Author: G. R. Morton
Date: 10:49:15 01/27/06
Go up one level in this thread
On January 27, 2006 at 12:27:46, Jouni Uski wrote: >Same position with beta 12 and 13: > >[D] 8/7p/8/p4p2/5K2/Bpk3P1/4P2P/8 w - - 0 1 > >Analysis by Rybka 1.01 Beta 12 32-bit: > >1.Bd6 > -+ (-7.12) Depth: 3 00:00:00 >1.g4 > = (0.15) Depth: 3 00:00:00 >1.g4 > ³ (-0.42) Depth: 4 00:00:00 >1.g4 fxg4 > = (0.00) Depth: 5 00:00:00 >1.g4 fxg4 2.e4 > = (0.09) Depth: 6 00:00:00 13kN >1.g4 fxg4 2.e4 b2 3.Bxb2+ Kxb2 > ³ (-0.61) Depth: 7 00:00:00 13kN >1.g4 fxg4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 > ³ (-0.61) Depth: 8 00:00:00 17kN >1.g4 fxg4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a4 > -+ (-2.12) Depth: 9 00:00:00 29kN >1.g4 fxg4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a4 > -+ (-2.15) Depth: 10 00:00:00 57kN >1.g4 fxg4 > -+ (-2.33) Depth: 11 00:00:00 87kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 > ± (1.01) Depth: 11 00:00:01 111kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ > ± (1.06) Depth: 12 00:00:01 148kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ > ± (1.16) Depth: 13 00:00:01 227kN >1.Kxf5 b2 > ± (1.13) Depth: 14 00:00:02 377kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qd1 > ± (1.23) Depth: 15 00:00:05 801kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qd1 > ± (1.33) Depth: 16 00:00:10 1416kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qd1 > ± (1.34) Depth: 17 00:00:21 2568kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qd1 > ± (1.37) Depth: 18 00:00:47 5026kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qd1 > ± (1.34) Depth: 19 00:01:19 8364kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qd1 > ± (1.38) Depth: 20 00:02:53 16610kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qd1 > ± (1.38) Depth: 21 00:04:47 27211kN > >Analysis by Rybka 1.01 Beta 13 32-bit: > >1.Bd6 > -+ (-7.12) Depth: 3 00:00:00 >1.g4 > = (0.15) Depth: 3 00:00:00 >1.g4 > ³ (-0.42) Depth: 4 00:00:00 >1.g4 fxg4 > = (0.00) Depth: 5 00:00:00 >1.g4 fxg4 2.e4 > = (0.09) Depth: 6 00:00:00 5kN >1.g4 fxg4 2.e4 b2 3.Bxb2+ Kxb2 > ³ (-0.61) Depth: 7 00:00:00 8kN >1.g4 fxg4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 > ³ (-0.61) Depth: 8 00:00:00 17kN >1.g4 fxg4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a4 > -+ (-2.12) Depth: 9 00:00:00 29kN >1.g4 fxg4 2.e4 b2 3.Bxb2+ Kxb2 4.e5 a4 > -+ (-2.15) Depth: 10 00:00:00 57kN >1.g4 fxg4 > -+ (-2.33) Depth: 11 00:00:00 86kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 > ± (1.01) Depth: 11 00:00:00 110kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ > ± (1.06) Depth: 12 00:00:00 148kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ > ± (1.16) Depth: 13 00:00:01 226kN >1.Kxf5 b2 > ± (1.13) Depth: 14 00:00:03 378kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ > ± (1.22) Depth: 15 00:00:06 649kN >1.Kxf5 b2 2.Bxb2+ Kxb2 3.e4 a4 4.e5 a3 5.e6 a2 6.e7 a1Q 7.e8Q Qf1+ > ± (1.23) Depth: 16 00:00:11 1104kN >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. GR
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