Author: Robert Hyatt
Date: 08:35:20 05/26/02
Go up one level in this thread
On May 25, 2002 at 13:01:10, Gian-Carlo Pascutto wrote: >On May 25, 2002 at 12:58:58, Russell Reagan wrote: > >>I realize that you have to calculate the occupation of the rank/file/diagonal, >>but calculating the occupation of the rank/file/diagonal involves ray tracing > >No > >You can do this with some shifting/anding > >-- >GCP And a table-lookup (rotated bitboards). That is the point of rotation, to avoid the "ray tracing" (all bitboards avoid this) or complex computation to find where rays are blocked (rotated bitboards avoid this).
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