Author: Roman Hartmann
Date: 11:21:51 08/26/05
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On August 26, 2005 at 13:39:24, Robert Hyatt wrote: >On August 26, 2005 at 08:26:45, Roman Hartmann wrote: > >>On August 26, 2005 at 07:52:31, Gopikrishna wrote: >> >>>I would like to know what other types of board techniques are there other than >>>8x10 array type used in tscp, 0x88 used in gerbil and bitboards used in some >>>programs. If possible the respective programs using it will also be fine. >>>Thanks. >> >>10x12 array which was already proposed by Shannon. Minimax.c from Chrilly >>Donninger uses also a 10x12 board representation and my own engine Roce as well. >> >>Roman > > >I'd personally use 0x88 if I were using an array. 10x12 has some efficiency >issues that 0x88 eliminates. I used 10x12 in Cray Blitz, but for reasons >dealing with pre-fetching squares on vector hardware... Unfortunately I didn't knew that when I started. I learnt just recently how 0x88 works and I might switch to it if I ever find the time/motivation to start a new move generator. It's hard to switch if you have something working which is reasonable fast. Roman
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