Author: Heiner Marxen
Date: 15:58:08 07/31/01
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On July 31, 2001 at 15:16:35, Angrim wrote: >On July 31, 2001 at 14:07:42, leonid wrote: > >>Hi! >> >>This position contain few heavy pieces and should be solvable by every program. >> >>[D]Rn1rk2r/QB4pN/1pn4p/pN2q1Pb/2P1p3/2p1P1Bq/P4Q1b/1K1R4 w - - >> >>Please indicate your result. >> >>Thanks, >>Leonid. > >useing pn^2 on an Athlon 650mhz: > >proved that move b7xc6 wins, 10 turns >PN2:4021544 evals, 180919 expands, 23.27 seconds > >Angrim According to Chest your move is the unique key move for a mate in 9 moves: PV: Bxc6+ Nxc6 Rdxd8+ Nxd8 Nc7+ Qxc7 Qxc7 Qd7 Qxd7+ Kxd7 Qf5+ Ne6 Ra7+ Kd8 Qd5+ Ke8 Qd7# Needed 15.6 minutes on a K7/600 with 350 MB hash. pn^2 appears to be quite a good mate finding method. Cheers, Heiner
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