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Subject: Re: Move table

Author: Will Singleton

Date: 11:45:52 01/12/99

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On January 12, 1999 at 12:55:53, Bruce Moreland wrote:

>
>On January 12, 1999 at 09:39:16, KarinsDad wrote:
>
>>On January 12, 1999 at 04:16:39, Bruce Moreland wrote:
>
>>>For example, one component of my eval is piece-square tables.  If you want to
>>>incrementally keep track of the positional value, you'd normally subtract out
>>>the value of the "from" square and add in the value of the "to" square, for a
>>>given piece and color.  I have the value right there in the table, so I can just
>>>add it in without calculating indexes.
>>
>>Now do you do this recursively on the stack or do you carry the piece-square
>>table around on your hash table?
>
>The current positional value is in a global variable.  I mess with it in
>"makemove" and I put it back in "unmakemove".
>
>bruce

Hmm, so if you incrementally update the positional value, as well as the
material value, what's left for the eval to do?

Will



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