Author: John Merlino
Date: 12:13:10 12/12/02
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On December 12, 2002 at 14:54:03, Art Basham wrote: >Hi John........are you there? >How long does it take your program to ann. mate at move one? > >I think this is a forced nate in 13, but not sure...:-) > >[D]1r3k1r/6pp/p3Qp2/P7/q1P5/8/1n4PP/1R3R1K w - - 0 1 > >White plays 1. Rxf6+ Not long at all. CM9000, on a P3-733, announces Mate in 14 after 18 seconds, and does not improve on it with the two subsequent PVs. This is not very difficult, as all of White's moves are checks.... Time Depth Score Positions Moves 0:00 1/3 0.00 5354 1.Qd6+ Kf7 2.Qc7+ Kg6 3.Qg3+ Kf7 4.Qc7+ 0:00 1/4 0.00 13640 1.Qd6+ Kf7 2.Qc7+ Kg6 3.Qg3+ Kf7 4.Qc7+ 0:00 1/4 5.13 24565 1.Rxf6+ gxf6 2.Qxf6+ Kg8 3.Qg5+ Kf7 4.Rf1+ Ke8 5.Qe5+ Kd8 6.Qxb8+ Kd7 7.Qxh8 0:00 1/5 4.96 49779 1.Rxf6+ gxf6 2.Qxf6+ Kg8 3.Qg5+ Kf8 4.Rf1+ Ke8 5.Qe5+ Kd8 6.Qxb8+ Kd7 7.Qxh8 Qc2 0:01 1/6 5.19 101046 1.Rxf6+ gxf6 2.Qxf6+ Kg8 3.Qg5+ Kf8 4.Rf1+ Ke8 5.Qe5+ Kd8 6.Qxb8+ Kd7 7.Qxh8 Qxc4 8.Qxh7+ Kd6 0:02 1/7 5.38 253295 1.Rxf6+ gxf6 2.Qxf6+ Kg8 3.Qg5+ Kf8 4.Rf1+ Ke8 5.Re1+ Kf8 6.Qf4+ Kg8 7.Qxb8+ Kf7 8.Qxh8 Qc2 9.Qe8+ Kg7 0:06 1/8 7.47 762540 1.Rxf6+ gxf6 2.Qxf6+ Kg8 3.Qg5+ Kf8 4.Rf1+ Ke8 5.Qe5+ Kd8 6.Qxb8+ Kd7 7.Qxb2 Qxc4 8.Rd1+ Ke6 9.Re1+ Kd5 10.Qxh8 0:18 1/9 Mate14 2176958 1.Rxf6+ gxf6 2.Qxf6+ Kg8 3.Qg5+ Kf8 4.Rf1+ Ke8 5.Re1+ Kf8 6.Qf4+ Kg8 7.Qxb8+ Kf7 8.Qc7+ Kg8 9.Qd8+ Qe8 10.Qxe8+ Kg7 11.Qe7+ Kg8 12.Qg5+ Kf7 13.Re7+ Kf8 14.Qg7# 0:58 2/10 Mate14 7253333 1.Rxf6+ gxf6 2.Qxf6+ Kg8 3.Qg5+ Kf8 4.Rf1+ Ke8 5.Re1+ Kf8 6.Qf4+ Kg8 7.Qxb8+ Kf7 8.Qc7+ Kg8 9.Qd8+ Qe8 10.Qxe8+ Kg7 11.Qe7+ Kg6 12.Qd6+ Kf7 13.Re7+ Kg8 14.Qd8# 3:53 3/11 Mate14 29537449 1.Rxf6+ gxf6 2.Qxf6+ Kg8 3.Qg5+ Kf8 4.Rf1+ Ke8 5.Re1+ Kf8 6.Qf4+ Kg8 7.Qxb8+ Kf7 8.Qc7+ Kg8 9.Qd8+ Qe8 10.Qxe8+ Kg7 11.Qe7+ Kg6 12.Qd6+ Kf7 13.Re7+ Kf8 14.Qd8# jm
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