Author: Anthony Cozzie
Date: 16:30:35 03/22/04
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On March 22, 2004 at 17:18:49, Dann Corbit wrote: >On March 22, 2004 at 16:18:19, Anthony Cozzie wrote: > >>On March 22, 2004 at 03:40:57, Daniel Shawul wrote: >> >>>Hello >>> >>>I have decided to use attack tables. I just did >>>a rough implementation of it at the beginning of the eval >>>according to Ed's paper. The problem is the thing dropped the nodecount >>>by almost 40% . Initial position nodecount was 800000 and now it is 500000. >>>Do incremental move attack tables help? And how do i update the table? It seems >>>very difficult to update a sliding move and other special cases. >>> >>>thanks >>>daniel >> >>I have some code for incremental attack tables if you want it. However, it took >>Tord 4 months to figure out :) I don't use attack tables in Zappa; i wrote this >>when i was considering switching to a piecelist based engine. > >Is your code 0x88 or bitboard based? board[64]. Its based on Vincent's move generator. anthony
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