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| Sep-08-10 | | Eduardo Leon: 42.fxg6 allows a mate in at most six. After 42...♗e6+ 43.♗f5 ♗xf5+ 44.♕g4 ♖d3+
click for larger viewWhite can choose between
A) 45.♔g2 ♕xg4+ 46.♔f1 (or 46.♔f2) 46...♕f3+ 47.♔e1 ♖d1#: 
click for larger viewB) 45.♔h4 ♗xg4 46.g7+ ♔g8 47.♖xg4 ♕h2#:
click for larger viewC) 45.♔h4 ♗xg4 46.g7+ ♔g8 47.♖h1 ♕g5#:
click for larger viewD) 45.♖g3 ♕xg3#:
click for larger view |
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| Sep-08-10 | | thegoodanarchist: As George Costanza would say, "It really didn't take me that long." |
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| Sep-08-10 | | Marmot PFL: I played a couple decent games online this morning but still somehow missed 41...g5. Went for 41...Rd7 42 Bxd5 Qxf5+ 43 Kh2 Qh5+ 44 Kg3 Qg5+ 45 Kh3 Rxd5 leading to either a R or Q ending with 2 extra pawns. That would still be a lot of work, especially the queen ending, so I had a feeling there was something better. |
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| Sep-08-10 | | desiobu: Hilariously enough I didn't even see white's Qg7# in the initial position because I was so focused on solving it for black. Still, I found ...g5 threatening Qh4# and to defend white loses the bishop at minimum. |
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| Sep-08-10 | | mrsaturdaypants: Seeing white threatening mate on g7, I looked at 41...g5. If 42 fxg6, then Be6+ wins white's queen. If white doesn't take on g6, Black is threatening Qh4#, so white's options are limited, and he probably loses his bishop. Without time for further consideration, I'm going to have to go with this line. Time to check. |
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| Sep-08-10 | | SuperPatzer77: Black's strong reply is 41...g5!! (only move to stop 42. Qxg7# and force White to resign). 41...g5!!, 42. fxg6 e.p. Be6+, 43. Qg4 Bxg4+, 44. Rxg4 Qe3+, 45. Kh4 Qf2+ (see diagram 1 below): 1) 
click for larger view46. Kh5 Qh2+, 47. Rh4 Qxh4+!, 48. Kxh4 Rd4 (winning the White bishop) (see diagram 2) below: 2) 
click for larger view49. Kh5 Rxe4, 50. Kxh6 Rf4, 51. g7+ Kg8 
Thus, 41...g5!! sure forces White to resign.
SuperPatzer77 |
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| Sep-08-10 | | WhenHarryMetSally: what ever black does he better do it quick because mate is impending. I"m ashamed to say i couldn't get it today :( |
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| Sep-08-10 | | hedgeh0g: I don't really consider this to be mch of a puzzle. 41...g5 is almost forced. |
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Sep-08-10
 | | chrisowen: It was the spring grind 41..g5 coil king suspension. Cut engine Qh4+ high-way a set lean blow, wisdom for white go a tool down. You see hop shop St.e4 roam no more. Seize a lace dam pent factor Kh3 crushed. Pressing study back theatrical Qg4 gear bottom's up. |
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| Sep-08-10 | | kevin86: Black forstalls the mate and threatens one himself. The en passant capture leads to loss of the queen after Be6+ |
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Sep-08-10
 | | OBIT: A few posters have noted Guimard repeated the position once before ending matters with ...g5. Possibly he was hoping Cherta would play 41. Qh1?, when ...Qh4+ is brutal. I think the most likely explanation, however, is that Guimard was toying with him. GMs have highly sadistic natures and will do this sometimes. :) For another example of this, there is Fischer vs Spassky, 1972 from the 1972 Fischer-Spassky match. Note Fischer's pointless rook moves 34. R1f2 and 35. R2f3, which do nothing more than sadistically demonstrate that Spassky has no useful moves left. Fischer does get to the point on his next move, setting up a decisive breakthrough that wins the game quickly. |
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| Sep-08-10 | | David2009: P Cherta vs Guimard, 1946 Black 41...? One checkmate threat deserves another: 41 ...g5! threatens Qh4#. If 42 fxg6 Bxe4 43 g7+ Kg8 and White is busted.
Time to check:
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Yes. Good decision to resign by White. |
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| Sep-08-10 | | DarthStapler: Got it |
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| Sep-08-10 | | turbo231: Missed it I'm getting a little worse each day. Maybe I need to start drinking coffee. |
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| Sep-08-10 | | YouRang: Made somewhat easier to find by the presence of white's mate threat, but still nice. 41...g5! resourcefully solves black's problem and presents white with a problems that have no good solution. |
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| Sep-08-10 | | rubato: is only my "java" opening the games at the second or third attempt? |
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| Sep-08-10 | | Once: <rubato> I've had that a few times. Try loading the latest version of Java - that may fix it. |
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| Sep-08-10 | | ashvalkyrie: am i missing something, or after fxg, black has Be6+,winning queen for a bishop, instead of BxB ? |
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Sep-08-10
| | ajk68: There has been some question why the moves were repeated. There was probably a time control at 40 moves. It might be that once Guimard had more time to think, he saw it. |
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| Sep-08-10 | | Once: <ashvalkyrie: am i missing something, or after fxg, black has Be6+,winning queen for a bishop, instead of BxB ?> There's actually not much to choose between the two moves. After 42. fxg6 Be6+ white has to give up his queen pretty quickly to delay the mate. But black also mates with 42...Bxe4
click for larger viewBlack is threatening both Bf5+ and Rd3+. White will need to give up loads of material to delay mate. After 42. fxg6, Fritzie prefers 42. Be6+ because he says it is mate in 11. But his second choice is 42. Bxe4 which is mate in 16, and that's not too shabby. I went for Be6+ as it seemed the cleaner kill, although I think either move is fine as a solution. <ajk68: There was probably a time control at 40 moves> That was what I was thinking too. Looks like it might have been a mutual time scramble. |
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| Sep-08-10 | | ashvalkyrie: now when i think about it, seems you are right. thing is, i never really considered BxB as a continuation after fxg.. |
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| Sep-08-10 | | Once: <ashvalkyrie: i never really considered BxB as a continuation after fxg..> Nor me - I was surprised when folk started mentioning it. I guess it all depends on what you saw when you first looked at the puzzle position: 
click for larger viewSome folks will look at this and focus on the vulnerable and stalemated white king on h3. And these folks (which I think includes both you and me) will play Be6+ at the first opportunity. Always look to check a stalemated king, right? But others will look at this position and see instead the inadequately protected white bishop on e4. The only thing which is saving this bishop is white's threat of Qxg7#. As soon as the Qxg7# threat is removed, these folks will think first of Bxe4 or Qxe4. And that, for me, illustrates the role of luck in chess. If your eye happens to light on the right factor you will find the winning combination a heck of a lot sooner than if you get fixated on something else. Today, either move is fine, but later in the week... |
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| Sep-08-10 | | Marmot PFL: <OBIT> Most likely black repeated moves just to make time control before looking for the win. |
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| Sep-08-10 | | ZUGZWANG67: Black has 2 extra pawns. He threatens to win a piece at e4 but is also threatened of mate. I think 41...g5, with the idea of 42...Qh4+ mate, is the solution. I don't see anything better for W than 42.fxg6 e.p. Bxe4 43.g7+ Kg8, when B wins the WB. An important point is that the heavy W pieces don't have access to either f8, g8 or h8. Time to check.
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Cool! |
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| Sep-08-10 | | TheChessGuy: A useful defensive "top kill" (with apologies to any resident of the Gulf Coast). |
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