Author: Robert Hyatt
Date: 14:36:26 10/01/01
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On October 01, 2001 at 16:55:21, Alvaro Jose Povoa Cardoso wrote: >I know this question was probably made many times, but I wasn't listening :) >Could someone please explain in detail the Crafty openings book binary format? >Does it represent positions and not moves? > >Best regards, >Alvaro Cardoso Yes. It is essentially hash signatures produced by making moves and then updating the hash signature after each move and storing it. It uses a cute "grouping" scheme so that all the signatures that share a common "parent" position are lumped together in the book file so that one I/O operation will read in all possible book moves for any position.
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