Computer Chess Club Archives




Subject: Re: mate threat extension/null move

Author: Rick Bischoff

Date: 10:39:01 09/26/04

Go up one level in this thread

Good point.  :-(

>This just shows that Crafty does *not* do what the code extract you posted since
>that returned beta when value >= beta. Crafty returns value, the other returns
>beta. In terms of cutoff there's no difference but it means that you can't use
>the score for anything other than cutoff purposes.
>Now, the full code your engine may be returning value elsewhere but my guess is
>that if you return beta (or alpha) in one place, you do it in others too.

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