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Subject: Re: passed pawn evaluation.

Author: Tord Romstad

Date: 10:39:35 01/12/04

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On January 12, 2004 at 10:24:59, scott farrell wrote:

>On January 12, 2004 at 05:52:07, Tord Romstad wrote:
>
>>Adjust the bonus up if there is a friendly rook behind the pawn, and down if
>>there is an enemy rook behind it.
>
>this is where you need to be careful if you have a pawnhash, you cant hash in
>other pieces :) you have to put it into the rook/king eval instead.

Of course.  In general it is a bad idea to store any kind of evaluation
in the pawn hash table, as pawn structure stuff always depends on where
the other pieces are located.  The only information about passed pawns
I store in the pawn hash table is the location of all the passed pawns
for both sides.

Tord



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