Author: Paul Jacobean Sacral
Date: 05:50:20 11/29/05
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On November 29, 2005 at 08:28:14, Jack Lad wrote: >[d] 2K3Q1/8/7k/2r5/b7/8/8/8 w - - 0 1 These are 5-piece endings. Shredder 9 SE (which has no tbs. access of the engine) and Toga II 1.1 clearly prefer the only winning move 1.Kd8 from the beginning, 0:00 seconds, but of course cannot announce #66 Analysis by Shredder 9 SE: 1.Kb8 Rb5+ 2.Kc7 Rc5+ 3.Kd6 Rc6+ 4.Ke5 Kh5 ² (0.47) Depth: 3/5 00:00:00 ² (0.42) Depth: 5/16 00:00:00 1.Kb7 Rb5+ ² (0.43) Depth: 5/16 00:00:00 ² (0.43) Depth: 5/16 00:00:00 1.Kd8 Ra5 2.Qg4 Ra8+ ² (0.44) Depth: 5/16 00:00:00 ² (0.44) Depth: 6/19 00:00:00 1.Kb7 Ra5 2.Kc7 Kh5 3.Qh7+ Kg4 4.Qe4+ Kg5 5.Qg2+ Kf5 6.Qg3 ² (0.45) Depth: 6/19 00:00:00 ² (0.47) Depth: 7/21 00:00:00 73kN 1.Kd8 Rg5 2.Qh8+ Kg6 3.Ke7 Rf5 4.Qh3 Re5+ 5.Kd6 Rg5 6.Qe6+ Kh5 7.Qf7+ Kh6 8.Qf4 Bb5 9.Ke7 ² (0.48) Depth: 7/21 00:00:00 79kN ² (0.50) Depth: 19/44 00:01:53 75313kN Analysis by Toga II 1.1: 1.Kb7 Bc6+ 2.Kb6 = (0.16) Depth: 1/3 00:00:00 = (0.16) Depth: 2/5 00:00:00 1.Kb8 Rf5 2.Kc7 = (0.17) Depth: 2/6 00:00:00 = (0.17) Depth: 3/10 00:00:00 1.Kb7 Rf5 2.Qe6+ Kg5 3.Qe3+ Kg6 4.Qg3+ Kh5 5.Qd3 Rf7+ 6.Kb6 = (0.19) Depth: 3/10 00:00:00 = (0.20) Depth: 7/16 00:00:00 75kN 1.Kd8 Rg5 2.Qe6+ Rg6 3.Qe3+ Kh5 4.Qe2+ Kg5 5.Qd2+ Kh4 6.Qh2+ Kg4 7.Qg2+ Kh5 8.Qh3+ Kg5 9.Qg3+ Kf5 10.Qf2+ Kg5 11.Qg1+ Kh5 12.Qh1+ Kg5 13.Qd5+ Kh4 14.Ke7 Bc6 15.Qd4+ Kh5 16.Qe5+ Kh4 = (0.21) Depth: 7/18 00:00:00 141kN = (0.24) Depth: 20/46 00:04:28 305746kN >[d] k7/2K5/8/8/BR6/8/8/5q2 w - - 0 1 #19 according to the tbs. The only winning move is Bb5. Analysis by Shredder 9 SE: 1.Bc6+ Ka7 2.Rb7+ Ka6 3.Bb5+ Qxb5 4.Rxb5 Kxb5 = (0.00) Depth: 3/8 00:00:00 = (0.00) Depth: 5/10 00:00:00 1.Bd7 Ka7 2.Rb7+ Ka6 3.Bb5+ Qxb5 4.Rxb5 Kxb5 +- (3.63) Depth: 5/12 00:00:00 = (0.00) Depth: 7/22 00:00:00 16kN 1.Bb5 Qf7+ 2.Bd7 Qa2 3.Bc6+ Ka7 4.Rb7+ Ka6 5.Bb5+ Ka5 6.Ra7+ Kxb5 7.Rxa2 Kc5 8.Ra5+ Kd4 9.Kd6 Kd3 10.Rd5+ Ke3 11.Re5+ = (0.01) Depth: 7/22 00:00:00 21kN +- (6.92) Depth: 24/42 00:01:21 63532kN Analysis by Toga II 1.1: 1.Bd1 Qxd1 -+ (-4.39) Depth: 1/3 00:00:00 1.Bc2 = (-0.16) Depth: 1/3 00:00:00 1.Bc6+ Ka7 2.Ra4+ Qa6 3.Rxa6+ Kxa6 = (0.00) Depth: 1/8 00:00:00 = (0.00) Depth: 6/14 00:00:00 13kN 1.Bb5 Qf7+ 2.Bd7 Qa2 3.Bc6+ Ka7 4.Rb7+ Ka6 5.Bb5+ Ka5 6.Ra7+ Kxb5 7.Rxa2 Kc5 8.Rh2 Kd5 9.Rh5+ Kd4 10.Kd6 Ke4 11.Rh4+ Kd3 12.Ke5 Kc3 13.Kd5 Kd3 14.Rh3+ Kd2 15.Kd4 Ke2 16.Rb3 Kd2 +- (5.10) Depth: 6/16 00:00:00 19kN +- (5.73) Depth: 24/44 00:01:15 93941kN P4/3.0 GHz, 128 MB hash Yours truly Paul J. Sacral
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