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Subject: Re: Mate in 11 moves

Author: John Merlino

Date: 10:20:52 08/06/02

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On August 04, 2002 at 22:04:20, John Merlino wrote:

>On August 02, 2002 at 15:31:50, Eduard Nemeth wrote:
>
>>[D]3q2rk/p4prp/1p2pN2/2pP4/7Q/P1P3R1/2P3PP/7K w - - 0 27
>>
>>in which time, your program find this mate in "the thinking line(!)" ?
>>
>>My full german text , with my game to position, you find here:
>>
>>http://f50.parsimony.net/forum200775/messages/757.htm
>>
>>Eduard
>
>I have nothing stunning to report, I'm afraid. On my relatively humble PIII-733,
>CM9000 did not announce a mate in over 30 minutes, and I didn't have more CPU
>time to devote to the problem. Maybe I'll let it run overnight on Monday (on my
>slower PIII-600, unfortunately). There was a VERY long fail high on d6 at depth
>14 that took up most of the time.

I let this position run overnight on my slower PIII-600, and Chessmaster 9000
announced Mate in 11 in just under two hours:

Time	Depth	Score	Positions	Moves
0:00	1/4	4.19	3344		27.Rh3 Qxf6 28.Qxf6 exd5 29.Rg3
					h5 30.Rg5
0:00	1/5	4.19	8314		27.Rh3 Qxf6 28.Qxf6 exd5 29.Rg3
					h5 30.Rg5
0:00	1/6	5.11	20121		27.Rh3 Qxf6 28.Qxf6 exd5 29.Rg3
					b5 30.Rxg7 Rxg7 31.Qd8+ Rg8 32.Qxd5
0:00	1/7	5.22	60065		27.Rh3 Qxf6 28.Qxf6 exd5 29.Rg3
					b5 30.Rxg7 Rxg7 31.Qe7 f5 32.Qxc5
0:01	1/8	5.22	110571		27.Rh3 Qxf6 28.Qxf6 exd5 29.Rg3
					b5 30.Rxg7 Rxg7 31.Qe7 f5 32.Qxc5
0:05	1/9	6.23	417530		27.Rh3 Qxf6 28.Qxf6 exd5 29.Rg3
					b5 30.Rxg7 Rxg7 31.Qe7 Rg8 32.Qxf7
					a6 33.Qf6+ Rg7 34.Qf8+ Rg8 35.Qxc5
0:09	1/9	10.35	775111		27.d6 Qa8 28.d7 c4 29.Nxg8 Rxg3
					30.hxg3 Kxg8 31.d8=Q+ Qxd8 32.Qxd8+
					Kg7 33.Qd4+ Kg6 34.Qxc4
0:13	2/10	10.47	1053637		27.d6 Qa8 28.d7 c4 29.Nxg8 Rxg3
					30.hxg3 Kxg8 31.d8=Q+ Qxd8 32.Qxd8+
					Kg7 33.Qd4+ Kg6 34.Qxc4 h5 35.Qf4
0:22	3/11	10.52	1894000		27.d6 Qa8 28.d7 c4 29.Nxg8 Rxg3
					30.hxg3 Kxg8 31.d8=Q+ Qxd8 32.Qxd8+
					Kg7 33.Qd4+ Kf8 34.Qxc4 Kg8 35.Qd4
0:55	4/12	10.94	4994475		27.d6 Qa8 28.d7 c4 29.Nxg8 Rxg3
					30.hxg3 Kxg8 31.d8=Q+ Qxd8 32.Qxd8+
					Kg7 33.Qd4+ Kg6 34.Qxc4 h5 35.Qc7
					Kf6 36.Qxa7
3:36	5/13	11.74	20476220	27.d6 Qa8 28.d7 c4 29.a4 e5 30.Nxg8
					Rxg3 31.hxg3 Kxg8 32.d8=Q+ Qxd8
					33.Qxd8+ Kg7 34.Qg5+ Kf8 35.Qxe5
					h5 36.Qb8+ Kg7 37.Qxa7
25:33	6/14	14.90	145068336	27.d6 Qa8 28.d7 b5 29.Nxg8 Qd5
					30.d8=Q Qxd8 31.Qxd8 Rxg3 32.hxg3
					Kg7 33.Qg5+ Kf8 34.Nf6 Ke7 35.Ne4+
					Kf8 36.Qxc5+ Kg7 37.Qg5+ Kf8 38.Qxb5
1:24:22	7/15	24.03	504909361	27.d6 Qa8 28.d7 c4 29.Nxg8 Rxg3
					30.Qxg3 h6 31.Nf6 Qf8 32.Qf4 Kg7
					33.Ne8+ Kh7 34.d8=Q Qg7 35.Nxg7
					a6 36.Nxe6
1:58:28	7/15	Mate11	741946617	27.Rh3 Qxf6 28.Qxf6 exd5 29.Rg3
					d4 30.h4 d3 31.cxd3 c4 32.h5 h6
					33.Qxh6+ Rh7 34.Qf6+ Rhg7 35.Rxg7
					Rxg7 36.h6 cxd3 37.Qxg7#
2:17:01	8/16	Mate11	891379624	27.Rh3 Qxf6 28.Qxf6 exd5 29.Rg3
					d4 30.h4 d3 31.cxd3 c4 32.h5 h6
					33.Qxh6+ Rh7 34.Qf6+ Rhg7 35.Rxg7
					Rxg7 36.h6 cxd3 37.Qxg7#

jm



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