Author: Volker Böhm
Date: 13:07:04 01/24/04
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On January 24, 2004 at 15:57:50, Mike Siler wrote: >In an average middlegame position, around 80-85% of the nodes my program >searches are quiesce nodes. I have a static exchange evaluator and I only search >captures with SEE value > 0. It seems like other engines are always under 25% >qnodes. What else should I be doing to reduce these numbers? > >Michael What do you count as quiesce node? Do you count a totally quiet horizont position a quiesce node? If yes, 80-85% is ok. Else you´ve got a bug. To reduce nodes in quiesce: 1. if static-eval > beta -> finished 2. if static-eval + piece-to-hit + bonus < alpha -> prune. that should be enough to reduce nodes to 25% if not searching "bad SEE hits" P.S. search if SEE == 0 too Greetings
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