Author: Robert Hyatt
Date: 07:09:13 05/08/04
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On May 08, 2004 at 09:39:35, Pat King wrote: >On May 07, 2004 at 22:14:10, Robert Hyatt wrote: > > >>What I do is the leftmost 16 bits come from the position before the move, the >>rightmost 48 bits come from the position after the move. That makes all moves >>with the same parent position (the position before a book move is played) sort >>together in the final book file, which is important for performance... > >Ok, neat, but what about transpositions? Does a successor position with several >parents then have several entries? Yes. The positions are created from the games as they are read in... So the parent positions would be different producing multiple "book signatures"...
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