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Subject: Re: mate-in-13

Author: John Merlino

Date: 12:41:14 04/16/05

Go up one level in this thread


On April 16, 2005 at 15:02:50, Mike Byrne wrote:

>while searching for info on Ruffian - found this old problem that Ruffian 1.0.1
>solved very quickly
>
>Crafty 19.20
>Dual Opterons
>
>White(1): [d]8/8/pp6/2pp2p1/3p2Pk/3P1K1P/5PP1/8 b - - 0 1

Eleven seconds for CM9_R1 on an AMD 2500:

Time	Depth	Score	Positions	Moves
0:00	1/4	-3.61	228		1...b5 2.Ke2 a5 3.Kd2 a4
0:00	1/5	-3.51	307		1...b5 2.Ke2 a5 3.Kd2 a4 4.Kc2
0:00	1/6	-3.77	577		1...b5 2.Ke2 a5 3.Kd2 a4 4.Kc2 b4
0:00	1/7	-3.66	867		1...b5 2.Ke2 a5 3.Kd2 a4 4.Kc2
					b4 5.Kb2
0:00	1/8	-3.83	1242		1...b5 2.Ke2 a5 3.Kd2 a4 4.Kc2
					b4 5.Kb2 a3+ 6.Ka2
0:00	2/9	-3.83	2026		1...b5 2.Ke2 a5 3.Kd2 a4 4.Kc2
					b4 5.Kb2 a3+ 6.Ka2
0:00	3/10	-4.20	3376		1...b5 2.Ke2 a5 3.Kd2 a4 4.Kc2
					b4 5.Kb2 a3+ 6.Ka2 c4
0:00	4/11	Mate05	11217		1...b5 2.Ke2 a5 3.Kf1 a4 4.Kg1
					b4 5.Kh2 a3 6.g3#
0:00	4/11	-4.20	17652		1...a5 2.Ke2 a4 3.Kd2 a3 4.Kc1
					b5 5.Kb1 b4 6.Ka2 c4
0:00	5/12	Mate05	45624		1...a5 2.Ke2 a4 3.Kf1 a3 4.Kg1
					a2 5.Kh2 a1=Q 6.g3#
0:00	5/12	-1.32	54232		1...c4 2.Ke2 cxd3+ 3.Kxd3 b5 4.Kxd4
					b4 5.Kd3 a5 6.Kc2 a4 7.Kb2 d4
0:00	6/13	-1.58	89764		1...c4 2.Ke2 cxd3+ 3.Kxd3 b5 4.Kxd4
					b4 5.Kd3 a5 6.Kd2 a4 7.Kc2 a3 8.Kb3
0:00	7/14	-1.32	150424		1...c4 2.Ke2 cxd3+ 3.Kxd3 b5 4.Ke2
					d3+ 5.Kxd3 a5 6.Kc2 a4 7.Kc3 a3
					8.Kb3 b4 9.Ka2 d4
0:00	8/15	-1.32	260794		1...c4 2.Ke2 cxd3+ 3.Kxd3 b5 4.Ke2
					d3+ 5.Kxd3 a5 6.Kc2 a4 7.Kc3 a3
					8.Kb3 b4 9.Ka2 d4
0:01	9/16	-1.80	482837		1...c4 2.Ke2 cxd3+ 3.Kxd3 b5 4.Ke2
					d3+ 5.Kxd3 a5 6.Kc2 a4 7.Kc3 a3
					8.Kb3 b4 9.Ka2 d4 10.Kb3 d3
0:02	10/17	-1.80	871920		1...c4 2.Ke2 cxd3+ 3.Kxd3 b5 4.Ke2
					d3+ 5.Kxd3 a5 6.Kc2 a4 7.Kc3 a3
					8.Kb3 b4 9.Ka2 d4 10.Kb3 d3
0:05	11/18	1.88	1810950		1...c4 2.Ke2 cxd3+ 3.Kxd3 b5 4.Ke2
					d3+ 5.Kxd3 d4 6.Kxd4 b4 7.Ke3 a5
					8.Kd3 b3 9.Kc3 a4 10.Kb2 a3+ 11.Kxa3
					b2 12.g3+ Kxh3 13.Kxb2 Kxg4 14.Kc3
0:08	12/19	1.76	2959107		1...c4 2.Ke2 cxd3+ 3.Kxd3 b5 4.Ke2
					d3+ 5.Kxd3 d4 6.Kxd4 b4 7.Kd3 a5
					8.Kc4 a4 9.Kxb4 a3 10.Kb3 a2 11.g3+
					Kxh3 12.Kxa2 Kxg4 13.Kb3 Kf3
0:11	13/20	Mate13	4236197		1...c4 2.Ke2 cxd3+ 3.Kxd3 b5 4.Ke2
					d3+ 5.Kxd3 d4 6.Ke2 d3+ 7.Kxd3
					b4 8.Ke2 b3 9.Kf1 b2 10.Kg1 b1=Q+
					11.Kh2 Qg1+ 12.Kxg1 a5 13.Kh2 a4
					14.g3#
0:14	14/21	Mate13	5715817		1...c4 2.Ke2 cxd3+ 3.Kxd3 b5 4.Ke2
					d3+ 5.Kxd3 d4 6.Ke2 d3+ 7.Kxd3
					b4 8.Ke2 b3 9.Kf1 b2 10.Kg1 b1=Q+
					11.Kh2 Qg1+ 12.Kxg1 a5 13.Kh2 a4
					14.g3#
0:20	15/22	Mate13	7936203		1...c4 2.Ke2 cxd3+ 3.Kxd3 b5 4.Ke2
					d3+ 5.Kxd3 d4 6.Ke2 d3+ 7.Kxd3
					b4 8.Ke2 b3 9.Kf1 b2 10.Kg1 b1=Q+
					11.Kh2 Qg1+ 12.Kxg1 a5 13.Kh2 a4
					14.g3#

jm



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