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   Black to Play and Resign With a Sigh in 517 Moves!
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   Author  Topic: Black to Play and Resign With a Sigh in 517 Moves!  (Read 533 times)
ThudnBlunder
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Black to Play and Resign With a Sigh in 517 Moves!  
« on: Jul 24th, 2006, 3:49pm »
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http://216.25.93.108/forum/viewtopic.php?topic_view=threads&p=19242& amp;t=2860
 
You can replay the moves at:
http://www.xs4all.nl/~timkr/chess2/diary.htm (#316)
BTW, after 518. QxR+ Black is finally mated in a further 9 moves.
 
See also http://www.xs4all.nl/~timkr/chess/perfect.htm
« Last Edit: Jul 29th, 2006, 3:30pm by ThudnBlunder » IP Logged

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towr
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Re: Black to Play and Resign With a Sigh in 517 Mo  
« Reply #1 on: Jul 25th, 2006, 12:15am »
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I think I'd rather give a draw than do 517 moves.
 
But isn't it a draw anyway if no piece is capture after 50 moves? With just 7 pieces on the board and 517 moves, you could finish it.
Still, a staggering computational result.
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Grimbal
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Re: Black to Play and Resign With a Sigh in 517 Mo  
« Reply #2 on: Jul 29th, 2006, 2:31pm »
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And to think that the reason in some of the black moves might be to get a mate in 123 instead of a mate in 45.  It is humanly impossible to comprehend.
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ThudnBlunder
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Re: Black to Play and Resign With a Sigh in 517 Mo  
« Reply #3 on: Jul 29th, 2006, 3:15pm »
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on Jul 25th, 2006, 12:15am, towr wrote:
But isn't it a draw anyway if no piece is capture after 50 moves?

Yes, when the first small tablebases were produced (by Ken Thompson, co-creator of C) the rules were changed to allow for these positions. But they were then changed back when it was realized that the chance of any of these pawnless endgames arising in real games is very small.
 
« Last Edit: Jul 29th, 2006, 3:32pm by ThudnBlunder » IP Logged

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