Author: John Merlino
Date: 09:10:54 03/21/05
Go up one level in this thread
On March 21, 2005 at 11:27:34, F. vd Muysenberg wrote: >[D]rnbq1r1k/pppp1p1p/3n1Pp1/6N1/2B2Q2/8/PB3PPP/R4K1R w - - 0 1 > >10 for sure, but 9 ? > >What do the engines/matefinders think? > >Frank Bd3 is a Mate in 9, according to CM9 Yoda v2.5 on a P4-2.4: Time Depth Score Positions Moves 0:00 1/5 0.16 14474 1.Ba3 Kg8 2.Bxd6 cxd6 3.Qxd6 h6 4.Nf3 0:00 1/5 2.74 32963 1.Nxh7 Nf5 2.Nxf8 Qxf8 3.Kg1 d6 0:00 1/6 2.86 45332 1.Nxh7 Nf5 2.Nxf8 Qxf8 3.Kg1 Nc6 4.Qxc7 0:00 1/7 2.68 68625 1.Nxh7 Nf5 2.Nxf8 Qxf8 3.Qxc7 Nc6 4.Kg1 Nd6 0:00 1/8 2.78 122830 1.Nxh7 Nf5 2.Nxf8 Qxf8 3.Qxc7 Nc6 4.a3 Qc5 5.Bxf7 0:02 1/8 4.30 475232 1.Nxf7+ Rxf7 2.Bxf7 Qf8 3.Bxg6 Nf7 4.Qh4 Qg8 5.Re1 d5 6.Bxh7 0:02 1/9 4.97 572507 1.Nxf7+ Rxf7 2.Bxf7 Qf8 3.Bxg6 Nf7 4.Qh4 Qg8 5.Re1 b6 6.Bxh7 Qf8 0:05 1/9 9.10 1060683 1.Bd3 Nf5 2.Bxf5 d5 3.Qh4 h5 4.Bxg6 Bg4 5.Bxh5 Kg8 6.Bxg4 0:07 1/10 Mate10 1716625 1.Bd3 h5 2.Ne6 Kh7 3.Bc1 Kg8 4.Qh6 Nf5 5.Bxf5 Qxf6 6.Qxf8+ Kh7 7.Ng5+ Qxg5 8.Bxg5 gxf5 9.Qxf7+ Kh8 10.Bf6# 0:10 1/11 Mate10 2606251 1.Bd3 Rg8 2.Qh4 h5 3.Bxg6 fxg6 4.f7+ Rg7 5.Qd4 Nf5 6.Qf6 Qf8 7.Qxg6 Ne3+ 8.fxe3 Qxf7+ 9.Nxf7+ Kg8 10.Qxg7# 0:14 2/12 Mate09 3967380 1.Bd3 Rg8 2.Qh4 h5 3.Bxg6 fxg6 4.f7+ Rg7 5.Qd4 Nf5 6.Re1 Qf8 7.Re8 Nxd4 8.Rxf8+ Rg8 9.fxg8=Q# 0:56 2/13 Mate09 16978288 1.Bd3 Rg8 2.Qh4 h5 3.Bxg6 fxg6 4.f7+ Rg7 5.Qd4 Nf5 6.Re1 Qf8 7.Re8 Nxd4 8.Rxf8+ Rg8 9.fxg8=Q# Additionally, Nxh7 is a mate in no more than 13 moves. jm
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