Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Mate in 12 ....

Author: John Merlino

Date: 15:13:57 01/08/02

Go up one level in this thread


On January 07, 2002 at 11:22:18, Robert Basham wrote:

>Extreme Chess takes 15 ply and 42 sec. to find
>1. Rh8+...! but then has trouble playing it out to the end...
>
>(The same kind of problem occurs with Hiarcs7 also)...
>
>[D]qn1rn1k1/2rp2N1/2b1p1K1/4Bp2/p7/1p6/2p5/7R w - -

CM8000 sees mate in 12 in less than one second on my PIII-600:

Time	Depth	Score	Positions	Moves
0:00	1/3	0.00	1030		1.Rh8+ Kxh8 2.Nxe8+ Kg8 3.Nf6+
					Kh8 4.Ne4+ Kg8 5.Nf6+
0:00	1/4	0.00	2624		1.Rh8+ Kxh8 2.Nxe8+ Kg8 3.Nf6+
					Kh8 4.Ne4+ Kg8 5.Nf6+
0:00	2/5	0.00	8734		1.Rh8+ Kxh8 2.Nxe8+ Kg8 3.Nf6+
					Kh8 4.Ne4+ Kg8 5.Nf6+
0:00	2/6	0.00	22841		1.Rh8+ Kxh8 2.Nxe8+ Kg8 3.Nf6+
					Kh8 4.Ne4+ Kg8 5.Nf6+
0:00	3/7	Mate12	56298		1.Rh8+ Kxh8 2.Nxe8+ Kg8 3.Nf6+
					Kh8 4.Ng4+ Kg8 5.Nh6+ Kf8 6.Bd6+
					Ke8 7.Ng8 Rdc8 8.Nf6+ Kd8 9.Kf7
					Rb7 10.Ne8 Rcc7 11.Be7+ Kc8 12.Nd6#

0:01	3/8	Mate12	124315		1.Rh8+ Kxh8 2.Nxe8+ Kg8 3.Nf6+
					Kh8 4.Ng4+ Kg8 5.Nh6+ Kf8 6.Bd6+
					Ke8 7.Ng8 Rdc8 8.Nf6+ Kd8 9.Kf7
					Rb7 10.Ne8 Rcc7 11.Be7+ Kc8 12.Nd6#

0:03	4/9	Mate12	280001		1.Rh8+ Kxh8 2.Nxe8+ Kg8 3.Nf6+
					Kh8 4.Ng4+ Kg8 5.Nh6+ Kf8 6.Bd6+
					Ke8 7.Ng8 Rdc8 8.Nf6+ Kd8 9.Kf7
					Rb7 10.Ne8 Rcc7 11.Be7+ Kc8 12.Nd6#

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.