Author: Heiner Marxen
Date: 08:20:21 01/12/02
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On January 12, 2002 at 09:47:09, leonid wrote: >[D]KnqqkqnQ/1QqrrqQ1/2QqqQ2/1bBNNBb1/1Q4Q1/P6P/2p2p2/3RR3 w - - > >Please indicate your result. > >Thanks, >Leonid. This one is "easy" for Chest. After 4.3 minutes it announces two solutions in 10 moves: PV: Nxc7+ Qcxc7 Qxf8+ Kxf8 Qxg8+ Kxg8 Qgxg5+ Qg7 Qgxg7+ Rxg7 Bxe6+ Rdf7 Bxf7+ Qxf7 Qbxf7+ Rxf7 Qg2+ Rg7 Qfxg7# PV: Qxf8+ Kxf8 Qxg8+ Kxg8 Qgxg5+ Qg7 Bxe6+ Rxe6 Qxe6+ Qxe6 Qxe6+ Kh8 Qbh4+ Qh7 Ng6+ Kg7 Nf8+ Qg6 Qgxg6# EBF is very good this time, and the hash table appears to be very important for this problem: # 3 0.02s [ 2.00] 1kN [ 9.86] 0.94 95- 0 # 4 0.11s [ 5.50] 6kN [ 6.44] 1.03 729- 0 # 5 0.48s [ 4.36] 29kN [ 4.57] 1.23 3504- 0 # 6 2.28s [ 4.75] 129kN [ 4.40] 4.38 15765- 0 # 7 7.41s [ 3.25] 413kN [ 3.20] 13.02 50036- 0 # 8 21.06s [ 2.84] 1195kN [ 2.89] 25.65 137982- 0 # 9 78.95s [ 3.75] 4625kN [ 3.87] 27.37 501489- 0 # 10 258.99s [ 3.28] 16220kN [ 3.51] 24.70 1453974- 3 Cheers, Heiner
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