Author: Alex Szabo
Date: 07:43:35 12/06/03
Go up one level in this thread
On December 06, 2003 at 04:05:24, Daniel Shawul wrote:
>hi
>
>here is my PVS code
>
> if(first move)
> score=-search(-beta,-alpha,depth-1);
> else
> {
> score=-search(-alpha-1,-alpha,depth-1);
> if(score>alpha && score<beta)
> score=-search(-score,-alpha,depth-1);
> }
>
>should i use (-beta,-alpha) when search fails instead of (-score,-alpha).
>can the algorithm handle search instablity correctly?
>
>regards
>daniel
I think you should use (-beta,-score). The zero-window search failed high
improving alpha.
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