Author: Drexel,Michael
Date: 05:55:59 12/01/03
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On December 01, 2003 at 08:01:28, Gabor Szots wrote: >If an engine is unable to claim draw on repetition, then it is not a draw if the >opponent plays on. Not a draw even if the same position repeats 10 times. >If the GUI claims the draw, it is as if a spectator would have claimed it, >therefore invalid. According to this nearly all computer-computer games that ended in a draw by repetition are invalid. All chessbase native engines are of course not able to claim a draw correctly since it is the job of the GUI. SSDF ratinglist is invalid too since many games ended by a 3-fold repetition draw claim of the GUI. The simple solution is to declare all games with a 3-fold repetition draw. Who cares about the FIDE rules? This is computer chess. Michael > >It seems to me that Jonny did not recognize draw because it accepted Shredder's >next move. In this case Shredder was EXTREMELY LUCKY, but nothing illegal or >unethical happened. > >I think it is unimportant that the GUI claimed the draw only when the position >had in fact repeated 3 times. In a human tournament, if I make my move, STOP THE >CLOCK, and call the arbiter, my draw claim is still valid. But without the claim >of the player himself, NOT EVEN THE ARBITER has to right to declare a draw. This >is what saved Shredder. An unlucky blow for the Fritz team. > >Gábor
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