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| Oct-27-10 | | Whitehat1963: I got this right away, but I must admit I didn't consider the possibility of 24...Bg6. Still, this one was a bit easy for a Wednesday. I usually struggle to find Wednesday puzzle solutions. This one jumped out at me. |
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| Oct-27-10 | | gofer: 24 Nh6 ...
25 ... gxh6 26 Bxh6#
25 ... Bg8 26 Qxg8+ Ke7 27 Qf7#
25 ... Ne5 26 dxe5 Rxd1+ 27 Rxd1 mating
25 ... Bg6
26 Qg8+ Ke7
27 Qxg7+ Ke6 (Bf7 Qxf7# or Ke8 Qxg6+ with mate to follow)
28 Qxg6 winning the rook on f5 as defending it allows Qf7# Time to check... |
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| Oct-27-10 | | whiteshark: Humpday! Got it in a blink of an eye. |
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| Oct-27-10 | | bengalcat47: The source of Black's trouble is his badly placed Rook at f5 (or, in older terminology, his King Rook). |
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| Oct-27-10 | | daveinsatiable: @whiteshark: what is humpday? Sounds scary. |
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| Oct-27-10 | | imreker: 1) Queen presence at e6 suggest mating attack.
2) Knight-and-Bishop pressure on both f6 and h6 with possible (correct me if I'm wrong) Boden mate pattern suggest a piece sacrifice.
3) Nxf6 doesn't work, since there is a Rook at f5.
4) So the only chance left is Nh6; immune piece and irresistible threat.That's how I got this in like 12 seconds. |
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| Oct-27-10 | | azax: Wednesday, White to move. "Medium/Easy."
Whether because of my lack of sleep or harder puzzles this week, I'm finding this week's puzzles very difficult. Material: White is down a pawn.
Nothing obvious leaps out, so let's look at Silman's rules of combination. 1. Hanging pieces
The Bh7.
2. Underdefended pieces
The Nd7 and Rf5 could use more support.
3. Exposed King
Black's King must be longing for 3 pawns to hide behind right now. It happens to be stalemated as well. We should also note that the Black queen is short on squares, but with only one piece on her side of the board, my attempts to court her failed miserably. This position looks ideal for a Boden's mate, but as White doesn't have two bishops, I dismissed the idea. Suddenly, 24. Nh6! jumped out to me. This has many threats, with the obvious Qf7# and Nxf5, checkmate and winning a piece (respectively). In addition, after 24. ...gxh6, 25. Bxh6 is mate -- a Boden's mate! Black has no defense that hangs on to enough material. This puzzle was very educational for me. Never again will I forget that a queen is a bishop... |
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| Oct-27-10 | | snail25: White to move.
Hmmm......
The king is under attack, but the Q will need help to finish the job. There are no other pieces close to any of white's other pieces that could be captured without loss. A possible sac? H6 looks weak, and Nh6 creates a mate threat. Mate on f7 or capture the N and face Bh6#. Nice Wednesday puzzle. |
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| Oct-27-10 | | zb2cr: Found this one quickly. |
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| Oct-27-10 | | CHESSTTCAMPS: <<TheBish> <This took me about two minutes to see, while watching the Nova special on the Chilean miners rescue.>
I watched the Nova special too. Still gives me goose bumps to see the miners get rescued.> Yes, it was a little like an earthbound version of the Apollo 13 story, a heroic effort against long odds. |
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| Oct-27-10 | | desiobu: 24. Nh6 is a killer. |
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| Oct-27-10 | | David2009: D Mueller vs A Van Weersel, 2001 White 24? 24 Rf1 threatens to win a piece. If 24...Rd4 25 Nxf6 (seeing 25...Nxf6 26 Rxf6+ gxf6 27 Bh6#). If 24...Rxf1+ 25 Rf1 (threatening Nf6) expecting 25...Bg1 (not
possible immediately because the Rf5 hangs). White has several winning tries which can be analysed when we reach the position: for example 26 Qd6+ (when Kf7 looks solid)
or Qxe4 threatening Qxh4 which renews presure on f6. At the moment I go for Qxe4 but let's have a think if and when the position crops up.
