Author: Dann Corbit
Date: 13:46:33 09/18/01
Go up one level in this thread
On September 18, 2001 at 16:42:29, Steffen Jakob wrote: >On September 18, 2001 at 13:44:33, Janosch Zwerensky wrote: > >>Hi everyone, >> >>I don't expect that currently any program can solve one of these problems given >>less than weeks of reflection time, but I'd like to know anyway what different >>progs say: >> >>[D] 8/8/8/5Bp1/7k/7P/4pPK1/8 b - - 0 1 >> >>Here, 1. ... g4 is the only way for black to win, since everything else (except >>for 1. ... e1N, which obviously doesn't win) leaves white with the possibility >>of responding with 2.Bg4! which permanently locks up black's king and thus >>secures the draw. >>Does any program find 1. ... g4! within a reasonable amount of time? > >Hossa 1.135 with very experimental blocked position detection enabled: > > depth value time nodes pv > 1 +7.33 0.01 2 1... e2e1Q > <1> +7.33 0.01 15 1... e2e1Q >? 2 +6.74 0.01 92 1... e2e1Q 2.f5g6 >? <2> +6.74 0.02 140 1... e2e1Q 2.f5g6 > 3 +6.74 0.02 157 1... e2e1Q 2.f5g6 > <3> +6.74 0.02 226 1... e2e1Q 2.f5g6 > 4 +6.78 0.03 305 1... e2e1Q 2.f5g6 e1d1 > <4> +6.78 0.03 422 1... e2e1Q 2.f5g6 e1d1 > 5 +6.81 0.04 792 1... e2e1Q 2.f5g4 e1e4 3.g4f3 > <5> +6.81 0.04 1038 1... e2e1Q 2.f5g4 e1e4 3.g4f3 > 6 +6.89 0.05 1226 1... e2e1Q 2.f5g4 e1e4 3.g4f3 e4e1 > <6> +6.89 0.06 1624 1... e2e1Q 2.f5g4 e1e4 3.g4f3 e4e1 > 7 +6.89 0.09 2449 1... e2e1Q 2.f5g4 e1e4 3.g4f3 e4e1 > <7> +6.89 0.11 2999 1... e2e1Q 2.f5g4 e1e4 3.g4f3 e4e1 >? 8 +0.43 0.15 5554 1... e2e1Q 2.f5g4 e1e4 3.Kh2 e4xg4 > 4.h3xg4 Kxg4 >? 4/8 +1.27 0.34 17308 1... e2e1R 2.f5g4 e1b1 3.g4f5 b1b3 > 4.f5g4 b3d3 >? 5/8 +4.74 0.63 33456 1... g4 2.f5xg4 e2e1Q 3.Kf3 Kg5 > 4.g4d7 >? <8> +4.74 0.63 33480 1... g4 2.f5xg4 e2e1Q 3.Kf3 Kg5 > 4.g4d7 > 9 +4.87 0.75 40259 1... g4 2.h3xg4 e2e1Q 3.f5d3 e1d1 > 4.d3f5 d1e2 >! 9 +6.32 0.81 44280 1... e2e1Q 2.f5g4 e1c1 3.g4e2 c1c8 > 4.e2g4 >! <9> +6.32 0.82 44879 1... e2e1Q 2.f5g4 e1c1 3.g4e2 c1c8 > 4.e2g4 >? 10 +4.99 1.10 61290 1... e2e1Q 2.f5g4 e1c1 3.g4f3 g4 > 4.h3xg4 c1e1 >? <10> +4.99 1.21 71654 1... e2e1Q 2.f5g4 e1c1 3.g4f3 g4 > 4.h3xg4 c1e1 > 4/11 +4.70 2.03 122843 1... g4 2.h3xg4 e2e1Q 3.g5 e1e5 > 4.f5h3 e5e4 5.f3 > <11> +4.70 2.08 127847 1... g4 2.h3xg4 e2e1Q 3.g5 e1e5 > 4.f5h3 e5e4 5.f3 > 12 +4.97 2.78 171388 1... g4 2.h3xg4 e2e1Q 3.Kf3 Kg5 > 4.Kg3 Kf6 5.Kf4 e1d2 6.Kf3 > <12> +4.97 3.51 233598 1... g4 2.h3xg4 e2e1Q 3.Kf3 Kg5 > 4.Kg3 Kf6 5.Kf4 e1d2 6.Kf3 > 13 +4.82 4.47 295652 1... g4 2.f5xg4 e2e1Q 3.g4f3 e1e6 > 4.f3g4 e6d5 5.g4f3 d5d2 6.f3e4 > 3/13 +4.87 6.73 469716 1... e2e1Q 2.f5g4 e1c1 3.g4e2 g4 > 4.h3xg4 c1b2 5.Kf3 Kg5 > <13> +4.87 6.93 487909 1... e2e1Q 2.f5g4 e1c1 3.g4e2 g4 > 4.h3xg4 c1b2 5.Kf3 Kg5 > 14 +4.79 7.46 523508 1... e2e1Q 2.f5g4 e1c1 3.g4e2 g4 > 4.h3xg4 c1e1 5.Kf3 Kg5 6.e2b5 > 2/14 +4.86 10.96 753968 1... g4 2.f5xg4 e2e1Q 3.g4f3 e1d2 > 4.f3c6 d2g5 5.Kh2 g5f4 6.Kg2 Kg5 > <14> +4.86 14.39 1052985 1... g4 2.f5xg4 e2e1Q 3.g4f3 e1d2 > 4.f3c6 d2g5 5.Kh2 g5f4 6.Kg2 Kg5 > 15 +4.97 18.38 1331167 1... g4 2.h3xg4 e2e1Q 3.Kf3 Kg5 > 4.Kg3 Kf6 5.Kf3 e1d1 6.Kf4 d1d2 > <15> +4.97 27.13 2091872 1... g4 2.h3xg4 e2e1Q 3.Kf3 Kg5 > 4.Kg3 Kf6 5.Kf3 e1d1 6.Kf4 d1d2 > 16 +4.96 38.43 2878557 1... g4 2.f5xg4 e2e1Q 3.g4f3 Kg5 > 4.f3b7 Kf4 5.h4 e1e7 6.b7d5 e7e1 > <16> +4.96 1:12 5770815 1... g4 2.f5xg4 e2e1Q 3.g4f3 Kg5 > 4.f3b7 Kf4 5.h4 e1e7 6.b7d5 e7e1 Incredible result! How about WAC.230?
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