Author: Matthias Gemuh
Date: 02:13:34 12/21/01
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On December 21, 2001 at 04:33:12, Matthias Gemuh wrote: > >Hi Experts, >my move ordering bad (about 75%). Can someone tell me how to SEE ? >Alternatively, where can I find information on how to SEE ? >Thanks, >Matthias. A search in CCC has revealed what Prof. Hyatt has/had to say: Static Exchange Evaluator... a procedure that looks at all possible captures on a specific square and returns a score based on the expected gain (or loss) of initiating the first move of the exchange sequence... used to order captures for one thing... and to cull outrageously losing captures for another... It can speed up the search by a factor of 2 or 3, assuming you aren't doing anything "good" about ordering your capture search yet. If you apply SEE to each capture, sort based on the score returned, the tree will shrink. If you toss out captures (in the q-search) where SEE returns a score < 0, you will get another big reduction... and if you use the SEE score to defer losing captures until after winning captures, hash move, even exchanges, history and killer moves, you will save even more time... -- END OF QUOTE -- Please, add more comments if you have any. Regards, Matthias.
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