Computer Chess Club Archives

Search

Messages

Subject: How long does it take your engine to find the mate in 4?

Author: Jeff Hlywa

Date: 15:24:27 12/30/03

[D]r2qk2r/pp1nbRpp/4Q3/1B6/8/3p4/PPP3PP/5RK1 w kq - 0 17

I came across this position in a blitz game tonight and missed the mate (playing
Rxg7 instead).  My engine (Bogo) takes a full a minute to see the mate:

ply |   score |    time |     nodes |    qnodes | line
  1 |   -1.20 |    0.00 |        63 |       120 | cxd3
  2+|   -0.70 |    0.01 |       211 |      2770 | Re1
  2 |   -0.18 |    0.00 |       294 |      3582 | Re1 dxc2
  3+|    0.32 |    0.02 |      1382 |      6644 | Re1
  3 |    1.12 |    0.01 |      2015 |      8505 | Re1 d2 Qxe7+ Qxe7
  4 |    1.12 |    0.02 |      2574 |     11943 | Re1 d2 Qxe7+ Qxe7
  5+|    1.62 |    0.10 |     12127 |     29661 | Re1
  5 |    4.99 |    0.16 |     27376 |     57157 | Re1 Qb6+ Qxb6 axb6 Rexe7+
                                                  Kd8 Rxd7+ Kc8
  6 |    4.99 |    0.11 |     39122 |     80765 | Re1 Qb6+ Qxb6 axb6 Rexe7+
                                                  Kd8 Rxd7+ Kc8
  7 |    5.36 |    1.68 |    227701 |    386042 | Re1 Qb6+ Qxb6 axb6 Rexe7+
                                                  Kd8 Rxd7+ Kc8 Rc7+ Kd8 Rfd7+
                                                  Ke8
  8 |    5.36 |    1.21 |    373651 |    620391 | Re1 Qb6+ Qxb6 axb6 Rexe7+
                                                  Kd8 Rxd7+ Kc8 Rc7+ Kd8 Rfd7+
                                                  Ke8
  9+|    5.86 |   15.05 |   2168181 |   3291189 | Kh1
  9 |   Mat 4 |   41.57 |   7808070 |  11246013 | Kh1 dxc2 Rxg7 Rf8 Rxf8+
                                                  Kxf8 Qf7#

• Re: How long does it take your engine to find the mate in 4? Stan Arts 10:15:31 12/31/03
  • Re: How long does it take your engine to find the mate in 4? Brian Katz 05:50:11 01/01/04
• Pocket Chess Genius 1.5 - 0 seconds Mike Byrne 06:20:04 12/31/03
  • Re: Pocket Chess Genius 1.5 - 0 seconds Djordje Vidanovic 14:40:45 01/01/04
• Re: How long does it take your engine to find the mate in 4? Steven Edwards 02:33:58 12/31/03
• Re: How long does it take your engine to find the mate in 4? John Merlino 20:06:19 12/30/03
  • Re: How long does it take your engine to find the mate in 4? Michael Conway 22:30:09 12/30/03
• Zappa: 2 seconds [nt] Anthony Cozzie 18:19:35 12/30/03
  • Re: Zappa: 2 seconds [nt] Dieter Buerssner 10:55:25 12/31/03
• Re: How long does it take your engine to find the mate in 4? James T. Walker 17:26:50 12/30/03
  • Re: How long does it take your engine to find the mate in 4? James T. Walker 17:36:54 12/30/03
• Re: How long does it take your engine to find the mate in 4? Jim Gibson 16:19:11 12/30/03
• Re: How long does it take your engine to find the mate in 4? Mike Hood 15:41:28 12/30/03
  • Re: How long does it take your engine to find the mate in 4? K. Burcham 17:30:31 12/30/03
    • Re: How long does it take your engine to find the mate in 4? Mike Hood 01:16:19 12/31/03
• Re: How long does it take your engine to find the mate in 4? Andrew Williams 15:34:14 12/30/03
  • Re: How long does it take your engine to find the mate in 4? Vincent Diepeveen 19:50:24 12/30/03
    • Re: How long does it take your engine to find the mate in 4? Andrew Williams 04:21:20 12/31/03
    • Re: How long does it take your engine to find the mate in 4? George Tsavdaris 02:45:26 12/31/03
      • Re: How long does it take your engine to find the mate in 4? Uri Blass 05:00:51 12/31/03
  • Re: How long does it take your engine to find the mate in 4? Mike Byrne 15:46:44 12/30/03
  • 1.2 GHz Athlon (nt) Jeff Hlywa 15:45:02 12/30/03

This page took 0.01 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.