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Subject: Re: Easy Mate

Author: John Merlino

Date: 15:31:31 03/21/04

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On March 21, 2004 at 08:39:38, Rex wrote:

>Not sure how programs see this...but how soon does your favorite find the mate?
>
>[D]r4rk1/p2nqppp/2p2n2/3p4/pP3P2/2Pp1b2/P2N1KPP/R1B3QR b - - 1 1

CM9000, SKR personality on a P4-2.4, finds Mate in 13 in one second, Mate in 12
a few seconds later, Mate in 10 in just under one minute, and Mate in 9 in just
over four minutes:

Time	Depth	Score	Positions	Moves
0:00	1/3	-12.88	6288		1...Qe2+ 2.Kg3 Nh5+ 3.Kh3 Bxg2+
					4.Kh4 Bxh1 5.Qxh1 Nxf4
0:00	1/4	-12.43	20516		1...Qe2+ 2.Kg3 Nh5+ 3.Kh3 Bxg2+
					4.Kh4 Ndf6 5.Nf3 Qxf3
0:00	1/5	-17.32	98221		1...Qe2+ 2.Kg3 Nh5+ 3.Kh3 Bxg2+
					4.Qxg2 Nxf4+ 5.Kg3 Qxg2+ 6.Kxf4
					Qxh1 7.Nf3
0:01	1/6	-Mate13	258265		1...Qe2+ 2.Kg3 Nh5+ 3.Kh3 Nxf4+
					4.Kg3 Nh5+ 5.Kh3 Bg4+ 6.Kh4 g5+
					7.Kxg5 h6+ 8.Kxh6 Qe6+ 9.Kg5 Qf6+
					10.Kxg4 Ne5+ 11.Kh3 Nf4+ 12.Kg3
					Ne2+ 13.Kh3 Qh6#
0:05	1/7	-Mate12	1037697		1...Qe2+ 2.Kg3 Nh5+ 3.Kh4 Qe7+
					4.Kh3 Nxf4+ 5.Kg3 Nh5+ 6.Kh3 Bg4+
					7.Kxg4 Ndf6+ 8.Kh4 g5+ 9.Kh3 g4+
					10.Kh4 Ne4+ 11.Kxg4 Qg5+ 12.Kh3
					Nf4#
0:16	1/8	-Mate12	2955069		1...Qe2+ 2.Kg3 Nh5+ 3.Kh4 Qe7+
					4.Kh3 Nxf4+ 5.Kg3 Nh5+ 6.Kh3 Bg4+
					7.Kxg4 Ndf6+ 8.Kh4 g5+ 9.Kh3 g4+
					10.Kh4 Ne4+ 11.Kxg4 Qg5+ 12.Kh3
					Nf4#
0:54	1/9	-Mate10	9173689		1...Qe2+ 2.Kg3 Bxg2 3.Qxg2 Nh5+
					4.Kh4 Qxg2 5.Nf1 f5 6.h3 Qf2+ 7.Kxh5
					Nf6+ 8.Kg5 Ne4+ 9.Kh5 g6+ 10.Kh6
					Qh4#
1:50	1/10	-Mate10	18406327	1...Qe2+ 2.Kg3 Bxg2 3.Qe1 Ne4+
					4.Kh4 Ne5 5.Qg3 Ng6+ 6.Qxg6 hxg6
					7.Nxe4 Qh5+ 8.Kg3 Qf3+ 9.Kh4 Qh3+
					10.Kg5 Qh5#
4:05	1/11	-Mate09	43719588	1...Qe2+ 2.Kg3 Bxg2 3.Qe1 Ne4+
					4.Kh4 Ne5 5.Qg3 g6 6.Qg5 Bxh1 7.Nf3
					Nxf3+ 8.Kh3 Qxh2+ 9.Kg4 Qg3#

jm



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