Author: James Robertson
Date: 23:20:13 08/28/98
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On August 29, 1998 at 00:30:44, David Eppstein wrote: >On August 28, 1998 at 18:06:49, Robert Hyatt wrote: >>On August 28, 1998 at 16:50:31, David Eppstein wrote: >>>I think this power of two thing is a red herring. Even for an 8x8 board you >>>have to mask so your pieces don't think they can wrap around from one side >>>of the board to the other. >>You really don't have to do this... IE I have *no* such masks in Crafty. > >Oh no? >What is this: > >(line 167 of movgen.c) > pcapturesr=And(Shiftr(And(WhitePawns,mask_right_edge),9),target); > >If it's not a mask, why do you call it mask_right_edge? I think Mr. Hyatt was talking about *precomputed* attack data, i.e. Bishops and Queens.
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