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| May-14-11 | | Marmot PFL: <Puzzle or a torment? First White move is bizarre and there are 15 possible replies by Black but he gets mated on the move.> I would never get that. Generally its useful to make moves that limit opponent's replies, checks or captures, but these are not usually problem solutions. |
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| May-14-11 | | cyclon: 25.Nxf7 (I even looked at Ne6, but I don't know) -Rd2 ( -Kxf7 26.Re1 Qf5 27.Qxe7+ Kg8 28.Bg4, or [26.Re1] -Qxc4 27.Qxe7+ Kg8 28.Re6 looks a bit dangerous for Black. Interesting is 25. -Rf8 26.Qh8+ Kxf7 27.Qh7+ Ke8 28.Re1 Rc7 29.Re2, but 26.Nxh6+ is dubious)) 26.Qh8+ Kxf7 27.Bd5+ e6 ( -Rxd5 28.Qh7+ is better than Qxc8) 28.Qxc8 exd5 (clearly -Rxf2? 29.Qxe6+) 29.Qd7+ Kf6 30.Qd6+ seems drawish like the other lines. Is there a winning line for White from the puzzle position? |
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| May-14-11 | | cyclon: After 25.Ne6 I pondered -f6. |
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| May-14-11 | | WhiteRook48: I don't know, I tried 25 Bd5 |
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| May-15-11 | | patzer2: For the Saturday May 14 puzzle, Akopian forced a quick draw with the demolition sham sacrifice 25. Ne6! However, he passed up a winning chance to force it to a favorable Queen, Rook and Pawn middle game with the demolition sham sacrifice 25. Nxf7!! Kxf7 26. Re1! (26. Bg4!? appears to fizzle out to a much slimmer winning chance after 26...Rf8!  ). The Akopian analysis given in <tamar>'s note for the 25. Nxf7!! Kxf7 26. Re1!  variation is worthy of study. If nothing else it's a good example of how to play a Queen, Rook and Pawn middle game. There may be improvements here, but it is clear Black will struggle to try and secure the draw and all the winning chances belong to White. |
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| May-15-11 | | psmith: <sevenseaman> I think the solution to your puzzle is 1. Kh4. 1. Kh4 (threatens Qg5#)
1... Rg8 2. Qf6#
1... Nf7 2. Qf6#
1... e5 2. Ne3#
1... e3 2. Bc2#
1... most moves 2. Qg5# |
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| May-15-11 | | sevenseaman: <psmith> The solution is the weird looking 1. Ba2. If you do not do this one possible Black response is not taken care of. (You know which one). Good shot, but try and work out all the 15 possible replies. These include movements of all three pawns, among others. |
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| May-16-11 | | wetherulerz: @psmith: Kh4 faces knight g6 check , Kg3 Nh8.....answer is Ba2 which is a waiting move forcing mate in the next step. 1) d4 Bxe6#
2) e3 Bb1#
3) e5 Ne3#
4) Rf7 Qh5#
5) Rf6 Qxf6#
6) bishop move in e8-a4 diagonal Qh5#
(4 moves)
7) Bf7 Qf6#
8) Bg6 Qf4#
9) Bh5 Qxh5#
10) Rg8 Qf6#
11) Nf7 Qf6#
12) Ng6 Qh5#
so Ba2 is a move which allows black pieces to hover in a worthless position blockiing the bishop or rook and facilitating mate.
7) |
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| May-16-11 | | psmith: Ah yes, I missed Ng6+. Late at night! Thanks, guys. At least you know I didn't use a computer... |
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| May-16-11 | | wetherulerz: 
click for larger viewwhite to play and win!! |
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| May-17-11 | | psmith: <wetherulez>
1. Nh6+ Qxh6 2. Rxf8+ Kxf8 3. Qd8#.
Yes? |
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| May-19-11 | | wetherulerz: <psmith> perfect !! :) |
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| May-22-11 | | Antiochus: <Phony Benoni>
Thank You.
I have made big mistakes in my analysis of the game Akopian vs Kasparov, 1995 .
First. I should have noticed that the white queen in the line 5 was in the air.
Second.I should have seen that the white king in g2 was out of its natural square.
I could have stopped to analyse 25 Be4 if I had seen the black queen together with black rook in d-file making a team.
... |
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| May-22-11 | | Antiochus: <Phony Benoni>
My blindness open space to a reflexion_
I have attribute my hasty moves to the blitz practice, but this a questionable reason.
I will change my method of analysis and look the underprotected pieces later.Before even combinations, I will see the position of my king.Thank You again. |
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| Jun-10-11 | | erniecohen: <Once: <erniecohen> But of course. A website that offers free chess games, instruction and analysis and they have the audacity, the nerve, the bare-faced cheek to accidentally write "Nxf7" as "Nxf7+"
Not cool. Crummy. Awful.
>
You misunderstand me. The "not cool" part is not the missing "+", but the choosing as POTD a position where the
best move is not decisive.
The whole point of POTD is that the reader is supposed to not just guess, but analyze the move to a decisive outcome (or to a surprising equalization, in draw problems). The effect of presenting POTDs where the best line is not decisive is that readers lose trust that there *is* a decisive move, and simply stop bothering to analyze thoroughly. |
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| Nov-09-24 | | Twilight of the Idol: Unexpectedly, I almost solved it.
