Author: Tom Kerrigan
Date: 04:33:13 01/08/00
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On January 07, 2000 at 00:35:03, Michael Neish wrote: >I did a bit of detective work and I found that in the position >I'm looking at, about 75% of the nodes searched are captures in I think 75% is probably not so bad... >quite a bit. You mentioned the Swap() routine in Crafty which >simply trades off pieces attacking a particular square. Can >this be used to good effect in the quiescence search routine? Yes. That function is usually called a "Static Exchange Evaluator" (SEE). If it tells you that a capture will lose material, you can usually [safely] ignore it in the quiescence search. >If so, how do you handle the fact that in a sequence of >captures one capture may occur on one square and the next one >on another square? You can ignore that fact. It's just for move ordering. Not really that big a deal. -Tom
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