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| Jul-07-20 | | Cheapo by the Dozen: Fun one.
Monday-easy, really, because the pin on White's rook means he simply doesn't have very many moves he could reasonably consider. (In particular, there's no chance to complicate things with Rg6+.) |
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Jul-07-20
 | | drollere: i missed this, as stalemate is unpleasant and it took too much counting to figure that the black K loses the pawn race by at least one move (e.g., 66. .. Ke6, 67. Rxc5 pxc5, and the K wastes a move blocking the white K from c1.) |
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| Jul-07-20 | | andrewjsacks: Humorous conclusion. |
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Jul-07-20
 | | agb2002: White is a pawn down.
Black threatens Rxg5+.
Since 66.Rxc5 bxc5 67.Kg4 (66.Kxh4 c4 wins for Black) 67... Ke5 68.Kf3 Kd4 69.Ke2 Kc3 70.Kd1 Kb2 71.Kd2 c4 wins for Black, the only option is 66.Kxh4 which unpins the rook, recovers the pawn and creates a stalemate position after 66... Rxg5. |
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| Jul-07-20 | | Walter Glattke: Hah, the white king can stop all three pawns, e.g. 67.Rxc5 bxc5 68.Kg4! c4 69.Kf3 c3 70.Ke2 c2!? perhaps 70.-Kf5 71.Kd3 c2 72.Kxc2 Kf4 73.Kd2 Kg3 74.Ke2 Kxh3 75.Kg1 I see draw all over. 67.Kxh4 Rxh4 stale mate |
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Jul-07-20
 | | FSR: Game Collection: Stalemate! |
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| Jul-07-20 | | Walter Glattke: After agb king moves black can transform the c-pawn unstoppable. The black king must reach "U1" that means b2 or d2 here to transform in c1, so 69.-Kd3 so always wins, 70.Kg4 too late or 70.Kf2 Kd2 and c-pawns runs then. |
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| Jul-07-20 | | stacase: 66.Kxh4 was the only move for White on the hope that Black would fall for it with 66...Rxg5. He did! And White does the happy Dance.
What else could Black have done instead of taking the poison Rook? Doesn't matter I'm happy. Being on the receiving end of the unexpected "STALEMATE! Ha ha ha ha!" is truly ignominious. Those little sayings say there's no such thing as a moral victory. Uh yeah well I'd say stealing your opponents victory with a stalemate qualifies: https://clipartart.com/images450_/f... |
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| Jul-07-20 | | Brenin: Another comical verdict in the game analysis from Stockfish, evaluating the line 66 Rxc5 bxc5 67 Kxh4 c4 68 Kg4 c3 69 h4 at only -1.00, whereas Black will be a Q up within two moves. White has no time to take the h pawn, and has to chase the c pawn with 67 Kf4. |
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| Jul-07-20 | | smitha1: Brilliant! |
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| Jul-07-20 | | saturn2: 66 Kxh4 yields either stalemate or a drawish ending with equal number of pawns. |
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| Jul-07-20 | | malt: 66.K:h4 the best move for white ! |
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| Jul-07-20 | | goodevans: <Brenin: Another comical verdict in the game analysis from Stockfish, evaluating the line 66 Rxc5 bxc5 67 Kxh4 c4 68 Kg4 c3 69 h4 at only -1.00, whereas Black will be a Q up within two moves. White has no time to take the h pawn, and has to chase the c pawn with 67 Kf4.> Well, yes. But in this case I don't think that the problem is with SF itself - that evaluation is a mere 7 ply - but with the way that these <computer annotated scores> get compiled. Of course SF can get it wrong even on lengthy evaluations but nevertheless it would appear that these scores get compiled automatically with no human intervention to edit out the mistakes. Maybe doing that prior to publication would be too labour intensive but there should at least be the facility to correct the mistake once it's found, as I suggested in a previous post: Nunn vs J A Sutton, 1984. |
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Jul-07-20
 | | gawain: THe position has a stalemate feeling right away with White's pawns stopped and White's king up against the edge of the board. Is there a stunning win for White? No, so take the stunning stalemate. |
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Jul-07-20
