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Subject: Re: mate threat extension/null move

Author: Zach Wegner

Date: 13:08:10 09/25/04

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>But doesn't returning -MATE+ply from search() mean that the program
>might postpone making a mate since it is not returning -MATE+depth
>and so the ply is increasing and so more credit for deeper mates
>whereas depth is decreasing so more credit for more shallow mates?
>
>Stuart

No, because we want the value to be smaller for being mated closer (it is worse
to be mated sooner). From the other side's point of view, the score is MATE -
ply. We want ply to be smallest (close to the root) so that this value is closer
to mate.

Zach



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