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| Sep-30-15 | | thegoodanarchist: One way to stop immediate mate appears to be 24...Rdd8, but White still has all sorts of fun moves like 25.Re7+, leaving Black in a hopeless position. |
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| Sep-30-15 | | Fish55: I'm surprised that an IM played 24...Rxa1. |
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Sep-30-15
 | | perfidious: Black is dead lost anyway--likely decided he should give his opponent a pretty finish. |
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| Sep-30-15 | | dfcx: black wants to trade the knight for bishop, white wins instead with
24.Bf4! R1d8 (Rxa1? 25.Re8#) 25.Re7+ (better than Rxa2) Kd8/Ka8 26.cxb7# |
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| Sep-30-15 | | patzer2: For today's Wednesday puzzle solution, the threat is indeed stronger than the execution with <24. Bf4!>, threatening a decisive double check and mate. Black's made it easy with <23...Nxa2?>, allowing 24. Bf4! Instead, Black can put up more resistance with 23...Nd5 when White needs to find the brilliant 24. Re7! (diagram below), 
click for larger viewwhen play might continue 24...b6 25. Bf4+ Ka8 26. Rxd1 Nxe7 27. c7 Nc6 28. Rd7 f6 29. Bxh6 Kb7 30. Rf7 Rc8 31. g4 c4 32. Rxf6 Kxc7 33. Kg3 Kd7 34. Bd2 Nd4 35. Be3 Nc2 36. Bf4 c3 37. g5 Ke7 38. Bd6+ Kd7 39. g6 Nd4 40. Ba3  (+1.89 @ 21 depth, Deep Fritz 14). Earlier, instead of <20...Rhg8?! 21. Qxe5  > Fritz finds the surprise defensive resource 20...Nd5! 21. cxb6 f6 = (-0.23 @ 24 depth, Deep Fritz 14). |
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| Sep-30-15 | | agb2002: White has a bishop for a knight and a pawn.
The black pieces are defenseless and the position of the black king allows a mate in two threat. Therefore, 24.Bf4: A) 24... Rxa1 (or 24... Nc3) 25.Re8#.
B) 24... Rdd8 25.Re7+ Rd6 (25... Ka(c)8 26.cxb7#) 26.Bxd6+ Kc8 27.cxb7+ Kd8 28.b8=Q(R)#. C) 24... Ka(c)8 25.cxb7+ Kxb7 26.Rxd1 wins.
D) 24... Rd6 25.Rd5 wins. |
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| Sep-30-15 | | morfishine: <24.Bf4> and the simultaneous threats are too much for Black |
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| Sep-30-15 | | saturn2: Yesterday it was a discovered check, today it is the threat of a discovered check established by Bf4. The doublethreat is mate in one and taking the rock. 24..Rdd8 or Rgd8 prevent both threats. But simply 25 RxNa2 wins or white can avoid loosing a pawn by 25 Rxc5+ and only 26 RxNa2 then. |
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| Sep-30-15 | | stacase: Threatening mate is always a good move, and a great move if your opponent doesn't see it. |
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| Sep-30-15 | | Cybe: thegoodanarchist: One way to stop immediate mate appears to be 24...Rdd8 What for? - It's mate in 4. 24... Kc7 seems to be "the best of the worst" move. |
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| Sep-30-15 | | CHESSTTCAMPS: Black has knight plus pawn for a bishop, pins white's bishop, and threatens 24... Nxc1. White could play 24.Rxa2 Rxc1 25.Rxc5 equalizing in material, but can do much better: 24.Bf4! sets up a winning discovered check
A.24... Rxa1 (or 24... Nc3, 24... Rd4 and several other moves) 25.Re8# B.24... R1d8 25.Re7+ Rd6 (Ka8/c8 26.cxb7#) 26.Bxd6+ Kc8 27.cxb7+ Kd8 28.Rae1 forces mate. C.24... bxc6 25.Re7+ followed by Rxd1 wins a rook and keeps the black king on back rank. |
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| Sep-30-15 | | zb2cr: 24. ♗f4! has a threat of mate by ♖e8# due to the double check, and a simple threat on the ♖ at d1. It seems that Black can solve both problems with 24. ... ♖dd8, but 25. ♖e7+ forces material loss, because of 25. ... ♔c8; 26. cxb7#! (This works against 25. ... ♔a8 too). So Black is left with 25. ... ♖d6; 26. ♗xd6+, ♔c8; 27. ♖xa2. Now White has a huge edge ♖+♗ and mate can't be far away. |
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| Sep-30-15 | | 36ramtrap: Simply 27 cxb7 mates |
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| Sep-30-15 | | VanPoolPlayer: @fish 55
maybe Bernink thought the 8th rank was covered and only looked at the rook moving to the 7th rank?