 | | Predrag3141: <Another comical verdict in the game analysis from Stockfish> The laughable evaluations seem not to get in the way of actual play, but there might be exceptions. See how Stockfish shows how Reti could have held against Capablanca in New York and beat him in the two-game mini-match:
Capablanca vs Reti, 1924 And I'm still all-in on believing Stockfish over humans in complex middlegames. |
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| Jul-07-20 | | goodevans: <Walter Glattke> In your first post I think you were a move out in your notation and that your intended line was in fact: 66.Rxc5 bxc5 67.Kg4! c4 68.Kf3 c3 69.Ke2 [...] 69.-Kf5 70.Kd3 c2 71.Kxc2 Kf4 72.Kd2 Kg3 73.Ke2 Kxh3 74.Kg1 Assuming I'm right about that then the last move has the K doing a N's move (wouldn't that be handy at times!). But that doesn't matter much because 74.Kf2 would indeed give a draw as you claim. However, in that analysis <70...c2?> achieves nothing and merely wastes a crucial tempo. Black can instead play <70...Kf4> immediately and now white's K doesn't have time to both capture the c-pawn and then get to the f-file. I'm afraid I didn't properly understand your second post so forgive me if you already addressed this there. |
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Jul-07-20
 | | chrisowen: There's no place like home no? |
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| Jul-07-20 | | TheaN: This is a rather unique take on a CG puzzle, but more on Monday terms if we look at the forcing nature: <66.Kxh4> IS White's only move; everything else throws the game either by a rook or the pawn endgame. That last requires the slightest of calculation, but White's out of the square after 66.Rxc5 bxc5 67.Kxh4 c4 -+ and after 67.Kg4 Ke5 68.Kf3 Kd4 -+ Black will simply pick up Pb5 and White has no king side counter play. <66....Rxg5 1/2> is not necessarily Black's only move, but to continue the futile endgame? White's the one with the passed pawn now. Black can screw this up easier than White. Black could 'try' 66....Rc3 but ironically even 67.Kg4?! (Rg3 =) Rxh3 68.Rf5+ Ke6 69.Rg5= is a draw a pawn down. |
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Jul-07-20
| | Predrag3141: <chrisowen: There's no place like home> slips a bit into proper English no? |
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Jul-07-20
| | chrisowen: Cover up then no? |
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| Jul-07-20 | | Brenin: <goodevans>, <Predrag3141>: You're right, I shouldn't criticise SF for these "comical verdicts" of game analysis: 7 ply is ridiculously short, especially in this sort of endgame when there are very few plausible lines of play, so the criticism should be for the decision (presumably by some algorithm) to terminate at that point. It's probably too much to expect errors of this sort to be weeded out beforehand (those running CG do a great job 99% of the time), but it would be nice to have them corrected when they are discovered. |
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| Jul-07-20 | | StevieB: What a crummy puzzle that was. I learned absolutely nothing chessgames. |
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| Jul-07-20 | | Damenlaeuferbauer: Although 40 years old, this is a very famous game here in Germany: Before 65.-,Rc5?, the Hungarian GM Andras Adorjan calculated 66.Rxc5? (otherwise white loses his rook) 66.-,bxc5 67.Kg4 (67.Kxh4,c4 68.Kg3/Kg4,c3 -+) 67.-,Ke5 68.Kf3,Kd4 69.Ke2,Kc4 70.Kd2,Kxb5 -+, which would have level the score in this candidates' quarter-final, but GM Dr Robert Huebner played 66.Kxh4 (66.-,Rxg5 is stalemate) and went after another draw to the candidates' semi-final against Adorjan's compatriot Lajos Portisch, which he also won. |
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| Jul-07-20 | | Diana Fernanda: Te player black Is not better |
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| Jul-07-20 | | zb2cr: Had to be a stalemate trap, and the most obvious is 66. Kxh4. If Black takes the Rook, White is stalemated. What about other moves for Black's 66th? 66. ... Rc4+; 67. Rg4, Rc5; 68. Rb4 looks drawish. 66. ... Rc3; 67. Rg4, Rb3; 68. Ra4, Rxb5; 69. Rxa7, Rb1 is more unbalanced but I think ends in a draw, e.g. 69. ... Rb1; 70. Kg4, b5; 71. Kf4, Ke6; 72. Rb7, Kd6; 73. h4, Kc6; 74. Rb8, Kc7; 75. Re8. Improvements for either side? |
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