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Subject: Re: Shredder wins in Graz after controversy

Author: Gian-Carlo Pascutto

Date: 06:49:47 12/09/03

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On December 09, 2003 at 09:25:55, Sune Fischer wrote:

>I think the logic is quite clear, Jonny lost on purpose because he didn't feel
>Shredder should lose the WCCC due to a silly bug:
>
>"Apparently the Shredder interface contained a bug which allowed it to repeat
>postitions in a totally winning position. The program Jonny had seen this and
>claimed the draw (while displaying a 0.00 score). But as Johannes Zwanzger >later said on the Playchess.com server: "I did not want to draw the game in
>this way against Stefan, just because his program has a bug." So he had simply
>executed the move on the board, entered Shredder's reply and continued with
>the game."
>
>So basicly "Jonny" (the engine) saw Shredder had bugged out and instantly
>punished it by going for the repetition.

Your version of the facts is wrong on several accounts:

1) The bug was not in the Shredder interface or if it was, that wasn't
critical since it's the engine that repeated the position, not the interface.

2) The engine Jonny had not claimed a draw (it didn't know about 3 fold
repetition), only the ChessBase GUI that Mr. Zwanzger was using informed
that the position was repeated 3 times.

--
GCP



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