Author: Joachim Rang
Date: 02:30:16 07/18/04
Go up one level in this thread
On July 18, 2004 at 05:21:56, Vincent Lejeune wrote: >On July 17, 2004 at 23:54:49, Stuart Cracraft wrote: > >>[D]3qk3/8/8/8/8/8/PPPPPPPP/RNBQKBNR w - - 0 1 >> >>White to play and mate. >> >>Is this a joke or real? >> >>Stuart > >Very real > >Chessmaster 10 (TheKing 3.33), AMD barton@3000+, 64 MB hash : > >Time Depth Score Positions Moves >0:01 1/9 31.30 304669 1.e3 Kd7 2.Qg4+ Kc7 3.Nc3 Kb8 4.Qb4+ > Ka8 5.Ba6 Qc7 6.Nf3 Qc6 >0:02 1/10 31.47 538504 1.e3 Kd7 2.Qg4+ Kc7 3.Nc3 Kb8 4.Bb5 > Qd6 5.Qg8+ Ka7 6.Nf3 Qe7 >0:05 1/11 31.57 1234684 1.e3 Kd7 2.Qg4+ Kc7 3.Nc3 Kb8 4.Qb4+ > Kc7 5.Nf3 Kc8 6.Ba6+ Kd7 7.Qd4+ > Ke8 8.Bb5+ Ke7 9.Qxd8+ Kxd8 >0:15 1/12 31.70 3626176 1.e3 Kd7 2.Qg4+ Kc7 3.Nc3 Qd7 4.Qxd7+ > Kxd7 5.Nf3 Ke7 6.Bd3 Kd6 7.h3 Ke7 >0:33 2/13 31.88 8311544 1.e3 Kd7 2.Qg4+ Kc7 3.Nc3 Qd7 4.Qxd7+ > Kxd7 5.Nf3 Ke7 6.Bd3 Kf7 7.b3 Kf6 > 8.Ba3 >2:52 2/13 32.21 51643257 1.e4 Qg5 2.Nc3 Qg6 3.Qf3 Qf7 4.Bb5+ > Kf8 5.Qxf7+ Kxf7 6.Nf3 Ke6 7.d3 > Kf7 8.Be3 Ke7 >3:57 2/14 37.34 72214796 1.e4 Qg5 2.d4 Qg6 3.Qf3 Kd7 4.Qh3+ > Ke7 5.Qa3+ Kf7 6.Bc4+ Ke8 7.Qa8+ > Kd7 8.Qb7+ Ke8 9.Bf7+ Qxf7 10.Qc8+ > Ke7 11.Bg5+ Qf6 12.Qc7+ Ke8 13.Bxf6 >9:58 2/15 Mate15 208018481 1.e4 Qg5 2.d4 Qg6 3.Qf3 Kd7 4.Bb5+ > Kc7 5.Bf4+ Kb7 6.Qa3 Qxe4+ 7.Ne2 > Qe6 8.Ba6+ Kb6 9.c4 Qf5 10.c5+ > Qxc5 11.dxc5+ Kc6 12.Qa4+ Kd5 13.Qc4+ > Kc6 14.Qe6+ Kxc5 15.Qd6# >18:46 3/16 Mate13 408438953 1.e4 Qg5 2.d4 Qg6 3.Qf3 Kd7 4.Bb5+ > Kc7 5.Bf4+ Kb7 6.Qb3 Qxe4+ 7.Ne2 > Qc6 8.Qf7+ Kb6 9.Bxc6 Kxc6 10.Qc7+ > Kb5 11.Qb7+ Ka5 12.Bd2+ Ka4 13.Qa6# >1:12:17 3/17 Mate12 1714468734 1.e4 Qg5 2.Qf3 Qg6 3.Bb5+ Ke7 4.d4 > Qf6 5.Qh3 Qxd4 6.Qh7+ Kf6 7.Be8 > Qb4+ 8.Nc3 Qa5 9.Qf7+ Ke5 10.Nf3+ > Kd6 11.Qd7+ Kc5 12.Qd4# Sure there is not a mate in 11? After 1.e4 Qg5 2. d4 Qg6 CM 3.23 announces mate in 11 on my machine. Too bad that CM does not support backward analysis and does not use its Hashtables of previous searches. regards Joachim
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