Author: Uri Blass
Date: 07:56:54 09/06/02
Go up one level in this thread
On September 06, 2002 at 07:23:15, Yuriy Lyapko wrote: >Which chess engine will see that Rb1 is winning in this position? > >[D] b4bk1/p2p4/p1p1p2p/P1P1Pp1P/3P3p/2N4N/1r3PP1/4R1K1 w - - > >Best regards, >George Movei0076 can see a small advantage for white with Rb1(p850,32 Mbytes hash) in less than 10 minutes. I imagine that stronger engines can find it faster. scores at the last iterations(from white point of view): 10 Rb1 -0.14 11 Rb1 0.01 12 Rb1 -0.10 12 Nf4 0.01 13 Nf4 0.03 14 Nf4 0.06 15 Nf4 0.09 15 Rb1 0.28 16 Rb1 0.38 17 Rb1 0.39 debug file of the last iterations 26690 <first : 11 1 1862 3196231 e1b1 b2b7 b1a1 b7b4 c3e2 f8e7 f2f3 g8f7 g1f2 b4b2 f2e3 32960 <first : 11 1 2489 4230954 e1b1 b2b7 b1a1 b7b4 c3e2 f8e7 f2f3 g8f7 g1f2 b4b2 f2e3 38720 <first : 12 -10 3065 5232932 e1b1 b2b7 b1a1 b7b4 c3e2 a8b7 h3f4 f8e7 g1f1 g8f7 f4d3 b4b3 43560 <first : 12 -9 3549 6069001 h3f4 59210 <first : 12 1 5114 8756674 h3f4 g8f7 f4g6 f8e7 g6e7 f7e7 e1b1 b2c2 b1b3 f5f4 c3e4 c2c1 g1h2 c1c2 67610 <first : 12 1 5954 10232964 h3f4 g8f7 f4g6 f8e7 g6e7 f7e7 e1b1 b2c2 b1b3 f5f4 c3e4 c2c1 g1h2 c1c2 92770 <first : 13 3 8470 14360321 h3f4 g8f7 f4g6 f8e7 g6e7 f7e7 e1b1 b2c2 b1b3 c2c1 g1h2 c1c2 f2f4 c2d2 b3b8 120180 <first : 13 3 11211 19117161 h3f4 g8f7 f4g6 f8e7 g6e7 f7e7 e1b1 b2c2 b1b3 c2c1 g1h2 c1c2 f2f4 c2d2 b3b8 194770 <first : 14 6 18670 31127474 h3f4 g8f7 f4g6 f8e7 g6e7 f7e7 e1b1 b2c2 b1b3 c2c1 g1h2 c1c2 h2h3 c2f2 b3b8 f2c2 b8a8 c2c3 h3h4 246560 <first : 14 6 23849 39600759 h3f4 g8f7 f4g6 f8e7 g6e7 f7e7 e1b1 b2c2 b1b3 c2c1 g1h2 c1c2 h2h3 c2f2 b3b8 f2c2 b8a8 c2c3 h3h4 519870 <first : 15 9 51180 84420162 h3f4 g8f7 f4g6 b2c2 e1b1 c2c3 b1b8 f8e7 b8a8 c3d3 a8a7 d3d4 g6e7 d4d1 g1h2 f7e7 a7a6 549200 <first : 15 10 54113 89629755 e1b1 598690 <first : 15 28 59062 98273594 e1b1 b2b7 b1b7 a8b7 c3d1 f8e7 d1e3 e7d8 e3c4 d8e7 g1f1 g8h7 f1e2 h7g7 h3f4 g7f7 636040 <first : 15 28 62797 104223230 e1b1 b2b7 b1b7 a8b7 c3d1 f8e7 d1e3 e7d8 e3c4 d8e7 g1f1 g8h7 f1e2 h7g7 h3f4 g7f7 703930 <first : 16 38 69586 116541501 e1b1 b2b7 b1b7 a8b7 c3d1 f8e7 d1e3 e7d8 e3c4 d8e7 g1f1 b7a8 h3f4 e7g5 f4g6 g8f7 c4d6 f7g7 746160 <first : 16 38 73809 123235257 e1b1 b2b7 b1b7 a8b7 c3d1 f8e7 d1e3 e7d8 e3c4 d8e7 g1f1 b7a8 h3f4 e7g5 f4g6 g8f7 c4d6 f7g7 909730 <first : 17 39 90166 152019119 e1b1 b2b7 b1b7 a8b7 c3d1 f8e7 d1e3 g8g7 g1f1 g7h8 f1e2 h8g8 e3c4 g8g7 e2d2 g7f7 d2d3 f7g7 1006450 <first : 17 39 99838 167881595 e1b1 b2b7 b1b7 a8b7 c3d1 f8e7 d1e3 g8g7 g1f1 g7h8 f1e2 h8g8 e3c4 g8g7 e2d2 g7f7 d2d3 f7g7 Uri
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