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Subject: Re: One mate in 10 to solve. Correction!!

Author: John Merlino

Date: 10:24:07 08/10/02

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On August 10, 2002 at 08:58:32, leonid wrote:

>On August 10, 2002 at 08:42:53, leonid wrote:
>
>>Hi!
>>
>>This position have very simple parameter for search but in the same is slow for
>>my program. This is the reason why I prefer to say in advance its depth.
>>
>>[D]2q1k1q1/1qrqNqr1/Q3q2Q/1QB1N1bQ/2B1N1b1/P3n2P/ppQ1n1Qp/3RKR2 w - -

Chessmaster 9000, on a PIII-733, announces Mate in 10 in 1:05:

Time	Depth	Score	Positions	Moves
0:01	1/3	12.40	70313		1.Nd6+ Qxd6 2.Bxf7+ Kd8 3.Qxd7+
					Bxd7 4.N7c6+ Rxc6 5.Q5xg5+ Rxg5
					6.Qhxg5+ Qxg5 7.Qxg5+ Qf6 8.Rxf6
0:11	1/4	11.09	594011		1.Nd6+ Qxd6 2.Bxf7+ Kd8 3.Qxd7+
					Qdxd7 4.N7c6+ Rxc6 5.Qa5+ Qcc7
					6.Rxd7+ Bxd7 7.Nxc6+ Qxc6 8.Qxc7+
					Qxc7 9.Bxg8 Nxg2+ 10.Kxe2
0:45	1/5	18.46	2441915		1.Nd6+ Qxd6 2.Bxf7+ Kd8 3.Qxd7+
					Qdxd7 4.N7c6+ Rxc6 5.Bb6+ Qcc7
					6.Rxd7+ Bxd7 7.Bxc7+ Qxc7 8.Nxc6+
					Qxc6 9.Q6xg5+ Rxg5 10.Qhxg5+ Qxg5
					11.Qxg5+ Kc7 12.Qxe3
1:05	1/6	Mate10	3688323		1.Nd6+ Qxd6 2.Bxf7+ Kd8 3.Qxd7+
					Qdxd7 4.N7c6+ Rxc6 5.Bb6+ Qcc7
					6.Bxc7+ Kc8 7.Qxb7+ Kxb7 8.Qhxc6+
					Qxc6 9.Qgxc6+ Kc8 10.Qa8#

>Since I was forced to come back to my position, I will put here the next 10
>moves mate that I see to be much easier.
>
>[D]N1q1k2r/1R1n1q1N/NbPpPrq1/1P2N1B1/1nBP2nQ/1Ppp1p2/3R4/1K3n2 w - -

This one took one second:

Time	Depth	Score	Positions	Moves
0:00	1/3	4.83	9030		1.Nxf6+ Qgxf6 2.exf7+ Kf8 3.Ng6+
					Kg7 4.Bxf6+ Ngxf6 5.Qxh8+ Qxh8
					6.f8=Q+ Qxf8 7.Nxf8 Kxf8
0:00	1/3	8.23	11252		1.exd7+ Qcxd7 2.cxd7+ Ke7 3.Nxg6+
					Qxg6 4.Bxf6+ Nxf6 5.Qxf6+ Qxf6
					6.d8=Q+ Kxd8 7.Nxf6
0:00	1/3	10.33	12337		1.cxd7+ Qfxd7 2.exd7+ Qxd7 3.Rb8+
					Qd8 4.N6c7+ Bxc7 5.Nxc7+ Ke7 6.Nxg6+
					Kd7 7.Rxd8+ Rxd8
0:00	1/4	12.51	25498		1.cxd7+ Qfxd7 2.exd7+ Qxd7 3.Rb8+
					Qd8 4.N6c7+ Bxc7 5.Nxc7+ Ke7 6.Nxg6+
					Kd7 7.Rxd8+ Kxc7 8.Nxf6 Kxd8
0:01	1/5	Mate10	114321		1.cxd7+ Qfxd7 2.exd7+ Qxd7 3.Rb8+
					Qd8 4.Nxf6+ Qxf6 5.N6c7+ Bxc7 6.Qxh8+
					Qxh8 7.Nxc7+ Kf8 8.Rxd8+ Kg7 9.Rd7+
					Kf8 10.Ng6#
0:05	1/6	Mate10	381541		1.cxd7+ Qfxd7 2.exd7+ Qxd7 3.Rb8+
					Qd8 4.Nxf6+ Qxf6 5.N6c7+ Bxc7 6.Qxh8+
					Qxh8 7.Nxc7+ Kf8 8.Rxd8+ Kg7 9.Rd7+
					Kf8 10.Ng6#

jm



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