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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