Author: Mikael Bäckman
Date: 02:30:27 01/24/04
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On January 23, 2004 at 16:36:24, Yar wrote: >Hello, > >Can your engine find mate in 11 here ? > >[D]3QK1bk/1p3p2/2p2N2/4p3/B1P1p2p/qP3p2/5r1r/b7 w KQkq - 0 1 > > >PS >Position from old issue of russian chess magazine '64' > >Good luck, > >Yar This position crashed my engine for the first time in a long while. After some debugging I noticed the FEN is wrong. Castling is not possible in this position. Chepla finds only a draw. -5.43 174k 0.4 Ng4! Qxb3 Bxb3 h3 Nxf2 Bd4 Nxe4 Rb2 Ng5 9/17 0.00 1289k 2.6 Ng4 Qc1 Qf6+ Kh7 Qf5+ Kg7 Qf6+ Kh7 10/24 0.00 1565k 3.1 Ng4 Qc1 Qf6+ Kh7 Qf5+ Kg7 Qf6+ Kh7 11/25 0.00 2199k 4.2 Ng4 Qc1 Qf6+ Kh7 Qf5+ Kg7 Qf6+ Kh7 12/25 0.00 4029k 7.4 Ng4 Qc1 Qf6+ Kh7 Qf5+ Kg7 Qf6+ Kh7 13/27 0.00 9846k 16.6 Ng4 Qc1 Qf6+ Kh7 Qf5+ Kg7 Qf6+ Kh7 14/29 0.00 49791k 86.1 Ng4 Qc1 Qf6+ Kh7 Qf5+ Kg7 Qf6+ Kh7 15/32 /Mikael
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