Author: Robert Hyatt
Date: 18:42:07 02/05/99
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On February 05, 1999 at 21:11:23, James Robertson wrote: >My program is losing too many half-points by 3rd repetition draws. How do other >programs detect these draws? > >Thanks! >James simplest approach is to save the hash signature after every move. In the search, compare the current hash signature to ones you have already found either earlier in the tree or in prior real moves. Duplicates mean repetition. You can save time by using the 50-move counter to control how far 'back' you look thru this list, and you can clear it out each time you make an irreversible move on the board...
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