeque quagmire vim rim rifty ok one low be key i now tonks neptune huppy its lazers keys rug bag bounce demarcate key i within plush key let Nfe8 hub huh ace me hog pd5 flick key i efface aorta koinus ajars key Ke7 etcetera aorta jar cxd5 blablah avows lab flick in finish accommodate key i add ghost aeschylus oh ebb eoyore it was hint Rxe7 edict? |
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| Feb-14-21 | | offramp: A sudden ending to WYb18. |
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Feb-14-21
| | chrisowen: Seshion no? |
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Feb-14-21
| | agb2002: Level 1: 37.?
Smyslov vs Lilienthal, 1941
click for larger view |
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| Feb-14-21 | | Ariogermano: 22. cxd5 Ncxd5 23. Bxd5 Nxd5 24. c7 Nxc3 25. cxd8=Q+ Bxd8 26. Bd6+ Kg8 |
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| Feb-14-21 | | cormier: if 8...00
Depth 28 +0.68 9.d4 cxd4 10.Nxd4 Qc7 11.Ndb5 Qc6 12.Be3 a6 13.Nd4 Qc7 14.Rc1 Nbd7 15.f4 Rfe8 16.f5 Bd8 17.fxe6 |
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