Author: Tony Werten
Date: 08:50:56 01/26/03
Go up one level in this thread
On January 26, 2003 at 08:49:28, Lyn Harper wrote: > > [D]3r2k1/5p2/3R2p1/2rRp1b1/2q1P1Pp/3Q3P/6P1/3N3K b > > Interesting position solved by Boris Gelfand in 1999 in his game against > Sergei Movsesian. > It's a mate in 11. My mid range comp (slow P4) took 1min33secs running CM9K. > How does yours go? Black to move, of course. The right move seems trivial, the checkmate score not. XiniX (amd2000+) thinks it's a cm in 12 ply: 9/24 score:10.663 time:0:03 300 Kn/s 1. .. Rxd5 2.Rxd5 Rxd5 3.Qf3 Rd3 4.Kg1 Rxf3 5.gxf3 Qe2 ply:10/25 score:11.212 time:0:04 310 Kn/s 1. .. Rxd5 2.Rxd5 Rxd5 3.Qf3 Rd3 4.Ne3 Bxe3 5.Qf1 Qxe4 6.Qf3 ply:11/33 score:16.277 time:0:31 342 Kn/s 1. .. Rxd5 2.Rxd5 Rxd5 3.Qf3 Rd3 4.Kg1 Rxf3 5.gxf3 Qc1 6.Kg2 Qxd1 7.f4 Bxf4 ply:12/33 score:16.277 time:0:39 334 Kn/s 1. .. Rxd5 2.Rxd5 Rxd5 3.Qf3 Rd3 4.Kg1 Rxf3 5.gxf3 Qc1 6.Kg2 Qxd1 7.f4 Bxf4 ply:13/33 score:99.977 time:3:43 409 Kn/s 1. .. Rxd5 2.Rxd5 Rxd5 3.Qxc4 Rxd1+ 4.Kh2 Bf4+ 5.g3 hxg3+ 6.Kg2 Rd2+ 7.Qe2 Rxe2+ 8.Kf1 Rd2 9.Kg1 g2 10.h4 Be3+ 11.Kh2 g1Q+ 12.Kh3 Tony
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