Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Mate in 10 or 11.....End Game Study For Engines

Author: Stuart Cracraft

Date: 13:17:18 07/17/04

Go up one level in this thread


On July 17, 2004 at 10:27:34, Rob Basham wrote:

>[D]1k6/1P6/K7/8/P7/2P5/8/8 w - - 0 1
>
>The new Crazy Bishop (oo52) plays 1. a5 and
>ann. mate in just 15 seconds!
>
>See if your engine can do that well...!
>
>
>
>P3/850

I don't know how Crazy Bishop did it that quickly but
suspect one-move-response extension or singular, which
I don't have presently. If someone thinks it is something
else, let us all know.

Here's my program GA pounding at the position. I do not
know why it fails to produce a PV of the full length of each
iteration. Perhaps someone can comment?

4. c3c4  0.00 2964      150 c3c4 b8c7 a6a7 c7d7
5. c3c4  0.00 3964      184 c3c4 b8c7 a6a7 c7d7 b7b8Q
5.> c3c4  0.00 10942      506 c3c4 b8c7 a6a7 c7d6 b7b8Q d6c5
6. c3c4  0.01 10942      874 c3c4 b8c7 a6a7 c7c6 b7b8Q c6c5
7. a4a5  0.02 10935     3167 a4a5 b8c7 a6a7 c7d7 b7b8Q d7c6 c3c4
8. c3c4  0.04 10942     6067 c3c4 b8c7 a6a7 c7c6 b7b8Q c6c5 b8f4 c5c6
9. c3c4  0.08 10944    16335 c3c4 b8c7 a6a7 c7c6 b7b8Q c6c5 b8b5 c5d4 b5d5 d4c3

10. a4a5  0.22 10945    46240 a4a5 b8c7 a6a7 c7d7 b7b8Q d7c6 b8e5 c6d7 a7b7
11. c3c4  0.48 10954   112187 c3c4 b8c7 a6a7 c7c6 b7b8Q c6c5 b8b5 c5d4 b5d5 d4c3
 a7b7
12. a4a5  1.30 10949   304143 a4a5 b8c7 a6a7 c7d7 b7b8Q d7e6 b8b5 e6f6 c3c4 f6e7
 a7b7 e7f6 a5a6
13. c3c4  2.34 10954   539306 c3c4 b8c7 a6a7 c7c6 b7b8Q c6c5 b8b5 c5d4 b5d5 d4e3
 d5e5 e3f3 a7b7
14. c3c4  5.53 10958  1247541 c3c4 b8c7 a6a7 c7c6 b7b8Q c6c5 b8b5 c5d4 b5d5 d4c3
 a4a5 c3b4
15. c3c4 10.83 10958  2336432 c3c4 b8c7 a6a7
16. c3c4 16.86 11953  3609902 c3c4 b8c7 a6a7
17. c3c4 38.23 12947  7225623 c3c4
18. a4a5 74.75 11950 12451239 a4a5 b8c7 a6a7 c7c6 a5a6 c6c7 b7b8Q c7c6
19. a4a5 76.70 12950 12770462 a4a5 b8c7 a6a7 c7c6 a5a6 c6c7 b7b8Q c7c6 b8b7 c6c5
 a7b8 c5c4 a6a7 c4c3 b8c7 c3d4 b7b6 d4d5 a7a8R
19.> a4a5 141.99 18941 22994508 a4a5
20. a4a5 459.06 18944 66139132 a4a5



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.