Author: Uri Blass
Date: 07:58:50 05/23/04
I guess that crafty does not have the same position more than once in its book but the same position can happen in many games and I do not see where it removes doubles. I guess that the steps for building a book: 1)building a book based on games when the same position may appear a lot of times. 2)Sorting the book so the positions are ordered by lexisographic order. 3)deleting double from the book 4)copying the book that remains to a file. What function in Crafty is responsible for 3? Maybe qsort already delete doubles but it is not clear and I think it is may be possible to sort 2 3 4 1 3 as 1 2 3 3 4 and not as 1 2 3 4. Uri
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