Author: Hugh Cumper
Date: 17:37:45 07/19/00
The chess programs I have seen evaluate every position as if the pieces had just been set up that way. Humans do not work like that nad I see no reason why programs should. Most of the work in an evaluation function relates to individual pieces - its value, whether the square it is on is in general a good one for that rype of piece; or a small cluster of pieces - whether a pawn is isolated, doubled etc. Most moves do not change these things for an arbitrarily chosen piece so why work it all out again each time? The evaluation functions could be distributed around the move generation and search code which would maintain running totals. This would require a form of evaluation to be performed at all nodes not just terminal ones but overall it would be more efficient. Has anyone done this, or can someone explain why?
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