Author: Nathan Thom
Date: 16:00:07 04/15/03
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On April 15, 2003 at 10:23:01, Vincent Diepeveen wrote: >On April 15, 2003 at 08:03:36, Nathan Thom wrote: > >>My engine is giving me headaches :) Its performing pretty badly against test >>positions (even thought it can beat me!). I have concerns over the following >>statistics: >> >>1. The PVS search success ratio seems extremely high, of 180k attempts, only 9 >>fail (ie value > alpha && value < beta). >> >>2. When writing to the hash table, of 50k writes 40k are lower bounds, 10k upper >>bounds, 20 exact. >> >>Does anyone else have any statistics for what I should be getting, or any >>suggestions where to look for errors??? > >what position and depth did you test? For these particular numbers i used [D]4r1r1/bB4p1/8/2p1kPKn/n7/3R4/3P4/2B5 w and searched to a depth of around 6 or 7 i think.
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