Time to check:
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I missed it! 24 Nh6! wins outright in the puzzle position (below):
click for larger view (D Mueller vs A Van Weersel, 2001 White to play 24?) A big fat zero for my efforts, because 24 Rf1 Rxf1+ 25 Rxf1 Bg8 leads nowhere: 26 Qxe4 leads to a sterile endgame a Pawn up after 26...Re8 27.Qg6 Bf7 28.Qh7 Bg8 29.Qxh4 Qd3 30.Rf3 Qh7 31.Qxh7 Bxh7, and 26 Qd6+ Ke8 (a surprise) 27 Bh6?! gxh6 28 Rxf6 fails to dynamite the fortress because of 28...Qc4! leaving White with nothing much to show for his piece. These moves are as played by Crafty End Game Trainer, link http://www.chessvideos.tv/endgame-t... In contrast, after 26 Nh6! the EGT has nothing better that 26...Qc4 27 Qxc4 Rd4. A Queen down, the EGT has successfully staved off mate - but for how long? |
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| Oct-27-10 | | awfulhangover: 3/3 this week, but got this easy one much faster than mondays f4! |
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| Oct-27-10 | | Redsoul: <M.Hassan>, it was a wonderful analysis, but the 27 isn't Qxf6?? (...Rxf6 or ...Nxf6) is Qxg6. |
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| Oct-27-10 | | kevin86: Simple,but I missed it. The only logical way to get out of mate is 24...gxh6 which is punished by 25 ♗xh6# Ouch! |
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| Oct-27-10 | | Patriot: It didn't take long to see 24.Nh6 but I spent several minutes looking at possible defenses and this is where myself and some other kibitzer's failed. I saw that black could try 24...gxh6, 24...Bg8, or 24...Ne5. I also looked at the silly 24...Rf1+ or 24...Qf1+. But I didn't see the viable option, 24...Bg6. This to me, is a "glitch" in thought process. Other's who missed Bg8, Ne5, or Bg6 may want to take note of this. Of course, missing the obvious possibility 24...gxh6 is not good either, even though 25.Bxh6 is mate. 24...Qc4--an alternative "defense" (if that's what you want to call it) which would be viable if black was ahead in enough material to make a difference (which is why knowing material imbalances is important before trying to solve a puzzle). For example if black was up a rook then 24...Qc4 may put the game closer to even (25.Qxc4 gxh6). Here it stops immediate mate but loses instantly. My suggestion is that all defenses should be considered, no matter how silly they appear. If they are completely ridiculous then they can be discarded quickly and no more time is needed. This is a good habit to get into because we've all seen puzzles where we missed a "silly" move that on the surface looks terrible but turns out to be a game-saver or killer move. To those who took a completely different path and missed Nh6, you may want to correct your thought process to start looking for mate threats first! |
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| Oct-27-10 | | rapidcitychess: I missed the Boden's mate.
Great. :( |
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| Oct-27-10 | | jimmjames: This could have been tusday puzzle (and tusday puzzle could have been monday!) I inmedtiatly got it. |
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| Oct-27-10 | | wals: Analysis Rybka 4 x 64
depth 16 : 4 min :
Black blunder
(+1.78):19...Bh7. Best, b6, =0.02, or Kf8, =0.18.
depth 17 : 5 min :
Black blunder
(+4.25):20...Qd3. Best, Kf8, +1.78.
depth 17 : 4 min :
Black blunder
(+6.58):21...Rxf5.Best, Bxf5, +4.25.
depth 17 : 3 min :
Black blunder
(+11.79):22...Qa6. Best, Rd5, +6.58.
With no hope Black resigned move 24. |
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Oct-27-10
 | | fm avari viraf: Well, to-day's puzzle seems to me & many a Monday one since the kenspeckle Nh6 knocks the Black King. |
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| Oct-27-10 | | Nullifidian: Saw this one in about half a minute. At first I considered ♗h6 as leading to a win of the exchange and an extra pawn (24. ♗h6 ♙e3 25. ♗xg7+ ♔xg7 26. ♕e7+ ♔g6 27. ♕xd8 and that would have been good enough to provoke a resignation, but then I saw that 24. ♘h6 wins outright. The only way I can see Black hanging on is by giving away the queen with 24... ♕c4 and then closing up the diagonal with 25... ♖d5. I also considered 24... ♗g6 as a response, but that loses a pawn, that very bishop, and then (because ♖f8 is needed to prevent mate on f7) the f5 rook. Either way, Black cannot recover from the loss off material. |
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| Oct-27-10 | | goldenbear: Of course, I saw Nh6 immediately, but I spent couple of minutes trying to figure out what opening this could have possibly come from. I was stupified, unable to come up with a reasonable guess. And sure enough, I don't think I've ever seen the "Blackburne Attack" before, which I assume is 3.Nf3 but I really don't know. |
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| Oct-27-10 | | goldenbear: 9.0-0 looks winning to me... |
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| Oct-27-10 | | tonsillolith: <24. Nh6!> threatens mate on f7 as well as capturing the rook on f5. Then Black has the tenacious defense <24...Bg6> defending mate on f7 and continuing to protect the rook on f5. Then I found the brilliant <25. Qf7+!!> forcing <25...Bxf7>, allowing the white night to trounce in and snag the rook for free with <26. Nxf5>. |
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| Oct-27-10 | | patzer3844: doesnt Bh6 do the job also? |
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