Author: leonid
Date: 15:34:11 02/17/02
Go up one level in this thread
On February 17, 2002 at 17:06:01, Angrim wrote: >On February 17, 2002 at 15:26:29, leonid wrote: > >>[D]B2R3B/2qrq3/PqNkNqRq/b6P/R1qrQ2q/P1Q1n2P/b1nNq2p/Q6K w - - >> >>Please indicate your result. >> >>Thanks, >>Leonid. > >pn-search on Athlon 1.2ghz: >proved that move e4e5 wins, 9 turns >PN:199372 evals, 6835 expands, 0.98 seconds > >pn^2 search same comp: >proved that move e4e5 wins, 9 turns >PN2:1408934 evals, 53176 expands, 7.80 seconds Time is excellent but I am not sure about 9 turns. This positions is mate in 10 moves. By selective LLchess find mate in 5 seconds. Celeron 600Mhz. No hash. Leonid. >my current pn2 implementation doesn't work very fast for such >trivial mates, as it is optimized for long searches. >The first 610k evals were done before it got around to even >looking at the move e4e5. > >Angrim
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