Author: William Bryant
Date: 14:22:13 12/08/99
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>Correct. Here is the mother of all positions to test hashing on, from >Fine's "Basic Chess Endings" position number 70: > > >/k/3p/p2P1p/P2P1P///K/ w > >if hashing works, you will get to 30 plies instantly. If it doesn't, you >won't get to 15. > > >> _instantly_? As I have "improved" my move ordering my responst to this test hash slowed somewhat. I get to 18 plies "instantly" (less than 1 second"), 23 plies by 33 seconds, 24 plies by 55 seconds, and find the answer at a depth of 24 plies in 125 seconds. It takes me nine minutes to actually get to 30 plies. My hash table is a simple one, not a always replace/never replace scheme you use. Does this double buffered system make that much difference. William wbryant@ix.netcom.com
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