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| Mar-06-17 | | RandomVisitor: 13.Bxh6 is a rude awakening, you might say:
click for larger viewKomodo-10.1-64bit:
<+1.94/35 13...Ncxe5 14.Bh7+ Kf8 15.Bg5> f6 16.Bc1 Re7 17.f4 Nf7 18.Nd2 f5 19.Nf3 Nf6 20.Qh4 Nh6 21.Bg6 Bd7 22.b3 Be8 23.Ba3 Kg8 24.Bxe7 Qxe7 25.Bxe8 Rxe8 26.Rac1 Nf7 27.c4 dxc4 28.Rxc4 Qd7 29.Rec1 Nd5 30.Ng5 Nxg5 31.fxg5 b5 32.Rc5 Ne7 33.Qh5 Nd5 34.g6 Nf6 35.Qh4 Qd2 36.Rc7 Qxa2 37.Qf2 Qxf2+ 38.Kxf2 Ne4+ 39.Ke3 Rd8 40.Rxa7 |
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Jul-26-18
 | | perfidious: This GOTD was indeed rude treatment for Black, and anything but a party for her. |
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Aug-18-20
 | | FSR: 25.Ng5! crushes, for example 25...Qg7 26.Nh7+ Kg8 27.Nf6+ Kh8 28.Qe8+ (or 28.Qh5+) and mate next; or 25...Qc7 26.e6. |
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Aug-18-20
| | FSR: I agree with <CaptainEvans> that 6...e5! was correct. 8...Qc7 or 9...Qc7 deserved consideration. After 10...Bxe5?, Black was already lost. After 24.Qxg6+, she should have tried 24...Qg7, begging for a lost ending. |
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Aug-18-20
 | | gawain: 25 Ng5 threatens mate on the move and leads to a fun king hunt. |
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Aug-18-20
| | gawain: Sorry, 25 Ng5 does not threaten mate--but the threat of Nh7+ is devastating. |
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| Aug-18-20 | | saturn2: I looked at the game line 25 Ng5 with another follow up 25...Qd7 26. Nh7+ Ke7 27. Qf6+ Ke8 28. Qf8 mate or .25..Qg7 26. Nh7+ Kg8 27. Nf6+ Kf8 (or Kh8) 28. Qe8 or 25...Qe8 26. Nh7+ Ke7 27. Qf6+ Kd7 28. Qd6 mate
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| Aug-18-20 | | Walter Glattke: White is 2 pawns ahead and can win with Re1/Rd1/g3/Qf6+ but crush or knack the black position is 25.Ng5 only. 25.-Bd7 26.Nh7+ queen lose or 25.-Qg7 26.Nh7+ Kg8 27.Nf6+ Kf8 28.Qe8# They played 25.-Qd7 26.Nh7+ Ke7 27.Qf6+ Ke8 28.Qe8# possible was 25.-Qc7 26.Nh7+ Ke7 27.Qf6+ Kd7 28.Nf8# So, black must play 25.-Bd7 26.Nh7+ Qxh7 27.Qxh7 or black resigns here. |
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| Aug-18-20 | | Nullifidian: 25. ♘g5 threatens ♘h7+, so black can either lose the queen or save the queen and lose the game. |
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| Aug-18-20 | | agb2002: White has a knight and two pawns for a bishop.
After 25.Ng5 Black will lose more material:
A) 25... Qxe5 26.Qf7#.
B) 25... Qg7 26.Nh7+ Qxh7 (26... Kg8 27.Nf6+ Kh8 -27... Kf8 28.Qe8#- 28.Qh5+ and mate next) 27.Qxh7, etc. C) 25... Qd7 26.Nh7+ Qxh7 (26... Ke7 27.Qf6+ Ke8 28.Qf8#) 27.Qxh7, etc. D) 25... Qc7 25.Nh7+ Ke7 26.Qg7+ Kd8 27.Qf8+ Kd7 28.Qxf5+, followed by Qf6+/Qh5+ and Ng5, wins a third pawn. |
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Aug-18-20
 | | ajk68: After 25...Qc7 the win is long in coming. There is a mate in 21 according to the computer. 1) mate-in-21 (28 ply) 26.Rd1 Qd7 27.Nh7+ Qxh7 28.Qxh7 Be6 29.Qh6+ Ke7 30.Qg7+ Ke8 31.Qh8+ Ke7 32.Qxa8 Bf7 33.Qxa7 Kf8 34.Qb8+ Kg7 35.Qxb7 Kf8 36.Qb8+ Kg7 37.Qd8 Kh7 38.Qf8 Kg6 39.Qe7 Be8 40.Qxe8+ Kg5 41.Qg8+ Kh6 42.Rd4 f4 43.Rxd5 Kh5 44.Qh7+ Kg5 45.e6+ Kg4 46.Qh3# |
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| Aug-18-20 | | Brenin: As is often the case, Q and N complement each other to form a devastating attacking force. After 25 Ng5, the line 25 ... Qg7 26 Nh7+ Kg8 27 Nf6+ Kf8 28 Qe8 mate or 27 ... Kh8 28 Qh4+ is particularly pretty. After 12 ... Re8? White's attack plays itself; 12... f5 was required. |
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| Aug-18-20 | | mel gibson: Very easy.
