Author: Mike Siler
Date: 14:02:18 01/10/04
Go up one level in this thread
On January 10, 2004 at 15:29:16, David Dahlem wrote: >White to move and draw. Which engines can find it? > >[D]3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P1K2P/PPB5/8 w - - 0 1 > >1. Ba4+ Kxa4 2. b3+ Kb5 3. c4+ Kc6 4. d5+ Kd7 5. e6+ Kxd8 6. f5 1/2-1/2 > >Regards >Dave After 27 minutes on my Athlon 2400+ w/ 32Mb hash, Ruffian 1.0.5 still doesn't see it: Ruffian 1.0.5 UCI 28 MB: 1 00:00 -8.79 e5xf6 Ba5xd8 1 00:00 -8.77 b2xa3 Ba5xd8 a3xb4 g5xf4+ Ke3xf4 Ra6xa2 1 00:00 -7.11 Bd8xa5 Ra6xa5 1 00:00 -6.44 Bc2d3+ c5c4 2 00:00 -8.22 Bc2d3+ c5c4 Bd8xa5 2 00:00 -7.59 Bd8xa5 Kb5xa5 b2xa3 g5xf4+ Ke3xf4 b4xc3 d4xc5 d6xc5 2 00:00 -3.97 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 Bd3e4+ Kd5c4 3 00:00 -3.75 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 Bd3e4+ Kd5e6 f4f5+ Ke6d7 Be4xb7 c5xd4+ 4 00:00 -3.77 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 Bd3xa6 c5xd4+ Ke3d3 Rb7a7 5 00:00 -4.41 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 Bd3e4+ Kd5e6 f4f5+ Ke6d7 Be4xb7 a3xb2 Bb7xa6 b2b1Q Bd8xa5 Qb1xa2 6 00:00 -4.44 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 Bd3e4+ Kd5e6 f4f5+ Ke6d7 Be4xb7 c5xd4+ Ke3xd4 f6xe5+ Kd4e3 a3xb2 Bb7xa6 b2b1Q Bd8xa5 7 00:00 -4.56 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 Bd3e4+ Kd5e6 f4f5+ Ke6d7 Be4xb7 c5xd4+ Ke3xd4 f6xe5+ Kd4c4 a3xb2 Bb7xa6 b2b1Q Bd8xa5 Qb1xa2+ Kc4xb4 8 00:00 -4.72 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 Bd3e4+ Kd5e6 f4f5+ Ke6d7 Be4xb7 c5xd4+ Ke3xd4 f6xe5+ Kd4c4 Ra6a7 Bd8xa5 Ra7xa5 9- 00:01 -5.07 c3c4+ 9 00:02 -5.63 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 Bd3e4+ Kd5e6 Be4xb7 g5xf4+ Ke3xf4 d6xe5+ d4xe5 f6xe5+ Kf4e3 Ra6a7 b2xa3 Ba5xd8 Bb7c8+ Ke6d5 a3xb4 c5xb4 10 00:04 -5.65 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 Bd3e4+ Kd5e6 f4f5+ Ke6d7 Be4xb7 c5xd4+ Ke3xd4 a3xb2 Bb7xa6 f6xe5+ Kd4d5 b2b1Q Bd8xa5 Qb1xa2+ 11- 00:10 -6.00 c3c4+ 11 00:17 -6.08 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 e5xf6 g5xf4+ Ke3f3 Kd5xd4 f6xe7 Rb7xe7 Bd8xe7 Kd4xd3 b2xa3 b4xa3 Kf3xf4 Ba5d2+ Kf4f5 Bd2e1 12 00:37 -6.07 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 e5xf6 g5xf4+ Ke3f3 Kd5xd4 f6xe7 Rb7xe7 Bd8xe7 Kd4xd3 b2b3 Kd3c2 Kf3xf4 Kc2b1 Be7xh4 Kb1xa2 13 01:21 -6.14 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 Bd3xa6 Rb7a7 Ba6c4+ Kd5xc4 b2b3+ Kc4c3 e5xf6 g5xf4+ Ke3f3 e7xf6 Bd8xf6 Kc3b2 Kf3xf4 Kb2xa2 d4xc5 Ka2xb3 c5xd6 14 02:54 -6.42 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 Bd3xa6 Rb7a7 e5xf6 a3xb2 Ba6d3 g5xf4+ Ke3f2 e7xf6 Bd8xf6 c5c4 Bd3b1 c4c3 Kf2e2 Ra7f7 Bf6xh4 15+ 05:46 -6.07 c3c4+ 15 07:19 -6.50 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 Bd3xa6 Rb7a7 e5xf6 a3xb2 Ba6d3 g5xf4+ Ke3e2 e7xf6 Bd8xf6 c5c4 Bd3b1 Ra7f7 Bf6xh4 c4c3 Bh4f2 Ba5b6 16 17:35 -6.37 c3c4+ Kb5xc4 Bc2d3+ Kc4d5 Bd3xa6 Rb7b8 Bd8xa5 b4b3 Ba5c3 c5xd4+ Bc3xd4 f6xe5 f4xe5 d6xe5 Bd4c3 a3xb2 Bc3xb2 b3xa2 Bb2a1 Rb8b1 Ba1c3 Rb1b3 Ba6b7+ Rb3xb7 Bc3a1 Michael
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