Jun-11-11
 | | bright1: Wednesday puzzle with White to play and win on move 27. |
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| Jun-24-15 | | dfcx: White has a one pawn advantage.
27.Nf6+ gxf6
28.gxf6
Now black can't defend against Qh5 followed by Rxg6 next. The best black can do after 27.Nf6+ is Kf8, losing the exchange after Nxe8. |
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| Jun-24-15 | | dfcx: If black plays
28...Qf8
29.Qh5 Rd7
30.Rd3 followed by 31.Rh3 wins. |
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| Jun-24-15 | | M.Hassan: "Medium/Easy"
White to play 27.?
White is a pawn up
27.Nf6+ gxf6
28.gxf6 Qf8
29.Qh5 Bf4
White has given up a Knight for a pawn so far. With the pawn on f6, White can afford to give more material away to gain more: 30.Rxg6+ fxg6
31.Qxg6+ Kh8 <forced or else...Qg7 32.Qxg7#> 32.f7 Re7
33.Qf6+ Qg7
34.Qxf4 Rxf7(...Qxf7 will be a separate line that I did not explore) 35.Qh4+ Kg8
36.Qxd8+ Rf8
37.Qxb6
White is now stronger and should win
1-0 |
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| Jun-24-15 | | agb2002: White has an extra pawn.
The white pieces seem ready to attack the black king, starting with 27.Nf6+ gxf6 (27... Kh8 28.Qh5#; 27... Kf8 28.Nxe8 + - [R+P vs N]) 28.gxf6: A) 28... Qc7 29.Qh5 Qd6 (29... Qe5 30.dxe5 Rxd1+ 31.Qxd1 wins; else 30.Qh6) 30.Rxg6+ and mate in two. B) 28... Qf8 29.Qh5
B.1) 29... Rd7 30.Rdg1
B.1.a) 30... e5 31.Rxg6+ fxg6 32.Rxg6+ Kf7 (32... Rg7 33.Rxg7+ Qxg7 34.fxg7 wins) 33.Rg7+ Ke6 (33... Kxf6 34.Qg6#) 34.Qg4+ and mate next. B.1.b) 30... Ree7 31.fxe7 (31.Ba3 also wins) 31... Qxe7 (31... Rxe7 32.Ba3 wins the second exchange) 32.Rxg6+ fxg6 (32... Kf8 33.Qh8#) 33.Rxg6+ Kf7 (33... Kf8 34.Qh8+ Kf7 35.Qg8#) 34.Qh7+ Ke8 (34... Kf8 35.Q(R)g8#) 35.Rg8+ Qf8 36.Rxf8+ Kxf8 37.Qxd7 is a massacre. B.1.c) 30... Rec8 31.Rxg6+ fxg6 32.Rxg6+ Kf7 33.Rg7+ Kxf6 34.Qg5(6)#. B.2) 29... e5 30.Rxg6+ fxg6 31.Qxg6+ Kh8 32.Qh5+ Kg8 33.Rg1+ and mate in two. |
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| Jun-24-15 | | Shoukhath007: Hello.easy.puzzle.for.the.day
Try.to.solve.this.puzzle.Beginners.can't.solve.t-
his
https://www.youtube.com/watch?v=QP0...
bye |
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| Jun-24-15 | | gofer: The first few moves are "easy" to see, but the main task at hand is to ensure that we see that this position 
click for larger viewis absolutely lost for black...
