Author: Gerd Isenberg
Date: 13:30:08 02/26/04
Go up one level in this thread
What is wrong with using left/right- and vertical/color-mirrored dependent
zobrist keys, to improve the hit rate in rather symmetric post-castling
positions?
eg.:
uint64 MirrorLeftRight(uint64 hashkey) {
return hashkey ^ randConstMirrorLeftRight;}
uint64 MirrorVerticallyAndColor(uint64 hashkey) {
return hashkey ^ randConstMirrorVerColor;}
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