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Subject: Re: The key of pawn hash tables is based on what exactly?

Author: Will Singleton

Date: 11:02:25 09/06/03

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On September 06, 2003 at 13:47:24, Uri Blass wrote:

>pawns are obvious but the question is if you store also
>1)side to move
>2)king squares
>
>both 1 and 2 may be important for evaluation of unstoppable passed pawns.
>
>Uri

I modify the key based on king positions, endgame status, and total material.  I
don't need side-to-move because promos are handled outside of pawn hash.  I
recently added the material, slows it doen a bit but I think it's more correct
for evaluating passers.

Will



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