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Subject: Re: Unusual test position

Author: Tom Brake

Date: 06:09:28 07/09/04

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On July 09, 2004 at 07:05:03, Jason Kent wrote:

>[D]8/1R6/6kp/1p1r4/1P3P2/P5PP/6K1/8 b - - 4 45
>
>On my computer Ruffian 1.05 and cm9k reccomend playing f5 with a score of 0.00
>here.  Crafty doesn't see the draw and neither do ruffian and cm9k after 1 more
>ply?!
Given that it's black to move, do you mean 45. ... Kf5?  instead of f5?

I don't know what your copy of CM9k is saying though, mine gives:

Time	Depth	Score	Positions	Moves
0:00	1/3	2.44	1158		45...Kf5 46.Kf2 Rd2+ 47.Ke3
0:00	1/4	2.60	3226		45...Kf5 46.Kf3 Rd3+ 47.Kf2 Rd5
					48.Ke3
0:00	1/5	2.60	7112		45...Kf5 46.Kf3 Rd3+ 47.Kf2 Rd5
					48.Ke3
0:00	1/6	2.60	20589		45...Kf5 46.Kf3 Rd3+ 47.Kf2 Rd5
					48.Ke3 h5
0:00	2/7	2.78	42090		45...Kf5 46.Rb6 h5 47.Rh6 Ke4 48.Re6+
					Kf5 49.Re5+ Rxe5 50.fxe5 Kxe5
0:00	2/7	2.63	62062		45...Rd2+ 46.Kf3 Rd3+ 47.Kg4 h5+
					48.Kh4 Rxa3 49.Rxb5 Rb3 50.Rb7
					Kf6 51.g4
0:00	3/8	2.67	107282		45...Rd2+ 46.Kf3 Rd3+ 47.Kg4 Rxa3
					48.Rxb5 Rb3 49.Rb6+ Kg7 50.b5 h5+
					51.Kxh5 Rxg3
0:01	4/9	2.65	195199		45...Rd2+ 46.Kf3 Rd3+ 47.Kg4 Rxa3
					48.Rxb5 Rb3 49.Rb6+ Kf7 50.f5 Ke7
					51.Re6+ Kf7
0:03	5/10	2.70	419993		45...Rd2+ 46.Kf3 Rd3+ 47.Kg4 Rxa3
					48.Rxb5 Rb3 49.Rb6+ Kf7 50.f5 Ke7
					51.h4 Kf7 52.Rxh6 Rxb4+ 53.Kg5
0:07	6/11	2.74	1058205		45...Rd2+ 46.Kf3 Rd3+ 47.Kg4 Rxa3
					48.f5+ Kf6 49.Rxb5 h5+ 50.Kf4 Rd3
					51.Rb6+ Kf7 52.b5 Rb3 53.g4 Rb4+
					54.Kg5 hxg4 55.hxg4
0:19	7/12	2.81	2900962		45...Rd2+ 46.Kf3 Rd3+ 47.Kg4 Rxa3
					48.f5+ Kf6 49.Rxb5 h5+ 50.Kh4 Rd3
					51.g4 hxg4 52.hxg4 Rd4 53.Rb6+
					Kf7 54.Rb7+ Kf6 55.b5
0:46	8/13	2.88	7131750		45...Rd2+ 46.Kf3 Rd3+ 47.Kg4 Rxa3
					48.f5+ Kf6 49.Rxb5 Rb3 50.Rb6+
					Kf7 51.Kf4 Ke7 52.b5 Kf7 53.Ke5
					Rxg3 54.Rf6+ Ke7 55.Re6+ Kf7 56.Rxh6


life just keeps getting better for White here.



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