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Aug-02-12
 | | perfidious: This position is Sunday puzzle material:
click for larger view26.? |
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Feb-14-13
| | perfidious: <cehertan: ....USCF unfortunately rescinded my "donkeyhood" due to a rash of sudden name changes in the federation, such as "Mr. X" and the like...> Dirty wretches-they could have let you keep Mr Donkey, at least! |
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| Oct-08-17 | | mel gibson: The computer agrees with the first few moves:
26. Nxg6 (26.
Nxg6 (♘f4xg6 ♘f8xg6 g4xf5 ♗e6xf5 ♖g2xg6 ♗d8-g5 ♗e3xg5 ♗f5xd3 ♖g6xh6+
♔h7-g8 ♗g5-f6+ ♖f7-g7 ♗c2xd3 ♖g7xg1 ♔h2xg1 ♕d7-e6 ♗d3-g6 ♕e6xf6 e5xf6
♖e8-f8 ♗g6-h5 b7-b6 f6-f7+ ♔g8-g7 ♖h6xc6 ♖f8-h8 ♗h5-g4 b6-b5 ♖c6-a6 ♔g7xf7
♖a6xa7+) +7.44/19 15)
score for white +7.44 depth 19 |
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Oct-08-17
| | perfidious: First puzzle in a while featuring two former opponents, and more'n likely the only one to date on a Sunday. A most elegant combination by old friend Charlie Hertan, which he annotated in <Chess Horizons>; as noted by <chancho>, Curdo was usually the player meting out such punishment rather than being the recipient. |
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| Oct-08-17 | | mel gibson: I actually saw a different move & just tried it out on the computer. 26 Nh5 PxN so if Black was silly enough to take the Knight it's mate in 17 ! (26. .. gxh5 27. gxf5 (g4xf5 ♗e6xf5 ♕d3xf5+ ♕d7xf5 ♗c2xf5+ ♘f8-g6 ♖g2xg6 ♗d8-g5 ♖g6xg5+ ♔h7-h8 ♖g5xh5 ♖f7-g7 ♖h5xh6+ ♔h8-g8 ♖g1xg7+ ♔g8xg7 ♖h6-h7+ ♔g7-g8 ♖h7xb7 ♖e8-a8 ♗e3-f4 ♖a8-b8 ♖b7xb8+ ♔g8-f7 e5-e6+ ♔f7-e7 ♖b8-b7+ ♔e7-f8 ♗f4-d6+ ♔f8-g8 ♗f5-h7+) +M17/14 63)) |
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Oct-08-17
 | | al wazir: I got the first two moves and contemplated 28. Rxg6, but I opted for 28. Qxf5 instead. After 28...Rxf5 29. Rxg6 Rg5 (to foil Rxh6#) 30. Rd6+ Kh8 31. Rxd7, white is a piece up. |
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| Oct-08-17 | | Cheapo by the Dozen: I totally overlooked the ... Bg5 defense. And when I did see it come up in the game, my response was R(6)xg5. |
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| Oct-08-17 | | diagonalley: wonderful... but too complicated for <diagonalley> :-( |
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| Oct-08-17 | | WorstPlayerEver: Geez simple as funk. |
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Oct-08-17
| | al wazir: <28. Qxf5 Rxf5 29. Rxg6> Bg5 spoils my line. |
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| Oct-08-17 | | Walter Glattke: White also wins with 28.Nxe6 Rxe6 29.gxf5 gxf5 30.Qxf5+ Rxf5 31.Bxf5+ Ng6
32.Rxg6 Rxg6 33.Bxg6+ Kh8 34.Bxh6 or
32.Bxd7 Rxg1 33.Kxg1
28.-Nxe6 29.gxf5 gxf5 30.Bxh6 (Rg6? Ng5!) Kxh6 31.Qe3+ Kh7 32.Rg6 Ng5 33.R1xg5 Bxg5 34.Qxg5 |
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| Oct-08-17 | | drollere: this was sheer fun ... with his Q attacked, he adds Rh6 to the skewer. |
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| Oct-08-17 | | agb2002: The material is identical.
