Author: Robert Hyatt
Date: 20:56:58 12/08/01
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On December 08, 2001 at 05:21:33, Sune Fischer wrote: >On December 07, 2001 at 23:52:37, Robert Hyatt wrote: > >Bob, I can tell you, that if you do not have more than 77000 pawn positions and >still get collisions, then you do have a bug. > >-S. For the tests I ran I had a _lot_ more than 77000 pawn positions. I used a hash size of 6M, and it was filled quite quickly. Remember that I didn't just search a single position. I annotated a full game. I don't see any way for a bug to exist here. The PRN's are known to be good, hamming-distance-wise, and I always run "validate" tests on everything for each new version. That takes that incremental signature and compares it to a "computed-from-scratch" signature to make sure they match and catch any errors in the incremental update code (among other things)...
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