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Subject: How long does it take your program to find Nf6! in this position?

Author: Andrew Williams

Date: 10:12:38 10/23/01

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

One mate to solve :-) (was Re: How long does it take) Angrim 16:27:04 10/24/01
- Re: One mate to solve :-) (was Re: How long does it take) Heiner Marxen 10:02:55 10/26/01
  - Re: One mate to solve :-) (was Re: How long does it take) Angrim 13:49:54 10/26/01
Re: How long does it take your program to find Nf6! in this position? Thorsten Czub 11:00:22 10/24/01
CT-14 on an AMD 1400 does it in 2.4 seconds. Timothy J. Frohlick 10:40:39 10/24/01
- Re: CT-14 on an AMD 1400 does it in 2.4 seconds. Christophe Theron 12:35:00 10/25/01
8 ply to find Nf6 Vincent Diepeveen 07:16:37 10/24/01
- 7 ply / 0 sec to find Nf6 Ingo Bauer 09:54:16 10/24/01
- Re: 8 ply to find Nf6 Robert Hyatt 09:20:33 10/24/01
Stop this, it hurts! (4 minutes) Gian-Carlo Pascutto 02:15:37 10/24/01
- Re: Stop this, it hurts! (4 minutes) Gian-Carlo Pascutto 04:38:11 10/24/01
Re: How long does it take your program to find Nf6! in this position? Steve Timson 02:05:29 10/24/01
Re: How long does it take your program to find Nf6! in this position? Richard A. Fowell 22:57:13 10/23/01
- Re: How long does it take your program to find Nf6! in this position? Roy Eassa 13:30:35 10/24/01
Re: How long does it take your program to find Nf6! in this position? Peter Kappler 22:03:41 10/23/01
Re: Thanks very much for all these responses!! Andrew Williams 14:21:52 10/23/01
Re: How long does it take your program to find Nf6! in this position? Ingo Bauer 13:56:37 10/23/01
Re: How long does it take your program to find Nf6! in this position? Robert Hyatt 13:28:26 10/23/01
Re: How long does it take your program to find Nf6! in this position? Kai Skibbe 13:25:36 10/23/01
Re: How long does it take your program to find Nf6! in this position? Dann Corbit 13:24:23 10/23/01
Re: How long does it take your program to find Nf6! naked eye sees it! stuart taylor 11:56:25 10/23/01
Re: How long does it take your program to find Nf6! in this position? John Merlino 11:51:52 10/23/01
- Re: How long does it take your program to find Nf6! in this position? Steven J. Brann 16:21:54 10/23/01
  - Re: How long does it take your program to find Nf6! in this position? John Merlino 19:22:38 10/23/01
    - Re: How long does it take your program to find Nf6! in this position? Uri Blass 01:44:18 10/24/01
      - Re: How long does it take your program to find Nf6! in this position? Vincent Diepeveen 07:04:01 10/24/01
        
        Re: How long does it take your program to find Nf6! in this position? Uri Blass 08:10:34 10/24/01
        
        Re: How long does it take your program to find Nf6! in this position? stuart taylor 03:28:38 10/25/01
        
        Re: How long does it take your program to find Nf6! in this position? John Merlino 08:08:45 10/24/01
        
        Re: How long does it take your program to find Nf6! in this position? Ernst Walet 14:51:53 10/27/01
        
        Re: How long does it take your program to find Nf6! in this position? Steven J. Brann 18:40:52 10/24/01
Re: How long does it take your program to find Nf6! in this position? Peter McKenzie 11:40:05 10/23/01
- Re: How long does it take your program to find Nf6! in this position? Terje Vagle 13:32:08 10/23/01
Re: How long does it take your program to find Nf6! in this position? Miguel A. Ballicora 11:02:07 10/23/01
- Re: smiley in program output Georg v. Zimmermann 11:30:20 10/23/01
  - Re: smiley in program output Tony Werten 00:10:38 10/25/01
  - Re: smiley in program output Dann Corbit 13:26:48 10/23/01
    - Re: smiley in program output Josh Strayhorn 14:17:54 10/23/01
      - Re: smiley in program output Dann Corbit 15:12:23 10/23/01
Re: How long does it take your program to find Nf6! in this position? K. Burcham 11:00:34 10/23/01
Re: How long does it take your program to find Nf6! in this position? Timothy J. Frohlick 10:52:45 10/23/01
- Re: How long does it take your program to find Nf6! in this position? stuart taylor 18:05:14 10/23/01
Re: How long does it take your program to find Nf6! in this position? Peter Berger 10:51:58 10/23/01
Re: How long does it take your program to find Nf6! in this position? Mogens Larsen 10:47:35 10/23/01
- Re: How long does it take your program to find Nf6! in this position? Dieter Buerssner 20:57:22 10/23/01
  - Re: How long does it take your program to find Nf6! in this position? Mogens Larsen 06:09:54 10/24/01
    - Re: How long does it take your program to find Nf6! in this position? Dave Gomboc 19:46:47 10/25/01
      - Re: How long does it take your program to find Nf6! in this position? Uri Blass 11:47:12 10/26/01

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