Author: Thorsten Greiner
Date: 04:38:54 04/07/04
Go up one level in this thread
>I have two counters for calculating my hashkey-collisions: > hashmove_requested: every time I have a hashmove and I am going to check > whether it is a legal move. > hashmove_illegal: suggested hashmove from the TT was not legal, and > therefore a hashkey collision has to be occured. > >100*((double)hashmove_illegal/hashmove_requested) gives my number... 0.03 Your algorithm to determine hash collisions seems ok, iff you - hash the side to move into the hashkey - OR use separate hash tables for white and black - AND don't count null moves as illegal moves (if you store them)
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