Author: Richard A. Fowell
Date: 21:48:21 04/04/02
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On April 04, 2002 at 08:36:05, Art Basham wrote: >White mates in 5..! > [D]8/8/8/p7/8/8/R6p/2K2Rbk w - - > >My RISC computer finds 1. Ra2 - f2 in just 73 sec. >Can your favorite engine do that well..? :-) MacChess 5.01 for Macintosh on my G4/867 MHz finds this at ply 5 in 0.0704 seconds. MacChess is freeware, at: http://members.aol.com/macchess/ Ply Time Nodes Eval PV ======================================================================== 05/01|00:00:00| 81145| +569| Kb1 a4 Rd1 a3 Rdd2 Be3 Rxh2+ Kg1 Rag2+ Kf1 Kc2 05/07|00:00:00| 182677|+M5 | Raf2 a4 Kd2 a3 Ra1 a2 Ke1 Bxf2+ Kxf2+ 06/01|00:00:00| 287037|+M5 | Raf2 a4 Kd2 a3 Ra1 a2 Ke1 Bxf2+ Kxf2+ 07/01|00:00:01| 682385|+M5 | Raf2 a4 Kd2 a3 Ra1 a2 Ke1 Bxf2+ Kxf2+ 08/01|00:00:01| 1428086|+M5 | Raf2 a4 Kd2 a3 Ra1 a2 Ke1 Bxf2+ Kxf2+ 09/01|00:00:03| 2594914|+M5 | Raf2 a4 Kd2 a3 Ra1 a2 Ke1 Bxf2+ Kxf2+ (Note that, as of version 5.01, MacChess doesn't stop immediately when it finds mate, but tries to find the shortest mate within the time allowed). Richard A. Fowell
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