Author: Jouni Uski
Date: 12:11:21 01/27/06
Go up one level in this thread
On January 27, 2006 at 14:09:22, George Tsavdaris wrote: >On January 27, 2006 at 13:49:15, G. R. Morton wrote: > >>On January 27, 2006 at 12:27:46, Jouni Uski wrote: >> >>> >>>8/7p/8/p4p2/5K2/Bpk3P1/4P2P/8 w - - 0 1 >>> >>>1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ >>> ± (1.25) Depth: 17 00:00:26 2132kN >>>1.g4 fxg4 2.e4 Kc4 3.Kxg4 Kb5 4.Kg5 Ka4 5.Bc1 Kb5 6.e5 a4 7.e6 Kc6 >>> +- (4.09) Depth: 17 00:00:59 6451kN >>>1.g4 fxg4 2.e4 Kc4 3.Kxg4 Kb5 4.Kg5 Ka4 5.Bc1 Kb4 6.e5 a4 7.e6 a3 >>> +- (5.33) Depth: 18 00:01:06 8045kN >>> >>>I have one CD = 700 MB tablebases. >>> >>>Jouni >> >>Very interesting, it's endgame positions like these that make even the best >>engines look so dumb - a human sub-expert can easily see that g4 is the tempo >>move. However, Shredder 8 has no problem here. Presumably Rybka versions will >>eventually find quickly such endgame moves. >> >Do you want more quickly than 59 seconds.....? :-) Then Shredder 9.1 UCI: 1.g4 ± (0.82) Depth: 13/29 00:00:01 234kN, tb=49 1.g4 ± (1.17) Depth: 13/29 00:00:01 247kN, tb=50 1.g4 fxg4 2.e4 a4 3.e5 b2 ± (1.17) Depth: 13/29 00:00:01 267kN, tb=55 1.g4 fxg4 +- (1.42) Depth: 14/29 00:00:01 341kN, tb=82 1.g4 fxg4 2.e4 a4 3.e5 b2 4.Bxb2+ Kxb2 5.e6 a3 6.e7 a2 7.e8Q a1Q 8.Qh8+ Kb1 9.Qxa1+ Kxa1 10.Kxg4 Kb2 +- (1.46) Depth: 14/30 00:00:01 372kN, tb=83 1.g4 fxg4 2.e4 a4 3.e5 b2 4.Bxb2+ Kxb2 5.e6 a3 6.e7 a2 7.e8Q a1Q 8.Qh8+ Kb1 9.Qxa1+ Kxa1 10.Kxg4 Kb2 11.h4 ± (1.37) Depth: 15/34 00:00:01 535kN, tb=140 1.g4 fxg4 ± (1.12) Depth: 16/34 00:00:02 786kN, tb=227 1.g4 fxg4 2.e4 a4 3.e5 b2 4.Bxb2+ Kxb2 5.e6 a3 6.e7 a2 7.e8Q a1Q 8.Qh8+ Kb1 9.Qxa1+ Kxa1 10.Kxg4 Kb2 11.h4 Kc3 ± (1.12) Depth: 16/35 00:00:02 835kN, tb=291 1.g4 fxg4 2.e4 a4 3.e5 b2 4.Bxb2+ Kxb2 5.e6 a3 6.e7 a2 7.e8Q a1Q 8.Qh8+ Kb1 9.Qxa1+ Kxa1 10.Kxg4 Kb2 11.h4 Kc3 12.Kg5 ± (1.06) Depth: 17/37 00:00:02 1339kN, tb=541 1.g4 fxg4 ± (1.31) Depth: 18/39 00:00:04 1902kN, tb=883 1.g4 fxg4 2.e4 a4 3.e5 b2 4.Bxb2+ Kxb2 5.e6 g3 6.hxg3 a3 7.e7 a2 8.e8Q a1Q 9.Qh8+ +- (1.80) Depth: 18/39 00:00:05 2260kN, tb=1139 1.g4 fxg4 +- (2.05) Depth: 19/41 00:00:07 3139kN, tb=1949 1.g4 fxg4 +- (2.55) Depth: 19/42 00:00:08 3434kN, tb=2030 1.g4 fxg4 2.e4 Kd4 3.e5 Kd5 4.Kf5 +- (6.05) Depth: 19/42 00:00:12 4726kN, tb=3340 Jouni
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