29 ... Be5
30 Rxg6+ fxg6
31 Qxg6+ Kh8
32 Qh5+ Kg8
33 Rg1+ Qg7
34 Rxg7+ Kf8
35 Qf7#/Qh8#
29 ... Rd7
30 Rdg1 Bf4 (what else?)
31 Rxg6+ fxg6
32 Rxg6+ Rg7
33 Rxg7+ Qxg7
34 fxg7 
29 ... Bf4
30 Rxg6+ fxg6
31 Qxg6+ Kh8
32 Rd3
click for larger view~~~
Yep, but perhaps a little tricky for a Wednesday. |
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| Jun-24-15 | | morfishine: I had <27.Nf6+> continuing 27...gxf6 28.gxf6 Qf8 29.Qh5 Here <29...Bf4> probably offers the stingiest defense, but as <gofer> states "...perhaps a little tricky for a Wednesday" ***** |
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| Jun-24-15 | | patzer2: In my attempt at this Wednesday puzzle, I got all the way through to visualizing the end of the game in my calculation with 27.Nf6+ gxf6 28.gxf6 Qf8 29. Qh5 where Black resigned. However, I didn't see why it was such a strong win for White until I ran it through the computer (Deep Fritz 14). In the final position after 29. Qh5 (diagram below):
click for larger viewIf 29...Be5, Fritz gives 30. Rxg6+! fxg6 31. Qxg6+ Kh8 32. Qh5+ Kg8 33. Rg1+ Bg3 34. Rxg3+ Qg7 35. Rxg7+ Kf8 36. Qf7#. If 29... Bf4, Fritz gives 30. Rxg6+! fxg6 31. Qxg6+ Kh8 32. Rd3 Bh6 33. Rh3 Rd7 34. Bc1 Rh7 35. Bxh6 Qg8 36. Bg7+ Qxg7 37. Qxg7#. If 29... Rd7, Fritz gives 30. Rdg1! Bd6 31. Rxg6+ fxg6 32. Rxg6+ Rg7 33. Rxg7+ Qxg7 34. fxg7 Rb8 35. d5 e5 36. Qh6 Bc7 37. Qe6+ Kh7 38. Qf7 Rg8 39. Qxc7 Rxg7 40. Qxe5 Ra7 41. Qh5+ Kg8 42. Qg6+ Kf8 43. Ba3+ Re7 44. Qh7 a5 45. Qxe7+ Kg8 46. Bb2 a4 47. Qg7#. P.S.: Looking for an improvement for Black, a key turning point in the game is <13...Rfe8 14. Nxc6  >. Instead, Black should play 13... Bxd4! 14. cxd4 Bb5 when play might continue 15. d3 Qf5 16. Rf3 Bc6 17. Rg3 Rfd8 18. d5 exd5 19. Nd2 Re8 = (-0.21 @ 23 depth, Deep Fritz 14). |
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| Jun-24-15 | | whiteshark: <dfcx: ... The best black can do after 27.Nf6+ is Kf8, losing the exchange after Nxe8.> D'oh, you're right! |
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| Jun-24-15 | | alphee: Easy one until ♕h5, then black will play something before ♖xg5+ which should lead to the mate. |
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| Jun-24-15 | | wooden nickel: <In ceremonies of the horsemen, even the pawn must hold a grudge -Dylan>
On 27... Kf8, instead of the strong 28.Nxe8, 28.Rf1 keeps up a lot of pressure!
click for larger view |
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| Jun-24-15 | | CHESSTTCAMPS: White is up a pawn with a big king-side space advantage and all pieces well placed to attack black's weakened castled position. Black threatens 27... Nh4. With white's Rg2 lined up with the black king, Nf6+ is begging to be played. 27.Nf6+! is a small price for advancing a dangerous pawn and opening the g-file. A safe pawn on f6 is worth a bishop in support of an invading queen. A) 27... gf6 28.gxf6 Qf8 29.Qh5 Bf4 30.Rxg6+ fxg6 31.Qxg6+ Kh8 32.Rd3 Qh6 33.Rh3! Re7 (Qxh3 34.Qg7#) 34.Rxh6 Bxh6 35.fxe7 wins. A.1 29... Qa7|c7|d7|d6|b4 are all met by 30.Qh5 with the dual mate threats Qh6 and Rxg6+ which can't both be defended. e.g. 29... Qd6 30.Qh5 Qf4 31.Rxg6+ fxg6 32.Qxg6+ Kf8|h8 33.Qg7#
Another line is 29... Qd7 30.Qh5 Bd6 31.Rxg6+ fxg6 32.Qxg6+ Kf8 (Kh8 33.Rd3) 33.Qh6+ Kg8 (Kf7 34.Qg7#) 34.Rg1+ forces mate. A.2 29... Be5 is also met by 30.Rxg6+! fxg6 31.Qxg6+ Kh8 32.Rd3 and black can only delay Rh3+ forcing mate. B. 27... Kh8? 28.Qh5#
C. 27... Kf8 28.Nxe8 is a safe exchange+pawn advantage, but 28.Rf1 followed by 29.Qh5 is likely to checkmate faster. Time for review.... |
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Jun-24-15
 | | Penguincw: Hmm, I got 27.Nf6+ gxf6 28.gxf6 Qf8 29.Qh5, but couldn't find the next line, so technically I got this puzzle, since no other moves were played. However, OTB, if black played 29...Bf4, I would've played 30.Rxg6+ fxg6 31.Qxg6+ Kh8 32.f7 Re7 33.Qf6+ Kh7 34.Qxf4 Qxf7, and white is down the exchange for 2 pawns. Obviously, I didn't calculate all in my head, but I can see these moves if I play them out without looking at any analysis. Also, do I really have to calculate this deep for a <Wednesday> puzzle?! |
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| Jun-24-15 | | kevin86: Disaster will come soon to black's crowded king side. |
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| Jun-24-15 | | Chess Dad: I downloaded the .pgn and put it into the stockfish engine. 27. Nf6+ wasn't even in the top three moves considered until depth 19, and then it quickly advanced to about +4 vs +1.7 for the other choices. But as was mentioned previously, 27... Kf8 was rated a much better move than 27... gxf6. The advantage for white after gxf6 is about +15. So, that's the Wednesday puzzle. I wonder what Friday will bring us this week... |
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| Jun-24-15 | | Mating Net: Blocking the f7 pawn from moving is worth a piece as it prevents the enemy heavy pieces from defending along the second(seventh) rank. |
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Kibitzing
sac: 27.Nf6+