Author: David Dory
Date: 18:12:35 05/11/02
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Vince wrote: >>Bitboards is a tradeoff. You put less information into >>a single 64 bits word. So you can use instructions like AND and OR >>more easily. >>Gnuchess is putting more information into a single word for each >>square. The advantage is you can faster work with complex knowledge. You wrote: >So in short it means, bitboard helps put more information (==more knowledge)in >single square (64 bits?), if that is what I understand. You have it exactly backward. Bitboards put less info than the design used by Gnuchess 4, but they are faster, and you have the opportunity to be quite creative with their use, without a big penalty in speed. Dave
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