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Subject: Re: Testposition by Yasser Seirawan for the Computers

Author: John Merlino

Date: 16:52:38 08/23/05

Go up one level in this thread


On August 23, 2005 at 07:52:21, Eduard Nemeth wrote:

>Testposition by Yasser Seirawan for Computers, Year 2000:
>
>[D]2R5/5p1k/1K4pp/B7/6P1/7r/8/8 w - - 0 1
>
>1. g5!!

CM9_R1 on a moderately busy AMD 2500 takes almost 20 minutes to find the move:

Time	Depth	Score	Positions	Moves
0:00	1/5	2.63	18907		1.Bc3 g5 2.Rh8+ Kg6 3.Rg8+ Kh7
					4.Rg7+ Kh8 5.Be5 f6 6.Bxf6 Rf3
					7.Be5
0:00	1/6	2.63	35669		1.Bc3 g5 2.Rh8+ Kg6 3.Rg8+ Kh7
					4.Rg7+ Kh8 5.Be5 f6 6.Bxf6 Rf3
					7.Be5
0:01	1/7	2.33	138685		1.Bc3 f6 2.Bxf6 g5 3.Rc7+ Kg6 4.Rc6
					h5 5.Bd4+ Kf7 6.Rf6+ Ke7
0:02	1/8	1.61	331630		1.Bc3 f6 2.Rc7+ Kg8 3.Bxf6 Rg3
					4.Rc4 h5 5.g5 Rb3+ 6.Kc5
0:03	2/9	1.54	615448		1.Bc3 f6 2.Rc7+ Kg8 3.Bxf6 Rf3
					4.Rg7+ Kf8 5.Be5 h5 6.g5 Re3
0:05	3/10	1.39	1600332		1.Bc3 f6 2.g5 Rxc3 3.Rxc3 hxg5
					4.Rg3 Kh6 5.Kc5 f5 6.Kd4 Kh5
0:09	4/11	1.27	3255482		1.Bc3 f6 2.g5 Rxc3 3.Rxc3 hxg5
					4.Rh3+ Kg7 5.Kc5 f5 6.Kd4 g4 7.Rg3
					g5
0:16	5/12	1.35	6259922		1.Bc3 f6 2.g5 Rxc3 3.Rxc3 hxg5
					4.Kc5 g4 5.Kd4 f5 6.Ke3 g5 7.Kf2
					f4 8.Rc2
0:30	6/13	1.32	12251363	1.Bc3 f6 2.g5 Rxc3 3.Rxc3 hxg5
					4.Kc5 g4 5.Kd4 g5 6.Rc5 Kg6 7.Ke4
					g3 8.Kf3
1:01	7/14	1.36	26832657	1.Bc3 f6 2.g5 Rxc3 3.Rxc3 fxg5
					4.Kc5 h5 5.Kd4 h4 6.Ke3 Kh6 7.Kf3
					Kh5 8.Rc4 h3
2:09	8/15	1.45	60333623	1.Bc3 f6 2.g5 Rxc3 3.Rxc3 fxg5
					4.Rc7+ Kg8 5.Kc5 h5 6.Kd4 g4 7.Ke3
					g3 8.Kf3 h4 9.Kg2 g5 10.Rc2
8:41	9/16	0.42	241015936	1.Bc3 g5 2.Rh8+ Kg6 3.Rg8+ Kh7
					4.Rg7+ Kh8 5.Be5 Re3 6.Rxg5+ Kh7
					7.Rh5 Kg6 8.Bf4 Re4 9.Rxh6+ Kg7
					10.Bd2 Rxg4 11.Kc5 f5 12.Rh3 f4
					13.Rf3 Rg5+ 14.Kd4
19:53	9/16	0.89	510657536	1.g5 hxg5 2.Bc3 Rxc3 3.Rxc3 f5
					4.Kc5 g4 5.Rc1 Kh6 6.Kd4 f4 7.Kd3
					g5 8.Ke2 Kh5 9.Kf1 g3 10.Kg2

jm



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