Author: Ricardo Gibert
Date: 07:18:50 12/28/03
Go up one level in this thread
On December 28, 2003 at 04:46:07, martin fierz wrote: >On December 27, 2003 at 00:51:11, Mike Byrne wrote: > >> >>[d]8/r7/8/5bk1/8/5B2/5RPP/6K1 b - - 0 1 > >for all programs that instantly saw the draw in mike's >position, this may be interesting too (of course only >without tablebases): white to move and win, a study by >J. Vancura 1922, which is also on the chessbase site. > >[d]8/8/8/8/8/2K4B/5k1P/8 w - - 0 1 > >the point is that although black's king is in the >square of the white pawn, he can never get through >to the h-file. programs which are too speculative about >"wrong bishop => draw" might show a draw score before >they see the win. > >cheers > martin On an old 800mhz Athlon with 32Mb hash Ruffian finds a mate in 13: Ruffian_101 UCI: D1 00:00 2.80 Bh3f1 Kf2xf1 D1 00:00 5.41 Bh3g4 D1 00:00 5.51 Bh3f5 D1 00:00 5.55 Bh3e6 D2 00:00 0.00 Bh3e6 Kf2g2 D2 00:00 5.35 Kc3d2 Kf2f3 D3 00:00 0.00 Kc3d2 Kf2g1 Bh3e6 Kg1xh2 D3 00:00 3.50 Bh3f1 Kf2xf1 h2h4 D3 00:00 5.35 Bh3c8 Kf2f3 Kc3d2 D3 00:00 5.45 Bh3g4 Kf2e3 Bg4e6 D3 00:00 5.47 Bh3d7 Kf2f3 Kc3d2 D3 00:00 5.51 Bh3f5 Kf2f3 Kc3d2 D3 00:00 5.55 Bh3e6 Kf2f3 Kc3d2 D4 00:00 5.37 Bh3e6 Kf2f3 h2h4 Kf3f4 D5 00:00 5.65 Bh3e6 Kf2f3 h2h4 Kf3f4 h4h5 D6 00:00 5.75 Bh3e6 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 D7 00:00 5.71 Bh3e6 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 Be6d5 Ke5xd5 D7 00:00 6.03 Bh3c8 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 D7 00:00 6.15 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 D8 00:00 6.07 Bh3d7 Kf2e3 h2h4 Ke3f4 Kc3d4 Kf4g3 h4h5 Kg3f4 D9 00:00 6.35 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Kc3d4 D9 00:00 6.43 Bh3e6 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Kc3d4 D10 00:00 4.94 Bh3e6 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Be6f5 Kf6xf5 h6h7 D10 00:00 6.33 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6g5 D11 00:00 9.90 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q D12 00:01 9.70 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8e7 D13 00:01 9.90 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8e7 Kc3d4 D14 00:02 9.90 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 Kc3d4 Ke8e7 h7h8Q Ke7e6 D15 00:02 10.00 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 Kc3d4 Ke8e7 Kd4e5 Ke7d7 h7h8Q D16 00:03 10.04 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8d7 Kc3d4 Kd7e6 Qh8e5 Ke6d7 Kd4d5 D17 00:04 10.14 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8d7 Kc3d4 Kd7e6 Qh8e5 Ke6f7 Kd4d5 Kf7g6 D18 00:06 10.14 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8d7 Kc3d4 Kd7e6 Qh8e5 Ke6f7 Kd4d5 Kf7g6 Qe5e3 D19 00:07 10.14 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8d7 Kc3d4 Kd7e6 Qh8e5 Ke6f7 Kd4d5 Kf7g6 Qe5e4 Kg6f6 Qe4e5 Kf6f7 D20 00:09 10.14 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8d7 Kc3d4 Kd7e6 Qh8e5 Ke6f7 Kd4d5 Kf7g6 Qe5e4 Kg6f6 Kd5d6 Kf6f7 Qe4f5 D21 00:12 10.24 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8d7 Kc3d4 Kd7e6 Qh8e5 Ke6f7 Qe5d6 Kf7g7 Kd4d5 Kg7f7 Qd6e6 Kf7f8 Kd5d6 D22 00:16 10.24 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8d7 Kc3d4 Kd7e6 Qh8e5 Ke6f7 Qe5d6 Kf7g7 Kd4d5 Kg7f7 Qd6e6 Kf7f8 Kd5d6 Kf8g7 D23 00:20 10.24 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8d7 Kc3d4 Kd7e6 Qh8e5 Ke6f7 Qe5d6 Kf7g7 Kd4d5 Kg7f7 Qd6e6 Kf7f8 Kd5d6 Kf8g7 Qe6d5 Kg7g6 D24 00:27 10.24 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8d7 Kc3d4 Kd7e6 Qh8e5 Ke6f7 Qe5d6 Kf7g7 Kd4d5 Kg7f7 Qd6e6 Kf7f8 Kd5d6 Kf8g7 Qe6f5 Kg7h6 D25 00:37 10.24 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8d7 Kc3d4 Kd7e6 Qh8e5 Ke6f7 Qe5d6 Kf7g7 Kd4d5 Kg7f7 Qd6e6 Kf7f8 Kd5d6 Kf8g7 Qe6f5 Kg7h6 Kd6e6 D26+ 00:48 10.59 Bh3d7 D26 00:54 M15 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8d7 Qh8g7 Kd7e6 Kc3d4 Ke6f5 Qg7f7 Kf5g4 Kd4e4 Kg4g3 Qf7f3 Kg3h2 Qf3g4 Kh2h1 Ke4f3 Kh1h2 Qg4g2 D27 01:35 M13 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8d7 Qh8f6 Kd7e8 Kc3c4 Ke8d7 Kc4c5 Kd7e8 Qf6g7 Ke8d8 Kc5d6 Kd8e8 Qg7g8 D28 01:45 M13 Bh3d7 Kf2e3 h2h4 Ke3e4 h4h5 Ke4e5 h5h6 Ke5f6 Bd7e8 Kf6e7 h6h7 Ke7xe8 h7h8Q Ke8d7 Qh8f6 Kd7e8 Kc3c4 Ke8d7 Kc4c5 Kd7e8 Qf6g7 Ke8d8 Kc5d6 Kd8e8 Qg7g8
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