Author: Christophe Drieu
Date: 14:26:53 07/23/03
Go up one level in this thread
On July 23, 2003 at 15:24:18, Matthew White wrote: >[D]8/5p1k/6pp/8/q2QB3/2K4P/1p3P2/8 b - - 0 45 > >From Levin (2331) - IM Donaldson, Western States Open 2003 (analysis) >The move actually played was 45... Qa1? 46. Bxg6+!! and draw by perpetual check >Can your engine find the winning 45... b1=N+!! 46. Bxb1 Qa1+ and black enters >the endgame a pawn up > >Every engine that I have tested finds it eventually. However, some do take >longer than others :). > >Matt T.rex 1.8.2 00:00:00.0 2,73 1 25 b1R 00:00:00.0 2,74 2 202 Qxd4+ Kxd4 b1R 00:00:00.0 2,75 3 540 Qa3+ Kd2 b1R 00:00:00.1 0,87 4 11730 Qa1 Bxg6+ Kxg6 Qe4+ 00:00:00.3 0,89 5 17961 Qa1 Bxg6+ fxg6 Qd7+ Kg8 00:00:01.5 0,85 6 133195 Qa1 Bxg6+ Kxg6 Qg4+ Kf6 Qe4 00:00:03.2 0,91 7 188772 b1N+ Kd3 Qb3+ Ke2 Nc3+ Kd2 Nxe4+ Qxe4 00:00:08.5 0,91 8 584995 b1N+ Bxb1 Qa1+ Kd3 Qxb1+ Kd2 Qa2+ Kc1 00:00:40.3 0,94 9 3629722 b1N+ Kd3 Qb3+ Ke2 Nc3+ Kd2 Nxe4+ Qxe4 Qxh3 Qxg6+
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