If black K moves to the corner on the revealed check, then it would be mate with c6xb7 |
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| Sep-30-15 | | Rob Morrison: I like the element of Divine Justice in this game. Black grabs material at every possible opportunity, right up to Nxa2 and Rxa1. Like a hedge fund that grasps at every penny of gains right up until it blows itself up. |
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| Sep-30-15 | | jith1207: What do you call when you fall into a pin yourself and get lost or checkmated because of that? Reverse-pin?
Back-p(a)in?
Pinterest?
A Trash Pin?
A Hairpin Dead End? |
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| Sep-30-15 | | BOSTER: Most play after 24. Bf4 R1d8.
But 24...Rd6 "playable" too. |
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| Sep-30-15 | | kevin86: The bishop move wins and black jumps into a brilliant double-check-mate, to put himself out of his misery. |
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Sep-30-15
 | | gawain: Happy to be corrected. Black does have a temporary defense against the double check/mate threat, but 24...Rdd8 25 Re7+! only puts off the end for a couple of moves. The mate delivered by pawn after 25...K moves (a8 or c8) 26 cxb7# is a very pleasing variant. 25 ... Rd6 26 Bxd6+ Kc8 27 cxb7+ Kd8 28 b8(Q)Kd7 29 Qc7# is also nice. |
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| Sep-30-15 | | starry2013: I saw the mate in 2 but should have persisted to see the mate in 3 as black can clearly delay by moving the rook back up. Re7 does seem a natural enough move to continue the pressure so hopefully I would have played that, though there are other attractive moves, if none anywhere near as clinical. The pawn move might be pretty obvious once Re7 had been played. Though even Rxb7 will signal the approaching end. White's king very safe so not much to worry about. |
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| Sep-30-15 | | Lighthorse: Yes! I got it. 3 for 3 this week. I always remember Nimzowitsch's quote, which helped me today: "Even a lazy king flees a double check!" |
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| Sep-30-15 | | starry2013: In this case though the rook moves back before the king flees. |
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| Sep-30-15 | | Cheapo by the Dozen: I quickly found a more complex win, stopped looking, and didn't see the easier one. ---
The obvious move is 24 Re7, threatening Bf4+, which would win White's choice of R or N. Running with the king doesn't help Black, as cb+ forces Black either to play ... Kb1 or else allow White to queen the pawn. So Black's only tries are: 24 ... Nxc1
24 ... Rxc1
24 ... Nc3
In any of these scenarios, White will get a chance to play Rxb7+, followed by R(a) x a7, followed by Ra8# |
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| Sep-30-15 | | Mating Net: Knowledge of this game helped me solve this position. Bronstein vs F Zita, 1946 The critical pattern is quite similar. |
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Sep-30-15
 | | Bubo bubo: White charges a powerful cannon with 24.Bf4!, threatening a deadly double-check as well as the undefended Rd1. Black will lose that rook, since none of the moves which might cope with both threats works: A) 24...Rdd8 25.Re7+ Rd6 (or K~ 26.cxb7#) 26.Bxd6+ Kc8 27.cxb7+ Kd8 28.b8Q# B) 24...Rhd8 25.Re7+ R1d6 (or 25...K~ 26.cxb7#; 25...R8d6 26.Rxd1, winning both rooks) 26.Rxa2, and since Black is unable to lift the pin (Ka8/c8 fails to cxb7+), White will subsequently win the Rd6, too. C) 24...Rd6 25.Re7 threatens mate in three as in A), so Black hasn't time to save even his knight: 25...Rhd8 26.Rxa2 leads to B), while 25...Kc8 26.cxb7+ Kd8 27.Bxd6 yields an unstoppable mate and 25...bxc6 26.Bxd6+ K~ 27.Rxa2 simply loses rook and knight. Very nice! |
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Kibitzing
sac: 24.Bf4