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Subject: Re: mate-in-10

Author: John Merlino

Date: 22:02:22 02/24/06

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On February 24, 2006 at 19:50:11, Mike Byrne wrote:

>didn't test other engines, but it has an interesting solution
>
>FEN: [d]3r1r1k/2n1Qp1p/1q2pNpP/p3P3/1ppp4/3P2P1/PP3Pb1/R3R1K1 w - - 0 1

Three seconds for CM9_R1 on a P4-2.4:

Time	Depth	Score	Positions	Moves
0:00	1/3	0.00	1153		1.Ne8 Kg8 2.Nf6+ Kh8
0:00	1/4	0.00	2775		1.Ne8 Kg8 2.Nf6+ Kh8
0:00	1/5	7.20	12656		1.Ne8 Kg8 2.Nxc7 Rfe8 3.Nxe8 Bf3
					4.Nf6+ Kh8 5.Qxf7
0:00	1/6	7.20	34365		1.Ne8 Kg8 2.Nxc7 Rfe8 3.Nxe8 Bf3
					4.Nf6+ Kh8 5.Qxf7
0:00	1/7	9.80	51855		1.Ne8 Kg8 2.Nxc7 Rfe8 3.Nxe8 Rc8
					4.Nf6+ Kh8 5.Kxg2 cxd3 6.Qxf7
0:00	1/8	12.12	101608		1.Ne8 Kg8 2.Nxc7 Rfe8 3.Nxe8 Ra8
					4.Qf6 Kf8 5.Nd6 Qa7 6.Qg7+ Ke7
					7.Qxf7+ Kd8 8.Kxg2 Qxf7 9.Nxf7+ Ke7
0:00	1/9	15.05	214150		1.Ne8 Kg8 2.Nxc7 Rfe8 3.Nxe8 Ra8
					4.Nf6+ Kh8 5.Nd7 Qd8 6.Qxf7 Qxd7
					7.Qxd7
0:01	1/10	18.89	450517		1.Ne8 Kg8 2.Nxc7 Rfe8 3.Nxe8 Ra8
					4.Nf6+ Kh8 5.Nd7 Qd8 6.Qxf7 Qxd7
					7.Qxd7 Rg8 8.Kxg2
0:03	1/11	Mate10	1023965		1.Ne8 Kg8 2.Nxc7 Rfe8 3.Nxe8 Ra8
					4.Nf6+ Kh8 5.Qxf7 Qb7 6.Nd7 Qxd7
					7.Qxd7 Rg8 8.Qf7 cxd3 9.Qf6+ Rg7
					10.Qxg7#

jm



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