Author: J. Wesley Cleveland
Date: 13:10:20 06/27/02
Go up one level in this thread
On June 27, 2002 at 13:38:32, Ferdinand S. Mosca wrote:
>
>The king and pawn game is a very interesting exercise to program, is it
>difficult to perfect this ending?.
>
>How long will it take your favorite programs to see that 36. h5 is good for
>black.
>[D]8/k6p/8/2P2p2/2P1p3/7K/1P3P2/8 b - - 0 35
My modified crafty likes h5 after 4 secs, but takes 9 minutes to see it is
winning on a PIII 450, 192m hash.
12-> 3.96 1.24 1. ... h5 2. b4 f4 3. c6 e3 4. c7 Kb7
5. c8=Q+ Kxc8
13 5.45 1.50 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
exf3 5. Kf2 Kd7 6. b5 Ke6 7. b6 Kd7
8. Kxf3
13-> 5.81 1.50 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
exf3 5. Kf2 Kd7 6. b5 Ke6 7. b6 Kd7
8. Kxf3
14 7.88 ++ 1. ... h5!!
14 8.49 -- 1. ... h5
14 10.76 1.02 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
exf3 5. Kxf3 h4 6. Kf4 Kd7 7. b5 Kd8
8. b6 h3
14-> 11.21 1.02 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
exf3 5. Kxf3 h4 6. Kf4 Kd7 7. b5 Kd8
8. b6 h3
15 11.82 -- 1. ... h5
15 16.21 1.43 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. b6 Kc6 7. Kf2 h4 8.
Ke3 h3
15-> 17.47 1.43 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. b6 Kc6 7. Kf2 h4 8.
Ke3 h3
16 26.85 ++ 1. ... h5!!
16 27.24 1.03 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. b6 Kc6 7. Kf2 h4 8.
Kg2 e3 9. Kf3
16-> 28.00 1.03 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. b6 Kc6 7. Kf2 h4 8.
Kg2 e3 9. Kf3
17 36.85 0.67 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. c6+ Kb6 7. c7 Kxc7
8. c5 Kb8 9. b6 Kb7 10. Kf2 h4
17-> 38.27 0.67 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. c6+ Kb6 7. c7 Kxc7
8. c5 Kb8 9. b6 Kb7 10. Kf2 h4
18 40.43 -- 1. ... h5
18 57.71 1.03 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kd7 5. b5 Kc7 6. c6 Kb6 7. c7 Kxc7
8. c5 Kb7 9. Kf2 Kc8 10. Ke3 h4
18-> 1:00 1.03 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kd7 5. b5 Kc7 6. c6 Kb6 7. c7 Kxc7
8. c5 Kb7 9. Kf2 Kc8 10. Ke3 h4
19 1:15 ++ 1. ... h5!!
19 1:34 0.39 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. c6+ Kb6 7. c7 Kxc7
8. c5 Kb7 9. b6 Kc6 10. Kf2 h4 11.
Ke3 h3
19-> 1:38 0.39 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. c6+ Kb6 7. c7 Kxc7
8. c5 Kb7 9. b6 Kc6 10. Kf2 h4 11.
Ke3 h3
20 2:24 ++ 1. ... h5!!
20 3:09 -0.11 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. c6+ Kb6 7. c7 Kxc7
8. c5 Kb7 9. b6 Kc6 10. Kf2 h4 11.
Ke3 h3 12. Kf2
20-> 3:13 -0.11 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. c6+ Kb6 7. c7 Kxc7
8. c5 Kb7 9. b6 Kc6 10. Kf2 h4 11.
Ke3 h3 12. Kf2
21 3:52 ++ 1. ... h5!!
21 4:35 -0.74 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. c6+ Kb6 7. c7 Kxc7
8. c5 Kb7 9. b6 Kc6 10. Kf2 h4 11.
Ke3 h3 12. Kf2 e3+ 13. Kf3
21-> 4:42 -0.74 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. c6+ Kb6 7. c7 Kxc7
8. c5 Kb7 9. b6 Kc6 10. Kf2 h4 11.
Ke3 h3 12. Kf2 e3+ 13. Kf3
22 5:42 -0.79 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. c6+ Kb6 7. c7 Kxc7
8. c5 Kb8 9. b6 Kb7 10. Kf2 h4 11.
Kg2 e3 12. Kf3 h3 13. Kg3
22-> 5:50 -0.79 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. c6+ Kb6 7. c7 Kxc7
8. c5 Kb8 9. b6 Kb7 10. Kf2 h4 11.
Kg2 e3 12. Kf3 h3 13. Kg3
23 6:57 ++ 1. ... h5!!
23 8:41 -3.70 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. c6+ Kb6 7. c7 Kxc7
8. c5 Kb7 9. b6 Kc6 10. Kh4 e3 11.
b7 Kxb7 12. Kg3 h4+ 13. Kf3 h3 14.
Kg3 Kc6
23-> 8:58 -3.70 1. ... h5 2. Kg3 Kb7 3. b4 Kc6 4. f4
Kc7 5. b5 Kb7 6. c6+ Kb6 7. c7 Kxc7
8. c5 Kb7 9. b6 Kc6 10. Kh4 e3 11.
b7 Kxb7 12. Kg3 h4+ 13. Kf3 h3 14.
Kg3 Kc6
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.