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Subject: Re: Test for Dedicated Units, and a Mate Test for PC Programs

Author: John Merlino

Date: 20:58:21 07/25/05

Go up one level in this thread


On July 25, 2005 at 22:35:56, Terry McCracken wrote:

>A position taken from a G/2 I played earlier today with a pretty finish.
>
>[D]2r2rk1/3R2pp/p5n1/1pp1Pp2/5P2/2B2Q2/qPP3PP/3R2K1 w
>
>For those who want to solve it without a computer, I'll not give the killer
>move:)
>
>Terry

I spotted it, but that's only because I knew what to look for. :-)

CM9_R1 on a P4-2.4 finds the move in less than one second, announces mate in
less than two seconds, and finally settles on mate in 10 after 0:21....

Time	Depth	Score	Positions	Moves
0:00	1/4	5.54	5719		1.Qb7 Rfe8 2.Rxg7+ Kf8 3.Rxh7 Qg8
					4.e6
0:00	1/4	9.08	19188		1.e6 Rfd8 2.Qb7 Rxd7 3.Qxc8+ Nf8
					4.exd7
0:00	1/5	9.17	37014		1.e6 Rf6 2.Qb7 Qxe6 3.Qxc8+ Nf8
					4.Bxf6 Qxf6
0:00	1/5	9.34	44109		1.Qb7 Rfe8 2.Rxg7+ Kf8 3.Rxh7 Ne7
					4.Rxe7 Rb8
0:00	1/6	9.66	83103		1.Qb7 Rf7 2.Qxc8+ Nf8 3.Rd8 b4
					4.e6 bxc3 5.exf7+ Qxf7
0:00	1/6	11.09	139654		1.Rxg7+ Kxg7 2.e6+ Rf6 3.Qb7+ Kf8
					4.Qxc8+ Kg7 5.Qc7+ Kh6 6.Bxf6
0:00	1/7	15.03	222649		1.Rxg7+ Kxg7 2.e6+ Rf6 3.Qb7+ Kf8
					4.Qxc8+ Kg7 5.Qc7+ Kh6 6.Bxf6 Ne7
					7.Qxe7
0:01	1/8	Mate13	573117		1.Rxg7+ Kxg7 2.e6+ Rf6 3.Qb7+ Kf8
					4.Qxc8+ Kg7 5.Qc7+ Kh6 6.Bxf6 Qb3
					7.Qg7+ Kh5 8.Qxh7+ Kg4 9.Qxg6+
					Kxf4 10.Rf1+ Ke4 11.Qxf5+ Ke3 12.Qf3+
					Kd2 13.Qf2#
0:04	1/9	Mate11	1389437		1.Rxg7+ Kxg7 2.e6+ Rf6 3.Qb7+ Kf8
					4.Qxc8+ Kg7 5.Qb7+ Kh6 6.Bxf6 Qb3
					7.Bg5+ Kh5 8.g4+ Kxg4 9.Qg2+ Kh5
					10.Qe2+ Qf3 11.Qxf3#
0:10	1/10	Mate11	3411889		1.Rxg7+ Kxg7 2.e6+ Rf6 3.Qb7+ Kf8
					4.Qxc8+ Kg7 5.Qb7+ Kh6 6.Bxf6 Qb3
					7.Bg5+ Kh5 8.g4+ Kxg4 9.Qg2+ Kh5
					10.Qe2+ Qf3 11.Qxf3#
0:21	1/11	Mate10	7324735		1.Rxg7+ Kxg7 2.e6+ Rf6 3.Qb7+ Kf8
					4.Qxc8+ Kg7 5.Qb7+ Kh6 6.Bxf6 Qb3
					7.Bg5+ Kh5 8.Qxh7+ Kg4 9.cxb3 Nxf4
					10.Qh4#
0:49	1/12	Mate10	17108271	1.Rxg7+ Kxg7 2.e6+ Rf6 3.Qb7+ Kf8
					4.Qxc8+ Kg7 5.Qb7+ Kh6 6.Bxf6 Qb3
					7.Bg5+ Kh5 8.Qxh7+ Kg4 9.cxb3 Nxf4
					10.Qh4#

jm



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