Author: Heiner Marxen
Date: 14:36:18 04/22/01
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On April 22, 2001 at 09:57:10, leonid wrote: >Hi! > >If you want to solve one mate and say your result, then this is the position: > >[D]2R2bNn/Rp1n1k1b/1q1ppB1p/1Np1p1p1/2P1P2P/3P2PB/4Q2K/8 w - - > >If you program says nodes/per/second, please indicate it for this position. According to Chest this is a mate in 7 moves, with 3 solutions: Bxe6+ Kxe6 Qg4+ Kf7 Qxd7+ Kg6 Qf5+ Kf7 Nxh6+ Bxh6 Rxb7+ =*= Nxd6# Qh5+ Bg6 Bxe6+ Kxe6 Qg4+ Bf5 Qxf5+ Kf7 Qh7+ Bg7 Qxg7+ Ke6 Re8# Rxf8+ Kxf8 Ra8+ Nb8 Rxb8+ Kf7 Qh5+ Bg6 Qxh6 Qd8 Nxd6+ Kxg8 Qxh8# On Athlon K7 600 MHz with 350MB hash: 950 seconds, 66,144 nodes/sec. Just for fun I tried this one also with hash table disabled. Timings: depth with without # 3 0.02 0.02 # 4 0.42 0.42 # 5 5.23 6.90 # 6 62.19 113.11 # 7 950.10 2285.93 Heiner
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