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Subject: Re: Mate in 14

Author: John Merlino

Date: 20:36:16 07/04/02

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On July 04, 2002 at 21:43:47, Art Basham wrote:

>Rxf6+ mates in 14...!
>
>[D]1r3k1r/6pp/p3Qp2/P7/q1P5/8/1n4PP/1R3R1K w - -
>
>This ending shows the power of a Queen and a Rook working together!

Chessmaster 9000 announces Mate in 16 after 22 seconds, and then announces Mate
in 14 after 1:03 on a PIII-733:

Time	Depth	Score	Positions	Moves
0:00	1/3	0.00	7193		1.Qd6+ Kf7 2.Qc7+ Kg6 3.Qg3+ Kf7
					4.Qc7+
0:00	1/3	4.90	14836		1.Rxf6+ gxf6 2.Qxf6+ Kg8 3.Qg5+
					Kf7 4.Rf1+ Ke8 5.Qe5+ Kd8 6.Qxb8+
					Kd7 7.Qxh8
0:00	1/4	5.01	39198		1.Rxf6+ gxf6 2.Qxf6+ Kg8 3.Qg5+
					Kf7 4.Rf1+ Ke8 5.Qe5+ Kd8 6.Qxb8+
					Kd7 7.Qxh8 Qxc4 8.Qxh7+ Kd6
0:02	2/5	5.26	247831		1.Rxf6+ gxf6 2.Qxf6+ Kg8 3.Qg5+
					Kf7 4.Rf1+ Ke8 5.Re1+ Kf8 6.Qf5+
					Kg8 7.Qd5+ Kf8 8.Qd6+ Kg8 9.Qxb8+
					Kf7 10.Qxh8 Qc2
0:06	2/6	7.29	735223		1.Rxf6+ gxf6 2.Qxf6+ Kg8 3.Qg5+
					Kf7 4.Rf1+ Ke8 5.Qe5+ Kd8 6.Qxb8+
					Kd7 7.Qxb2 Qxc4 8.Rd1+ Ke6 9.Qxh8
					Qc7
0:22	3/7	Mate16	2623468		1.Rxf6+ gxf6 2.Qxf6+ Kg8 3.Qg5+
					Kf7 4.Rf1+ Ke8 5.Re1+ Kf8 6.Qf4+
					Kg8 7.Qxb8+ Kf7 8.Qf4+ Kg8 9.Qg5+
					Kf8 10.Qe7+ Kg8 11.Rf1 Qe8 12.Qxe8+
					Kg7 13.Qf7+ Kh6 14.Qf6+ Kh5 15.Rf5+
					Kg4 16.Qg5#
1:03	3/8	Mate14	7342086		1.Rxf6+ gxf6 2.Qxf6+ Kg8 3.Qg5+
					Kf7 4.Rf1+ Ke8 5.Re1+ Kf8 6.Qf4+
					Kg8 7.Qxb8+ Kf7 8.Qc7+ Kg8 9.Qd8+
					Qe8 10.Rxe8+ Kf7 11.Qd7+ Kf6 12.Qd6+
					Kf7 13.Re7+ Kg8 14.Qd8#

jm



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