|Jan-31-09|| ||MaxxLange: good puzzle material!|
|Sep-10-11|| ||superstoned: 'Find White's 23rd move!'|
|Jul-11-19|| ||Fish55: Got it. If 26...Rxh6 27.Qg8 is mate. I don't see any good alternatives for black at moves 23-25.|
|Jul-11-19|| ||al wazir: I saw the first three moves, but not 26. Bh6+. (Which means that I wouldn't have played it over the board, because after 24...fxg6 white is a ♖ down.)|
|Jul-11-19|| ||mel gibson: I saw the first few moves in under 15 seconds.
Much easier than yesterday's.
Stockfish 10 says mate in 17:
(23. Rxe7 (♖e1xe7 ♗d6xe7
♘h4xg6+ ♔f8-g7 ♕g5xe7 ♘d7-b6 ♕e7xc7 ♘b6xd5 ♕c7xc5 ♔g7xg6 ♕c5xd5 ♖h8-e8
♕d5-g5+ ♔g6-h7 ♗c1-b2 ♖e8-g8 ♕g5xh5+ ♔h7-g7 ♕h5-g5+ ♔g7-h7 ♕g5-f5+ ♔h7-g7
♗b2xd4+ ♔g7-h6 ♗d4-e3+ ♖g8-g5 ♗e3xg5+ ♔h6-g7 ♗g5-f6+ ♔g7-h6 ♕f5-g5+ ♔h6-h7
♕g5-g7+) +M17/50 214)
|Jul-11-19|| ||NBZ: Hey <superstoned>! Looks like CG took up your puzzle suggestion 8 years later.|
|Jul-11-19|| ||boringplayer: Saw 25.Ne5 and gave up on that idea. I felt 23.Bf7 might work instead. I'm thinking that one reason I missed Bh6+ is that I was so fixated on the mate possibility on f7. It was important to notice that the white KB hit g8 too. This has been a problem for me OTB, as well.|
|Jul-11-19|| ||agb2002: White has the bishop pair for a bishop, a knight and a pawn.|
Black threatens Nxd5.
White can attack with five pieces, starting with 23.Rxe7 Bxe7 (23... f6 24.Rf7+ wins) 24.Nxg6+:
A) 24... fxg6 25.Qxg6 Ne5 (25... Rh7 26.Qg8#) 26.Bh6+ Rxh6 27.Qg8#.
B) 24... Ke8 25.Qxe7#.
C) 24... Kg7(8) 25.Nxe7+ Kf8 (25... Kh7 26.Be4+ and mate next) 26.Nf5 wins.
|Jul-11-19|| ||SpamIAm: <agb2002>, in your first line you missed 23.Rxe7 f6 24.Nxg6#.|
|Jul-11-19|| ||SpamIAm: Interesting that Gutman chooses 7.exf3 instead of 7.Bxf3, accepting doubled pawns in order to open up the e-file. For his part, Kholmov undoubles white's pawns with 9...exf4 instead of simply castling, ending up playing 10...Kf8. This would not be a game that Tarrasch approves of. ;)|
|Jul-11-19|| ||SpamIAm: Playing through the game it appears that Gutman's playing 10...Kf8 and 11...h5 plus leaving the KR on its original square was an attempt at a kingside attack. But it backfires badly, as instead white gets a brilliant kingside attack. Turnabout is fair play.|
|Jul-11-19|| ||charlesdecharemboul: Il primo puzzle di chessgames che ho capito!|
|Jul-11-19|| ||charlesdecharemboul: The first chessgames puzzle I've guessed!|
|Jul-11-19|| ||malt: Easier than yesterday's 23.R:e7 B:e7
(24...fg6 25.Q:g6 Ne5 26.Bh6+ R:h6 27.Qg8# )
(25...K:g6 26.Q:f7# )
|Jul-11-19|| ||piltdown man: Very easy today.|
|Jul-11-19|| ||RKnight: Good puzzle, Gutman used every one of his pieces. I didn't solve it because I failed to see the in-retrospect-obvious 26. Bh6+|
|Jul-11-19|| ||patzer2: Excellent Thursday (23. ?) puzzle! No doubt the game continuation 23. Rxe7! Bxe7 24. Nxg6+ +- (mate-in-24, Stockfish 10 @ 35 ply) is strongest and best. |
However, I went for a different winning solution.
My attempt was 23. Bxf7 +- (+2.46 @ 32 ply, Stockfish 10), which is clearly winning after 23.Bxf7 Kxf7 24.Rxe7+ Bxe7 25.Qxg6+ Kf8 26.Nf5 Qe5 27.Bf4 Qf6 28.Nxe7! Qxg6 29.Nxg6+ Kg8 30.Nxh8 Kxh8 31.b4! cxb4 32.Kg2 Kg8 33.Kf3 Kf7 34.Ke4 a5 35.Kxd4 +- (+4.05 @ 39 ply, Stockfish 10).
P.S.: So where did black go wrong? According to Stockfish 10, Black's decisive mistake was 21...Ng8? allowing 22. Bd5 +- (+3.09 @ 34 ply).
Instead, 21...Ng4 22. Bd5 Nde5 23. f3 f6! 24. Qf4! g5 25. Qf5 gxh4 26. fxg4 Qe7 27. Re2 hxg4 28. Bg5 Kg7 29. Bxh4 b6 ± (+0.60 @ 35 ply, Stockfish 10) gives Black a fighting chance.
Earlier, instead of 19...d4 which allows 20. c3! dxc3 21. Qxc3 ⩲ (+0.82 @ 32 ply, Stockfish 10), Black could have held it level with 19...e5 = ((0.00 @ 33 ply) or 19...Ng4 = (0.00 @ 33 ply).
In the opening, instead of 6...Bxf3 7. Bxf3 ⩲, our Opening Explorer indicates Masters prefer the popular move 6...e6 = as in Black's win in J Houska vs S D Swapnil, 2018.
|Jul-11-19|| ||thegoodanarchist: I love Monday puzzles!|
|Jul-11-19|| ||saturn2: After 25...Ne5 it is a good Monday.|
|Jul-11-19|| ||saturn2: <patzer2> I looked at the Bxf7 line too but got stuck after 26...Bf6|
|Jul-11-19|| ||patzer2: <Saturn 2> Yes it's a bit tricky after 23.Bxf7 Kxf7 24.Rxe7+ Bxe7 25.Qxg6+ Kf8 26.Nf5 <Bf6> (diagram below)|
click for larger view
White's first move there (diagram above), 27. Bh6+ forcing 27...Rxh6, is obvious.
What's not obvious (diagram below) is
click for larger view
28. Nxh6! +- (+3.67 @ 36 ply, Stockfish 10) is the only winning move.
The tempting 28. Qxh6 = (0.00 @ 37 ply, Stockfish 10) misses the mark as it's only good for equality.
|Jul-11-19|| ||lost in space: Easiest puzzle of this week, Tool me a few seconds to solve it.|
|Jul-11-19|| ||whiteshark: In retrospect, a very targeted combination.
In my opinion, the level of difficulty is appropriate for the day of the week.
|Jul-11-19|| ||GoldenKnight: Got this one all the way.|
|Jul-12-19|| ||agb2002: <SpamIAm: <agb2002>, in your first line you missed 23.Rxe7 f6 24.Nxg6#.>|
Yes, thank you! It's rather embarrassing to miss a mate in one...