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Subject: Re: White to play and win !

Author: John Merlino

Date: 13:24:14 04/12/03

Go up one level in this thread


On April 12, 2003 at 14:49:05, Jorge Pichard wrote:

>
>This one is fairly easy for most programs
>
>New game
>[D]8/1p2k2p/8/P4K2/8/7P/8/8 w - - 0 1
>
>Analysis by Fritz 8:
>
>1.Kg5 Kf7 2.Kh6 Kg8 3.h4 Kh8 4.h5 Kg8 5.Kg5 Kf7 6.Kf5 Ke7
>  ±  (0.72)   Depth: 7/13   00:00:00  9kN
>  ±  (0.72)   Depth: 8/15   00:00:00  21kN
>1.Ke5 Kd7 2.Kd5 Kc7 3.h4 Kd8
>  ±  (0.75)   Depth: 8/17   00:00:00  30kN
>  ²  (0.59)   Depth: 9/17   00:00:00  72kN
>1.Kg5 Kf7 2.Kh6 Kg8 3.h4 Kh8 4.Kh5 Kg8 5.Kg4 Kg7 6.Kg5
>  ±  (0.72)   Depth: 9/17   00:00:00  72kN
>  ±  (0.97)   Depth: 23/43   00:00:21  18972kN
>
>(Pichard, MyTown 12.04.2003)

It takes Chessmaster 9000, on a humble P3-733, 58 seconds to see that Ke5 draws,
and another 11 seconds to switch to Kg5:

Time	Depth	Score	Positions	Moves
0:00	9/13	1.71	92100		1.Ke5 Kd7 2.Kf6 Kc6 3.Kg7 h5 4.Kh6
					b5 5.axb6ep Kxb6 6.Kxh5 Kc5 7.Kg5
					Kd5
0:01	10/14	1.80	126543		1.Ke5 Kd7 2.Kf6 Kc6 3.Kg7 h5 4.Kh6
					b5 5.axb6ep h4 6.Kg5 Kxb6 7.Kxh4
					Kc5 8.Kg5
0:01	11/15	1.71	191790		1.Ke5 Kd7 2.Kf6 Kc6 3.Kg7 h5 4.Kh6
					b5 5.axb6ep h4 6.Kg5 Kxb6 7.Kxh4
					Kc5 8.Kg5 Kd5
0:02	12/16	1.83	293504		1.Ke5 Kd7 2.Kf6 Kc6 3.Kg7 h5 4.Kh6
					b5 5.axb6ep h4 6.Kg5 Kxb6 7.Kxh4
					Kc5 8.Kg5 Kd5 9.h4
0:03	13/17	1.83	449095		1.Ke5 Kd7 2.Kf6 Kc6 3.Kg7 h5 4.Kh6
					b5 5.axb6ep h4 6.Kg5 Kxb6 7.Kxh4
					Kc5 8.Kg5 Kd5 9.h4
0:05	14/18	1.92	685474		1.Ke5 Kd7 2.Kf6 Kc6 3.Kg7 h5 4.Kh6
					b5 5.axb6ep h4 6.Kg5 Kxb6 7.Kxh4
					Kc5 8.Kg5 Kd6 9.Kg6 Ke7
0:07	15/19	2.00	1034914		1.Ke5 Kd7 2.Kf6 Kc6 3.Kg7 h5 4.Kh6
					b5 5.axb6ep h4 6.Kg5 Kxb6 7.Kxh4
					Kc5 8.Kg5 Kd5 9.h4 Ke5 10.h5
0:13	16/20	2.19	1660231		1.Ke5 Kd7 2.Kf6 Kc6 3.Kg7 h5 4.Kh6
					b5 5.axb6ep h4 6.Kg5 Kxb6 7.Kxh4
					Kc5 8.Kg5 Kd5 9.h4 Ke5 10.Kg6 Kd5
					11.h5
0:58	17/21	0.08	6384537		1.Ke5 Kd7 2.Kd4 b6 3.axb6 Kc6 4.Kc4
					Kxb6 5.Kd4 Kb5 6.Ke4 h5 7.Kd5 h4
					8.Ke6 Kc4 9.Kf5 Kd5 10.Kg5 Ke5
					11.Kxh4
1:09	17/21	2.50	7711796		1.Kg5 Kf7 2.Kh6 Kg8 3.h4 Kh8 4.Kh5
					Kg7 5.Kg5 Kf7 6.Kf5 Ke7 7.Ke5 h6
					8.h5 Kd7 9.Kf5 Kc6 10.Kg6 Kd5 11.Kxh6
1:15	18/22	2.70	8311843		1.Kg5 Kf7 2.Kh6 Kg8 3.h4 Kh8 4.Kh5
					Kg7 5.Kg5 Kf7 6.Kf5 Ke7 7.Ke5 h5
					8.Kf5 Kf7 9.Kg5 Ke6 10.Kg6 Ke7
					11.Kxh5 Kd6 12.Kg6
1:27	19/23	2.69	9657884		1.Kg5 Kf7 2.Kh6 Kg8 3.h4 Kh8 4.Kh5
					Kg7 5.Kg5 Kf7 6.Kf5 Ke7 7.Ke5 h5
					8.Kf5 Kf7 9.Kg5 Ke6 10.Kg6 Kd7
					11.Kxh5 Kc6 12.Kg6 Kd5

jm



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