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Mar-22-10 | | johnlspouge: Monday (Very Easy)
Alapin vs Alekhine, 1914 (45...?) Black to play and win.
Material: Up a P. The White Kh1 is stalemated. The Black Qf3 pins Qg2 to Kh1, so Black has a forcing candidate that exploits the pin. Candidates (45...): Re2
45…Re2
(threatening 46…Rxg2 47.Rxg2 Qf1+ 48.Rg1 g2# or 46…Qxg2# if Rg1 moves) 46.Qxf3 Rxh2# |
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Mar-22-10 | | ChocolateCakeLover: Puzzle of the day: March 22,2010
Difficulty: Very Easy
Black to play 45...?
45...♖e2! will do the trick
Whatever white does will lose material or be mated
46.hxg3 ♕h5+ 47.♕h2 ♕xh2#
 click for larger viewor 47.♕g3 ♕xh3#
 click for larger view46.♕xf3 ♖xh2#
 click for larger view |
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Mar-22-10 | | ChocolateCakeLover: I thought the position after 45...Re2 is called a zugzwang. |
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Mar-22-10 | | TheaN: 1/1
I now notice that actually 43.hxg3 ends also immediately 43....Qh5†, taking advantage of the h-file, 44.Qh2 Rxh2‡ 0-1. I consider it solved anyways ^^. |
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Mar-22-10 | | vanytchouck: hi, hi, hi 45. Re2 !! (around 5 seconds).
I've earlier tried 45. Qxg2 +. |
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Mar-22-10 | | turbo231: I haven't played Rybka yet, but i know she wont be mated so quickly. When it's all said and done it will end up Q vs R. I can see her taking the black pawn on g3, she wont make simple moves. All you can do after that is take the Q with your R, and then white's rook will take black's R then it'll be black's Q vs white's R. Time to play Rybka. Or she could delay the action by moving b4 b5. But rest assured it wont be a simple quick mate. |
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Mar-22-10 | | Patriot: This took me a minute or so looking at various candidates and then seeing 45...Re2 46.Qxf3 Rxh2#. White at least loses queen for rook and that's good enough for a win. There is no need to analyze this further, which is akin to "Beating a dead horse". |
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Mar-22-10
 | | chrisowen: 1912 game Alekhine meets his death, choked it in a french defence. The worm turns 45.Qg2 is a numpty, kill her off with 45..Re2. White's got faith no more, is rg2 semi on? All a pin tries lingering hopes to draw.. Qf1+ Rg1 g2+ Qxg2 Qxg2+ Rxg2. Good spirits take me down Re2 path, Alekhine shoes him round the houses. |
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Mar-22-10 | | turbo231: Well i'm playing Rybka, i moved re2 Rybka moved b4b5, i moved a6xb5. Then she didn't take the pawn at g3 as i thought she would, but instead moved her pawn to h3. So then I took her Q with my R, of coarse she took my rook. Just as i thought it's Q vs R. Someone said it's a mate in one, two or three moves, play Rybka then tell me that. |
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Mar-22-10 | | Train: <Patriot: White at least loses queen for rook and that's good enough for a win. There is no need to analyze this further, which is akin to "Beating a dead horse". > You must not be planning on going very far in chess. Re2 is a forced checkmate in a few moves. |
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Mar-22-10 | | desiobu: Re2 with Rh2# or winning the queen to follow. |
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Mar-22-10 | | Patriot: <Train> My goal is expert and I'm nearing class A. If white had some counterplay then I would agree with you that more calculation is necessary, but here he has absolutely nothing. It's important to be able to calculate, but it's just as important to know when to stop analyzing. |
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Mar-22-10 | | turbo231: In my game Rybka made a tremendous and fatal blunder by not taking the pawn at g3. I could've just marched my pawn down the b file and all that rybka could do was march her pawn up the a file as far as a5. Then she would have to move either her Q or R, then it's mate in one avoiding the Q vs R tango! I wasn't smart enough to see that the first time around. |
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Mar-22-10 | | David2009: Monday 22/03/2010 puzzle Alapin vs Alekhine, 1914 Black 45...? 45...Re2 and it is all over since ...Qxf3 allows 46 Rxh2#. Check:
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Other kibitzers have said it all. |
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Mar-22-10 | | Cushion: Re2! appears to win. |
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Mar-22-10 | | turbo231: I saw the right first move re2, but because i blundered and ended up with a Q vs R end game, i'll mark this down as a failure. |
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Mar-22-10 | | kevin86: A Zodie Keller quote:"It's not the strongest looking move that win-just the best move". 45...♖e2!!-very coy:the queen cannot move (on penalty of mate) nor stay there. Unusual queen sac. |
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Mar-22-10 | | kevin86: to add to the move-the final position is also a zugzwang. |
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Mar-22-10 | | mrsaturdaypants: 45...Re2, right?
46 Qxf3 Rh2#
46 h3 Rxg2 47 Rxg2 Qf1+ 48 Rg1 Qxh3# |
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Mar-22-10 | | YouRang: Easy but nice. 45...Re2 attacks the pinned queen with a rook, and if 46.Qxf3, then we take advantage of the immobile king with 46...Rxh2#. |
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Mar-22-10 | | turbo231: I meant to say all rybka could do was march her pawn up the "H FILE" to h5. |
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Mar-22-10 | | goodevans: <ChocolateCakeLover: I thought the position after 45...Re2 is called a zugzwang.> <kevin86: to add to the move-the final position is also a zugzwang.> My understanding of the term "Zugzwang" is that the player with the move would be fine if he didn't need to play a move but is forced to commit suicide. This position doesn't fall into that category: Even if he could avoid making a move white would lose a whole Q or be mated. |
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Mar-22-10
 | | chrisowen: <once.. best way to defend against a threat is to ignore it> i notice you skated around throwing up a long post curve-ball this time. 45.Qg2 is a big mistake. Your pitch is right in the money, it warrants choosing between nailed on mate in 5 or jimmy the 1st rank 45.Rg2 backs the rooks transfer and draws. |
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Mar-22-10 | | DarthStapler: Got it |
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Mar-22-10
 | | benveniste: <dzechiel> I don't think it's just that Alekhine just decided it was time to end the game, but rather that Alapin just made a mistake. If 45. ♖g2, I think the result would have been a quick draw. |
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