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Subject: Re: BUG in Shredder 9.1 - 50 move Rules

Author: Uri Blass

Date: 07:59:52 07/21/05

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On July 21, 2005 at 10:51:02, Steve Glanzfeld wrote:

>On July 21, 2005 at 09:52:07, Eduard Nemeth wrote:
>
>>Somit wird gegen Shredder 9.1 gewertet (wenn man sich nach Regeln hält ? :-)
>>und Shredder hat diese Partie dann verloren!
>>
>>Nicht wahr?
>
>I'm not sure. You may have noticed that there was a rule that progs have to
>provide X-FEN, in the Mainz Chess960 computer championship. Then, Shredder
>presented another format. What happened? The rule was immediatly changed to
>allow Shredder's format. Responsible AFAIK Ingo Althoefer.
>
>http://f51.parsimony.net/forum204700/messages/60.htm
>
>When Shredder thinks the 100th ply after 99 plies compliant with the 50 move
>rule can be a pawn move and still it's a draw, who knows? Maybe organizers will
>tolerate that as well and ignore the old FIDE rules.

There is a big difference.

different notation does not change the result of the game.
claiming a draw after 99 plies by making a pawn move changes the result of the
game.

Uri



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