The crossing point of the g-file and the b1-h7 diagonal is g6. This suggests 26.Nxg6, to weaken both lines, 26... Nxg6 (26... Kxg6 27.gxf5+ wins) 27.gxf5 Bxf5 28.Rxg6 Bg5 (28... Bxd3 29.Rxh6#) 29.Bxg5 Bxd3 (29... Kxg6 30.Bf6+ followed by 31.Qxf5 wins decisive material) 30.Rxh6+ Kg8 (30... Kg7 31.Bd2+ Kf8 32.Bb4+ and mate in three) 31.Bf6+ Rg7 (31... Kf8 32.Rh8#) 32.Bxd3 Ree7 (32... Rxg1 33.Rh8+ Kf7 34.Rh7+ Kf(g)8 35.Rxd7 wins decisive material) 33.Bxg7 Rxg7 34.Rxg7+ wins decisive material (34... Qxg7 35.Rg6; 34... Kxg7 35.Rh7+). |
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| Oct-08-17 | | agb2002: In my subline 32... Rxg1 the immediate 33.Kxg1 seems to be even stronger. |
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| Oct-08-17 | | morfishine: <26.Nxg6> looks like a winner Yep
***** |
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| Oct-08-17 | | gofer: A queen sacrifice on a <Sunday>! Okay its not the first or even the second move, but its
there waiting in the wings...
<26 Nxg6 ...>
26 ... Kxg6?
27 gxf5++ Kh5 (Kh7 fxe6+ +-)
28 f4! mating
click for larger view26 ... Nxg6
27 gxf5 Bxf5
28 Rxg6!! Bxd3
29 Bxd3 +-
White threatens Rxh6# and the issue for black is that Rxh6 is a double check, so defending against it is really difficult! Is there an alternative defence for black? Not that I can see! ~~~
Like <Cheapo> I missed <28 ... Bg5> as a defence. I thought it would come later, but as white will regain tempo with the queen
sacrifice the result is not too different. |
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| Oct-08-17 | | yadasampati: 26.Nxg6 is so obvious, that i first thought it was Monday already :-) |
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| Oct-08-17 | | patzer2: I quickly saw the first two moves 26. Nxg6!! Nxg6 27. gxf5 Bxf5 of today's Sunday puzzle (26. ?) solution. However, on my third move, like <al wazir,> I went for 28. Qxf5? Rxf5 29. Rxg6 (diagram below.)
click for larger viewHere (diagram above) the obstruction 29...Bg5! ∓ (-1.04 @ 34 depth, Stockfish 8) turns the game in Black's favor. What I missed, in addition to 29...Bg5! (waiting to be played in the diagram above), is White's devisive follow-up 28. Rxg6! +- (+10.64 @ 35 depth, stockfish 8.) After 28. Rxg6! (diagram below,)
click for larger viewthe enprise Rook and the Queen are perfectly safe. Indeed, they are poisoned pieces. If 28...Bxd3??, then simply 29. Rxh6#. If 28...Bxg6, then 29. Qxg6+ Kh8 30. Bxh6 +-, with the threat of 31. Qh5, forces mate-in-seven. So after 28. Rxg6!, what should Black play? The strongest response is the game continuation 28...Bg5 29. Bxg5 Bxd3 30. Bxg3 hxg5 31. R6xg5+ +- (+7.65 @ 35 depth, Stockfish 8.) And even then best play is not simple, as after 31...Kh6 White's strongest winning continuation is the difficult 32. Rg6+ Kh5 33. f4! +- (+28.09 @ 34 depth, Stockfish 8.) P.S.: For an early improvement, instead of 14...f5 allowing 15. Ne2! ± (+0.68 @ 34 depth, Stockfish 8,) Black can hold it near level with the more active reply 14...Qh4 15. Be3 f5 = to ⩲ (+0.18 @ 32 depth, Stockfish 8.) |
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| Oct-08-17 | | thegoodanarchist: Charles put a Hertan on Curdo |
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| Oct-08-17 | | stst: Too many variations, and a typical heavy weapon street dog fight. Try one easy line (almost gurantee the game would play out very differently):
26.Nxg6 NxN
27.Bxh6 KxB
28.gxf5 Bxf5
29.Qe3+ Kh7
30.RxN BxR
31.BxB+ Kg7
32.BxR dis+ KxB
33.Qf4+ Ke6
34.Rg6+ Be6
35.QxB# |
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| Oct-08-17 | | bubuli55: Deviated from text on move 36.
Moved the other R.
36.R4g5+ instead of the game's 36.R6g5+ |
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| Oct-09-17 | | Granny O Doul: Yeah, hard to resist the double check. Also, it's more fun to draw the king deeper into White's territory. |
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| Jun-23-23 | | belgradegambit: Checkpoint Charlie |
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Jun-23-23
 | | fredthebear: Berlin - 52°30′27″N 13°23′25″E / 52.50750°N 13.39028°E, or was it a tag in his book? Can't imagine a tournament called "Come Back to UMassacre" nowadays. |
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Sep-14-24
| | perfidious: Curdo would have been better off eluding the checkpoint that fateful day in Amherst. |
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Kibitzing
sac: 29.Bxg5