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| Feb-05-08 | | Komapsimnita: Hmm, even after seeing the answer, reading the posts, and having a wee think, I'm still not completely clear or confident on the winning line. This was nae easy at a' ken-say. I guess this one is tough because you have to see the moves-and then see it's a losing position.I'm that used to looking for the ol' checkmate. This one stumped me and I'm waiting for it to sink in. |
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| Feb-05-08 | | Komapsimnita: Oh, there it goes, the penny has dropped. Oh yeah, that's satisfying. |
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| Feb-05-08 | | MostlyAverageJoe: <zooter: <MaJ> I don't think that's correct as 37.Kh3 draws even though it avoids both diagonals> My lame response is that 37...Rh2+ forces the white K onto one of the diagonals (or white might lose after 38.Kg4 gxf5+). However, the losing prospects of 38.Kg4 are a long shot to see in the initial position, hence indeed, I admit an inaccuracy in my earlier statement. |
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| Feb-05-08 | | SuperPatzer77: <HelaNubo> It is an excellent analysis you've shown us. I completely agree with you, HelaNubo that it is 37. Kf3!! - only move for White's win. 37...Rf2+, 38. Kg4! Rf4+, 39. Kg3! Rg4+, 40. Kxg4 gxf5+, 41. Kh3!  . So, 37...Rf2+, 38. Kg4! gxf5+, 39. Kh3 Rh2+, 40. Kxh2 Qxe5+, 41. Kh3 - Black has no more checks. |
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| Feb-05-08 | | YouRang: Fairly easy as a Tuesday should be. :-)
We have mate if:
(1) we can deflect the black Q, allowing Qxf8#,
-OR-
(2) we can get another attack on h7, allowing Qxh7#.
With this in mind, one notices the rook screaming to make both threats with 35.Ra7!, and black can only deal with one of those threats. Black can try some desperado checks, and white still needs to exercise basic caution, but the game is over. |
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| Feb-05-08 | | DarthStapler: I got the idea and I saw Rc1+ but after Kg2 I thought he would play Rc2+ and missed the Rg1+ defense, however I then saw Kh3 wins |
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| Feb-05-08 | | general607: I found Ra7 quickly, but took a minute or so to verify Kg2-f3 or h3 depending on black's choices -g4 following the rook checks outlined in other posts. Good game. |
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| Feb-05-08 | | Boerboel Guy: Removing the guard....this was very easy! |
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Feb-05-08
 | | kevin86: TTTT,I missed this one. I was looking at other moves but missed Ra7 :(.The text is brilliant as it skewers the black queen to a mate threat at g7. Black has only a few spite checks and a halfpenny trap left to him.
(the trap): 38 ♔xg1??,where ♕xa7+ turns the tables. |
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| Feb-05-08 | | SpoiltVictorianChild: I saw the Ra7 move, but got lost in the counter possibilities, and didn't see a way out for white's king, so gave up that line. This was tough for a Tuesday. |
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Feb-05-08
 | | ClassZPlaya: I solved this, but I thought it was quite difficult. I found HelaNubo's line (36. ... Rc2+ 37. Kf3 Rf2+ 38. Kg4 gxf5+ etc. ) after analyzing what turned out to be the game continuation, and I thought Black could do better. But I have to admit I only found this because I assumed that White had a winning line, this being a puzzle and all. Over the board I think I would have probably only considered 36. ... Rc2+ 37. Kh3? |
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| Feb-05-08 | | znprdx: Beautiful 'Friday' problem :) Our chess experience would tell us that despite the obvious beauty of 35.Ra7 - the variations of the wild rook checks which would allow g5xf5+ combined with the final Qxe5+ (especially after losing the rook) seem too much because of an instinctive fear of a possible Rg8+. The key move therefore had to be precisely calculated and seen exactly as in the excellent analysis by <HelaNubo:> This was a very impressive feat - and most instructive. I chickened out and started looking at e5xf6 when I timed out while entertaining the fantasy of a delayed Ra7. tsk-tsk |
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| Feb-05-08 | | wals: Divert the black Queen
35.Ra1-a7...Q x a7 36. Q x f8 +
PM =
Didn't even notice the possibility Rc3-c1+ |
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| Feb-05-08 | | HOTDOG: what about 35.Qxf8+ Rxf8 36.Ra8 ? |
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| Feb-05-08 | | SuperPatzer77: <HOTDOG> You've overlooked the Black Rook on c3. 35. Qxf8+?? Qxf8, 36. Ra8 Rc8! leaving Black a queen up  |
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| Feb-05-08 | | johnlspouge: I agree with the consensus: I expected resignation after 35.Ra7, so because it was Tuesday, I dismissed the spite checks too fast. I would have checked carefully on Thursday, having been burned by the puzzle about the "obvious" move 30. of Uhlmann vs T Paehtz, 1974
Heigh ho, halcyon days, when a Tuesday was really a Tuesday... |
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Feb-05-08
 | | patzer2: For today's puzzle solution, the sham decoy sacrifice offer 35. Ra7! wins with the decisive threat of deflecting the overworked Black Queen from her guard of the Rook on f8. After a few meaningless spite checks, Black is forced to resign. |
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| Feb-05-08 | | johnlspouge: Wow! I just got through all the checks, at last. Your stock certainly went up today, <HelaNubo>! |
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| Feb-05-08 | | Certhas: Damn I saw the combination fxg7... Bf7 and and eventual Ra8 as winning and completely missed the in hindsight obvious Qg7 which holds the defense together and actually wins for black according to crafty... |
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| Feb-05-08 | | just a kid: This is simple tactics. 35.Ra7! either gives mate after Qxa7 Qxf8#,or any Queen move and Qxh7#.I easily got it.=) |
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| Feb-05-08 | | Fezzik: I agree that seeing Ra7! is relatively easy. But noticing that the dark squares around the king are booby-trapped is much more difficult. I'd give this a bit more than 1.5 stars even though the first move is a thematic deflection/skewer attack. |
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Feb-05-08
| | Kasputin: I saw 35. Ra7 fairly quickly but, being a Tuesday, I wondered if the possible black rook checks meant that there might be an even easier win. I couldn't see any, so figured that Ra7 was the right move. That of course was the easy part - nothing that black does with the queen will save the position. And looking at the rook checks, I thought it would be relatively easy for white's king to get away. Not really! Some very concrete calculation is needed for white to win this - and I saw only a small part of that. |
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| Feb-05-08 | | D.Observer: What a move for Black's 37th! Sacrificing a rook?! |
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| Feb-05-08 | | RandomVisitor: Black could have tried other 28th moves - 28...Nc5 took the knight out of the action.
click for larger view
(23-ply)
1. (-0.37): 28...Ne5 29.Qh6 Qe7 30.Ra7 Qf6 31.Bg5 Qg7 32.Qxg7+ Kxg7 33.Be7 Rfe8 34.f6+ Kg8 35.Bxd6 Ba8 36.Bh3 Rcd8 37.Be7 Nxd3 38.Bxd8 Bxe4+ 39.Bg2 2. (-0.31): 28...Qb5 29.h5 gxh5 30.Qh6 Kh8 31.Rc1 Bb7 32.Rxc8 Rxc8 33.Qxd6 f6 34.Be3 Qa5 35.Qxd7 Qxb4 36.Kh2 Rg8 37.Bd4 Rf8 38.Be3 Ba6 |
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Feb-05-08
 | | chessgames.com: We had no idea that Black had such testing resources. Well spotted. |
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Kibitzing
sac: 27.Qe3