<tamar> has posted Akopian's analysis on pg. 1. It's worth a look. No, I don't have anything constructive to add. |
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| Nov-09-24 | | mel gibson: I couldn't see any worthwhile move.
Stockfish 17 chooses a different ply:
25. Nxf7
(25. Nxf7 (1.Nxf7 Kxf7 2.Bg4 Rf8 3.Re1 Kg8 4.Be6+ Kh7 5.Re2
Qd3 6.Bxc8 Qf3+ 7.Kg1 Rxc8 8.Qxe7+ Kh8 9.Re3 Qf5 10.Re5 Qf8 11.Qh4 Re8
12.Rxe8 Qxe8 13.Qxh6+ Kg8 14.Qe3 Qa4 ) +2.41/54 311) score for White + 2.41 depth 54.
if I force SF to play the game ply it's a draw as per the actual game: 25. Ne6
fxe6 (25. .. fxe6 (1. ... fxe6 2.Qxe6+ Kh8 3.Qe5+ Kh7 4.Qxe7+
Kh8 5.Qf6+ Kg8 6.Bd5+ Rxd5 7.Qe6+ Kg7 8.Qe7+ Kg8) 0.00/73 184) score = 0.00 - it's a draw. |
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| Nov-09-24 | | FM David H. Levin: <<tamar>: Akopian obviously agonized that he had not beaten Kasparov here. In his notes after 25 Ne6? he wrote 3 columns of variations. Here is part one of that note :) > The analysis given below the diagram in <tamar>'s post seems to omit several moves. Here is what I believe to be a corrected version. 
click for larger view<After reaching this position in my calulations I decided there were few winning chances. However if this variation is continued: 35 a4 Rxc4 36 a5 Ra4 37 a6 c4 38 Kf3 c3 39 Ke2 (39 Ke3? Rc4! with a draw) 39...Ra2 40 Kd3 c2 41 Kd2 g5 (41...h5 42 f4 Kf7 43 g4 hxg4 44 hxg4 Kg7 45 g5 Kf7 46 Rc6 0r 46 Kc1 and wins) 42 f4 gxf4 43 gxf4 h5 44 Rb7 Kg6 45 Ra7! h4 46 Ra8 Kg7 47 a7 followed by the advance of the f pawn. White wins easily.> |
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| Nov-09-24 | | FM David H. Levin: <<Once>: <erniecohen> [...snip...]
Not cool. Crummy. Awful. The pits. Someone must be sacked immediately. Actually, sacking isn't good enough. They should be publicly flogged, then hung, drawn and quartered, and then when their limbs have been severed from their twitching body they should have their faces slapped about with the soggy ends.> I move that if sacking isn't good enough, the perpetrator(s) be skewered. 8^) |
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| Nov-09-24 | | FM David H. Levin: <sevenseaman>, thanks for posting that problem from 1859. As part of getting oriented, I imagined what might happen if it were Black's move. It soon became clear that any move by Black would permit mate. Hence the "key" would need only to preserve all of White's options. The above approach isn't always efficient at solving a mate-in-two problem, but here it struck gold. |
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Nov-09-24
 | | chrisowen: Math v lip jury Ne6 its ho as i do dug fab aba la au ef bed ex Ne6 beauty :) |
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Nov-09-24
| | chrisowen: Nf7 to be fair :) |
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| Nov-09-24 | | King.Arthur.Brazil: The king saw the line: 25. Ne6 fxe6 26. Qxe6+ Kf8 27. Bd5 Rxd5 28. Qxc8+ Kf7 29. cxd5 with an extra ♖. For 26... Kh8 27. Qe5+ Kh7 28. Qxe7+ Kh8 29. Qf6+ Kh7 30. Re1 Rd7 31. Be4 . In the case of 26... Kh8 27. Qe5+ Kg8 28. Bd5+ Kf8 29. Qh8# The longest way: 25. Ne6 fxe6 26. Qxe6+ Kh8 27. Qe5+ Kg8 28. Bd5+ Kh7 29. Qxe7+ Kh8 30. Qf6+ Kh7 31. Re1 Rd7 32. Be4 Qd2 33. Bxg6+ Kg8 34. Qe6+ Kh8 35. Qf6+ Kg8 36. Re4. Refusing 25... f6 26. Qe3 Kh7 27. Ng5+ hxg5 28. Qxe7+ Kh8 29. Qxf6+ Kh7 30. Re1 Rd7 31. Be4... |
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| Nov-09-24 | | King.Arthur.Brazil: In the SF line, after 25. Nxf7 Kxf7 26. Bg4 Rf8 27. Re1 Kg8... W cannot play 28. Bxc8?? Rxf2+ 29. Kg1 Rg2+ 30. Kh1 Rh2+ 31. Kg1 Qf2# . Even changing the moves order: 28. Re2 Qd3 29. Be6+ Kh7 30. Bxc8 Qf3+ 31. Kg1 Rxc8 32. Qxe7+ Kh8 (33. Re6? Rf8!) 34. Rd2 Rf8 35. Rd7+ Rf7, worst then SF position. |
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| Nov-09-24 | | vajeer: I went with 25. Nxf7 Kxf7 26. Re1 Qf5 27. Qxe7+
Kg8 28. Bg4 Qf8 29. Bxc8 Qxe7 30. Rxe7 Rxc8 31. Rxa7 and white is pawn up. |
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