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Subject: Re: draw recognition and hash interactions

Author: Rafael Andrist

Date: 11:54:39 07/18/01

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On July 18, 2001 at 08:09:15, Marcus Heidkamp wrote:

>I do store draw scores into the hash table, except for draw by repetition. Thus
>material draw, draws from TB hits, and stalemates are hashed.
>
>Marcus

You can also - without any problems - store draws by repetition if the position
already occured twice in the game. (Of course all draws can be stored, but it
needs some additional handling.)
I would recommend to store not a zero score but a 0.01 if the draw is a TB hit
and you're up in material, because a win may be still possible if the opponent
makes misstakes.

Rafael B. Andrist



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