Author: Heiner Marxen
Date: 10:33:09 02/09/02
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On February 09, 2002 at 07:43:38, leonid wrote: >[D]q6R/1kqqp3/1nNQNP2/1nRqq3/1bNrBP1K/1qQPr3/1PqPqB2/R6b w - - > >Please indicate your result. > >Thanks, >Leonid. According to Chest (Athlon/600, 350 MB hash, 6.5 min) this is a mate in 11 with a unique key move: PV: N6a5+ Ka7 Nxb3+ Na3 Rxc7+ Qxc7 Rxa3+ Kb7 Nca5+ Ka7 Nc6+ Kb7 Nec5+ Bxc5 Nxc5+ Qxc5 Nd8+ Kb8 Ne6+ Nc8 Rxa8# EBF is comfortably small here for Chest: # 1 0.00s 0kN 0.87 1- 0 # 2 0.01s 0kN 1.00 1- 0 # 3 0.02s [ 2.00] 1kN [ 9.35] 0.94 71- 0 # 4 0.09s [ 4.50] 4kN [ 5.99] 1.05 447- 0 # 5 0.37s [ 4.11] 19kN [ 4.31] 1.29 1902- 0 # 6 1.39s [ 3.76] 74kN [ 3.96] 2.73 7497- 0 # 7 5.13s [ 3.69] 277kN [ 3.75] 5.24 27198- 0 # 8 22.86s [ 4.46] 1299kN [ 4.70] 7.46 122710- 0 # 9 64.09s [ 2.80] 3583kN [ 2.76] 12.65 349381- 0 # 10 197.42s [ 3.08] 10942kN [ 3.05] 15.69 1120889- 1 # 11 387.71s [ 1.96] 20225kN [ 1.85] 21.85 2321211- 150 As often with your positions, my "anti" heuristics works great: in 67.22% of the cases the defender mates the attacker (in 1). Cheers, Heiner
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