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Subject: Re: Mate in 12

Author: John Merlino

Date: 11:05:03 03/06/06

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On March 06, 2006 at 13:03:20, Rob Basham wrote:

>[D]6n1/1N4p1/6Pp/1B1NpP2/P2kP3/1p3PpK/2P4P/rb2b3 w - - 0 1
>
>Nd8 mates in 12..!

Ten seconds for CM9_R1 on an AMD 2500:

Time	Depth	Score	Positions	Moves
0:00	1/3	0.00	610		1.Nd8 Kc5 2.Nb7+ Kd4
0:00	1/4	0.00	1730		1.Nd8 Kc5 2.Nb7+ Kd4
0:00	1/5	0.00	5559		1.Nd8 Kc5 2.Nb7+ Kd4
0:00	1/6	0.00	26279		1.Nd8 Kc5 2.Nb7+ Kd4
0:00	1/7	0.34	94249		1.Nd8 Kc5 2.Ne6+ Kd6 3.c4 Bxe4
					4.fxe4 Rc1 5.c5+ Rxc5 6.Nxg7 Rxd5
					7.Ne8+ Kc5 8.exd5 Kxd5
0:00	1/8	0.34	131806		1.Nd8 Kc5 2.Ne6+ Kd6 3.c4 Bxe4
					4.fxe4 Rc1 5.c5+ Rxc5 6.Nxg7 Rxd5
					7.Ne8+ Kc5 8.exd5 Kxd5
0:01	1/9	0.75	258407		1.Nd8 Kc5 2.Ne6+ Kd6 3.Nb6 Ke7
					4.c4 Bxe4 5.fxe4 Rd1 6.Nd5+ Rxd5
					7.cxd5 Nf6
0:02	1/10	1.09	582331		1.Nd8 Kc5 2.Ne6+ Kd6 3.Nb6 Ke7
					4.hxg3 h5 5.cxb3 Bc2 6.Nd5+ Kd6
					7.Nxg7 Bxb3 8.Ne8+ Kc5
0:04	1/11	2.06	1269332		1.Nd8 Kc5 2.Ne6+ Kd6 3.Nb6 Ke7
					4.hxg3 Bb4 5.cxb3 Ra3 6.Nd5+ Kd6
					7.Nd8 Kc5 8.Nb7+ Kd4 9.Nxb4 Rxb3
0:10	2/12	Mate12	3186359		1.Nd8 Kc5 2.Ne6+ Kd6 3.Nb6 Ke7
					4.Nc8+ Kf6 5.Nf8 Kg5 6.hxg3 Bxg3
					7.Ne6+ Kf6 8.Nb6 Ke7 9.Nd5+ Kd6
					10.Nd8 Kc5 11.Nb7+ Kd4 12.c3#
0:16	3/13	Mate12	5652399		1.Nd8 Kc5 2.Ne6+ Kd6 3.Nb6 Ke7
					4.Nc8+ Kf6 5.Nf8 Kg5 6.hxg3 Bxg3
					7.Ne6+ Kf6 8.Nb6 Ke7 9.Nd5+ Kd6
					10.Nd8 Kc5 11.Nb7+ Kd4 12.c3#

jm



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