Author: Ulrich Tuerke
Date: 13:47:54 12/13/02
Go up one level in this thread
On December 12, 2002 at 15:13:10, John Merlino wrote: >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# CM sees a mate in 14 in iteration no 1 ? Usually I'd say it's insane extending the search that much. However knowing the playing strength of CM, I can only say that's unbelievably impressive. Uli >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
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.