Author: Jonathan Goldstein
Date: 18:59:17 07/08/99
After experimenting with board representaions for a few months, I found a representaion in which the move generator is slightly slower than rotated bitboards in the middlegame, but factors of 2 to 5 faster in the endgame (on a 32-bit processor). I decided to go with this representation, but it does have one drawback: Each side cannot have more than 8 of any piece. Is this a problem for normal (not wild) chess? At first I thought it couldn't possibly be, but then I considered if the engine ever gets fast enough to search 15 ply, and one of the extensions has the eighth pawn promoted, it could happen. Am I just being rediculous? :) -Jon
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