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Subject: Re: Test Position... Mate in 9.

Author: John Merlino

Date: 15:37:49 01/06/06

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On January 05, 2006 at 01:41:19, Eric Oldre wrote:

>
>
>[d]4r1k1/1br2p2/1qn1p2Q/pp1nP3/3P3N/R1p5/1P2BPPP/2R3K1 w - - 0 23
>
>This is a mate in 10 or 9, depending on which rook you take the pawn on C3 with.
>This position occured in a game today with Latista as White and Yace Paderborn
>as black. Latista missed the mate opportunity and went on to squander the game
>away. :(
>
>Eric

It's a Mate in 9, as confirmed by The King in less than one second on an AMD
2500:

Time	Depth	Score	Positions	Moves
0:00	1/3	0.75	1378		23.bxc3 Nxd4 24.Qg5+ Kh8 25.cxd4
					Rxc1+ 26.Qxc1
0:00	1/4	1.18	6650		23.bxc3 Nxd4 24.cxd4 Rxc1+ 25.Qxc1
					f6 26.exf6 Nxf6
0:00	1/5	1.27	45623		23.bxc3 Nxe5 24.dxe5 b4 25.Qg5+
					Kf8 26.cxb4 Rxc1+ 27.Qxc1 Qxb4
0:00	1/5	1.99	74536		23.Rcxc3 Nxc3 24.Rxc3 Nxe5 25.Nf5
					exf5 26.Qxb6 Rxc3 27.bxc3
0:00	1/6	Mate09	126310		23.Rcxc3 Nxc3 24.Rxc3 Nxe5 25.Rg3+
					Ng6 26.Nxg6 Rc1+ 27.Bf1 Rxf1+ 28.Kxf1
					Bxg2+ 29.Rxg2 fxg6 30.Rxg6+ Kf7
					31.Qg7#
0:00	1/7	Mate09	183922		23.Rcxc3 Nxc3 24.Rxc3 Nxe5 25.Rg3+
					Ng6 26.Nxg6 Rc1+ 27.Bf1 Rxf1+ 28.Kxf1
					Bxg2+ 29.Rxg2 fxg6 30.Rxg6+ Kf7
					31.Qg7#
0:01	1/8	Mate09	335472		23.Rcxc3 Nxc3 24.Rxc3 Nxe5 25.Rg3+
					Ng6 26.Nxg6 Rc1+ 27.Bf1 Rxf1+ 28.Kxf1
					Bxg2+ 29.Rxg2 fxg6 30.Rxg6+ Kf7
					31.Qg7#
0:02	1/9	Mate09	762472		23.Rcxc3 Nxc3 24.Rxc3 Nxe5 25.Rg3+
					Ng6 26.Nxg6 Rc1+ 27.Bf1 Rxf1+ 28.Kxf1
					Bxg2+ 29.Rxg2 fxg6 30.Rxg6+ Kf7
					31.Qg7#

jm



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