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Subject: Re: draw by repetition behaviour

Author: JW de Kort

Date: 05:20:32 06/01/01

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On May 31, 2001 at 09:14:58, Daniel Clausen wrote:

>Hi
>
>On May 31, 2001 at 09:04:04, Gian-Carlo Pascutto wrote:
>
>>On May 31, 2001 at 08:55:44, JW de Kort wrote:
>>
>>>Can anybody explain why this is happening?
>>
>>a) a bug  (very likely)
>>
>>b) a knowledge hole. Your evaluation function does not understand
>>the positions which are needed to convert the win, for example by
>>scoring them too low. Hence everything but the current position
>>looks worse. Your program will not want to lower its score and
>>hence plays shuffle chess.
>
>My guess is that (b) is more likely. At least it happens to my engine quite
>often. For example if you don't tell your engine that it's a good idea to push
>some pawns in the endgame, the engine will happily shuffle kings until
>draw-repetition-recognition sets in and your engine pushes a pawn in order to
>prevent the draw.
>
>Regards,
>
>Sargon


I have the same expierence as Sarogn. It is certainly not a bug.

Jan Willem



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