Stockfish 11 delays the checkmate by
sacrificing the Queen.
Mate in 14
25. Ng5
(25.
Ng5 (♘f3-g5 f5-f4 ♘g5-h7+ ♕e7xh7 ♕g6xh7 ♗c8-e6 c3-c4 ♗e6-g8 ♕h7-f5+ ♔f8-e8
c4xd5 ♗g8xd5 ♖a1-c1 ♗d5-c6 ♖c1-d1 ♖a8-c8 ♕f5xc8+ ♔e8-f7 ♕c8-f5+ ♔f7-g7
♕f5-f6+ ♔g7-g8 ♖d1-d8+ ♗c6-e8 ♖d8xe8+ ♔g8-h7 ♖e8-h8+) +M14/74 187) |
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| Aug-18-20 | | Whitehat1963: Couldn’t find my way through this one, even though I’ve seen it before. |
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| Aug-18-20 | | smitha1: This puzzle is startling to me because a Queen and Knight overcome a King and Queen. I always understood that a King was stronger than a Knight, and would not have been on the lookout for a mating attack in the diagram. Moreover, the Knight is on an open part of the board, so it is not supposed to be as good as a bishop. Surprise! After some memorable tactics and comical falling over one another by the Black King and Queen, the Knight comes out victorious. |
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| Aug-18-20 | | TheaN: I feel like some answers here are definitely lacking Black's most sturdy answer (though it might objectively not be best). After <25.Ng5> White 'simply' prepares Nh7+ which, in the situation at hand, forces Qxh7 with an easy win. Black can't utilize her undeveloped pieces to help with this. The only moves that prevent the uneven trade are queen moves. Black has to keep tabs on f7 because of Qf7# and will have to do so on squares where the queen's not taken straight away. That leaves Black with four options. 25....Qd7 (which surprisingly was played) leads to a mating net 26.Nh7+ Ke7? (Qxh7 +-) 27.Qf6+ Ke8 28.Qf8#. 25....Qe8 leads to a similar net: 26.Nh7+ Ke7? (Qxh7 +-) 27.Qf6+ Kd7 28.Qd6#. 25....Qg7 is not much better: 26.Nh7+ Kg8? (Ke7? 27.Qxg7+ +-; Qxh7 +-) 27.Nf6+ Kh8 (Kf8 28.Qe8#) 28.Qe8+ with 29.QxQ#. This leaves <25....Qc7!>. Surprisingly, removing the queen from the stage completely seems to present Black with the most options. <26.Nh7+ Ke7 (Qxh7 +-) 27.Qf6+>
click for larger view
Key here is that after 27....Kd7 28.e6+! is completely crushing because Kd8/Ke8 29.Qf8#, but the king can't flee over the sixth rank either due to promotion 28....Kc6 29.e7+ with e8Q +-. So <27....Ke8>, but now <28.Qf8+ Kd7 29.e6+!> White follows the same plan forced. Black's will have to settle with <29....Kc6 (Kxe6 30.Re1+ Kd7 31.Re7+ +-) 30.e7 Be6 31.Qxa8 Qxe7 32.Re1 +-> and Black's paralyzed a rook down. Maybe White has better after 25....Qc7, but this seemed to be the most forcing to me and gives Black little options. |
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| Aug-18-20 | | TheaN: <smitha1: (...) I always understood that a King was stronger than a Knight>
In subjective endgame values, yes. Roughly 2.8 versus '4' without taking position into account. The problem with that assessment is that material imbalance regarding kings can't exist. Objectively and in any other portion of the game, the king's not quantified, simply because he can't be lost. As such, in a tactical combination, a knight infinitely surpasses the king's strength. |
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| Aug-18-20 | | TheaN: To add to the previous, piece values do depend entirely on their strength on the board at hand. Q+N combine very well against a good assorti of enemy pieces, because the Knight grants the Queen the only characteristic she doesn't have, leaping. However, put a Q+N vs eight rooks and they aren't going to win. Right?
click for larger view |
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Aug-18-20
 | | chrisowen: I did it! |
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Aug-18-20
| | chrisowen: U menace it was open back c g5? |
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Aug-18-20
| | NM JRousselle: Black missed 12... f5. This might have equalized. |
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| Aug-18-20 | | 5hrsolver: 25. Ng5 I struggled with the reply 25...Qc7. Apparently the best reply is 26. Rd1 bringing out the rook instead of checking with knight or queen. It's hard for black to develop his pieces and the attack is so much stronger. |
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| Aug-18-20 | | mel gibson: <Aug-18-20 TheaN: To add to the previous, piece values do depend entirely on their strength on the board at hand. Q+N combine very well against a good assorti of enemy pieces, because the Knight grants the Queen the only characteristic she doesn't have, leaping. However, put a Q+N vs eight rooks and they aren't going to win. Right? > Very funny,
the Knight checkmates by jumping to g5. |
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Aug-18-20
| | perfidious: One of the all-time greats proves the superiority of Q+B when, conversely, the knight lacks strong squares and the bishop displays its latent powers to the full in the following game: Tylor vs Lasker, 1936. |
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| Aug-18-20 | | bahduggi: Whereas the fairly obvious 25.Ng5 does crush, W must exercise extreme creativity to find a move that isn't winning? |
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sac: 13.Bxh6