Author: James T. Walker
Date: 10:26:33 10/28/01
Go up one level in this thread
On October 28, 2001 at 12:11:29, Uri Blass wrote: >On October 28, 2001 at 12:04:13, James T. Walker wrote: > >>Here is what Crafty 18.12 says: >> >>[D]3k4/8/1p3K2/8/4P1p1/6P1/7P/8 b - - 0 1 >> >>Analysis by Crafty 18.12: >> >>1...Kd7 2.e5 >> ² (0.53) Depth: 1/2 00:00:01 >> ± (0.96) Depth: 2/2 00:00:01 >>1...b5 2.Ke5 Kc7 3.Kd5 Kb6 4.e5 b4 >> ² (0.54) Depth: 2/2 00:00:01 >> ² (0.66) Depth: 7/10 00:00:01 4kN >>1...Kc7 2.e5 b5 3.e6 b4 4.e7 Kd7 5.Kf7 b3 6.e8Q+ >> ² (0.46) Depth: 7/10 00:00:01 7kN >> +- (9.10) Depth: 8/12 00:00:01 16kN, tb=1 >>1...b5 2.Kf7 b4 3.e5 >> ± (1.39) Depth: 8/12 00:00:01 26kN, tb=1 >>1...Kd7 2.Kf7 Kd6 3.Kf6 Kd7 >> ± (1.03) Depth: 8/12 00:00:01 32kN, tb=6 >> = (0.00) Depth: 11/17 00:00:01 106kN, tb=58 >>1...Ke8 2.Ke6 b5 3.Kd5 b4 4.Kc4 >> = (-0.15) Depth: 11/17 00:00:01 132kN, tb=68 >> +- (2.64) Depth: 12/19 00:00:01 259kN, tb=151 >>1...Kd7 2.e5 Ke8 3.Ke6 b5 4.Kd5 Kf7 5.Kc5 Ke6 6.Kxb5 Kd5 7.e6 Kd6 8.Kc4 Ke7 >>9.Kd5 >> = (0.00) Depth: 12/19 00:00:01 333kN, tb=251 >> +- (3.79) Depth: 16/27 00:00:35 29779kN, tb=2526 >>1...b5 2.Ke5 Kc7 3.Kd5 Kb6 4.e5 b4 5.e6 Kc7 6.Kc4 Kd6 7.Kxb4 Kxe6 >> +- (3.23) Depth: 16/27 00:00:38 32507kN, tb=3093 >> +- (#30) Depth: 23/45 00:04:23 227633kN, tb=40595 >> >>I believe the mate in 30 is correct. > >Note that my yace did not use all the tablebases(it used the important KPP vs KP >but it did not use other tablebases that may be important(for example KPPP vs K) > >Uri Hello Uri, I gave the position to Chess Tiger 14 and it says after 1... Kd7 it is mate in 23. So I made the move 1....b5 and Chess Tiger again says mate in 23 so I guess the mate in 30 is not correct either. I have all 3/4/5 man tablebases. Jim
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