Author: Heiner Marxen
Date: 10:02:55 10/26/01
Go up one level in this thread
On October 24, 2001 at 19:27:04, Angrim wrote:
>On October 23, 2001 at 13:12:38, Andrew Williams wrote:
>
>>Hi,
>>
>>My program lost this game against a crafty clone on ICC recently:
>>
>>[Event "ICS rated blitz match"]
>>[Site "204.178.125.65"]
>>[Date "2001.10.21"]
>>[Round "-"]
>>[White "MoonShot"]
>>[Black "PostModernist"]
>>[Result "1-0"]
>>[WhiteElo "2859"]
>>[BlackElo "2772"]
>>[TimeControl "600+2"]
>>
>>1. d4 Nf6 2. c4 c6 3. Nc3 e6 4. e4 Bb4 5. Bd3 d5 6. e5 dxc4 7. Bxc4 Nd5 8.
>>Ne2 b6 9. O-O O-O 10. Qd3 Be7 11. Bd2 Bb7 12. Qg3 Kh8 13. Ne4 Ba6 14. Rac1
>>Bxc4 15. Rxc4 Qd7 16. Bg5 Na6 17. Bxe7 Nxe7 18. Nd6 Nc7 19. Rfc1 Rad8 20.
>>Qf3 Ne8 21. Ne4 Kg8 22. Qh3 a5 23. a4 Nc7 24. Qg4 Kh8 25. Qh5 Kg8 26. R1c3
>>Qd5 27. Nf6+ gxf6 28. Rg3+ Kh8 29. Qh6 Ng6 30. Rh3
>>{PostModernist resigns} 1-0
>>
>>
>>The move 27.Nf6+ wins everything immediately. MoonShot (crafty 18.12
>>on a K7 1.33GHz) found that in 14 seconds (albeit with hash-tables
>>already full). With some fiddling about with null move rules, PM can
>>find it in 37 seconds from a "standing start" (K7 1.2GHz). I'd be
>>interested to know how other programs do on this.
>>
>>[D]3r1rk1/2n1nppp/1pp1p3/p2qP2Q/P1RPN3/2R5/1P2NPPP/6K1 w - - bm Nf6
>>
>>
>>Regards
>>
>>Andrew
>
>Interesting position to feed to the mate solver programs, since it
>comes from a real game, and is a rather deep win. Here are the
>results from PN^2 search on Athlon 1.2ghz.
>
>proved that move e4f6 wins, 17 turns
>PN2:215756548 evals, 11265632 expands, 407.84 seconds
>
>Angrim
Hello Angrim,
I'm not sure what "17 turns" does mean, but I'm sure it is not the solution
depth in plies. Even after 1.Nf6+ gxf6 Chest does not find a mate in 10
(28.4 hours on a K7/600 with 350 MB hash).
Heiner
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.