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Subject: Starting position to 30 ply

Author: Rudolf Huber

Date: 00:36:25 06/04/01


A couple of days ago I said (in a discussion about mtd(f)) that my chess
program can search the starting position to 30 ply over night when the eval
evaluates material only:


SOS no eval
  1.00   0:00    0.00   1.h3 (2)
  2.00   0:00    0.00   1.h3 (45)
  3.00   0:00    0.00   1.h3 h6 2.h4 (138)
  4.00   0:00    0.00   1.h3 h6 2.h4 (263)
  5.00   0:00    0.00   1.h3 h6 2.h4 h5 3.g3 (435)
  6.01   0:00    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 (1.860)
  7.01   0:00    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 (1.942)
  8.01   0:00    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 (2.024)
  9.01   0:00    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 (5.086)
 10.01   0:00    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 (16.891)
 11.01   0:00    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (41.424)
 12.01   0:00    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (94.654)
463.9
 13.01   0:00    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (132.293)
497.3
 14.01   0:00    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (245.124)
505.4
 15.01   0:00    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (359.203)
533.7
 16.01   0:01    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (714.937)
593.8
 17.01   0:02    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (1.212.436)
570.2
 18.01   0:02    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (1.729.490)
585.4
 19.01   0:05    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (3.025.316)
605.0
 20.01   0:08    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (4.700.415)
587.5
 21.01   0:15    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (9.323.868)
621.5
 22.01   0:29    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (16.881.247)
582.1
 23.01   0:48    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (28.659.953)
597.0
 24.01   1:36    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8 (56.472.536)
588.2
 25.01   3:37    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8
(127.308.632) 586.6
 26.01   7:41    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8
(275.114.597) 596.7
 27.01  17:31    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8
(622.179.104) 591.9
 28.01  45:16    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8
(1.602.666.536) 590.0
 29.01  80:46    0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8
(-1452508008) 586.5
 30.01  161:28   0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8
(1.397.948.590) 587.6
 31.01  513:07   0.00   1.h3 h6 2.h4 h5 3.g3 g6 4.Rh3 Rh6 5.Rh1 Rh8
(471.878.568) 573.3


Actually 30 ply was reached after 2:41 hours.

SW: no search extensions, normal nullmove pruning, normal quiescence
    search
HW: 2xCeleron 466 MHz, 500 MByte Hash


Can anyone do better?


Rudolf

Re: Starting position to 30 ply Andrew Williams 11:52:13 06/04/01
- Re: Starting position to 30 ply Uri Blass 11:58:18 06/04/01
  - Re: Starting position to 30 ply Andrew Williams 13:06:19 06/04/01
Re: Starting position to 30 ply Vincent Diepeveen 11:42:41 06/04/01
Re: Starting position to 30 ply Dan Andersson 03:44:26 06/04/01
- Re: Starting position to 30 ply Robert Hyatt 07:59:41 06/04/01
  - Re: Starting position to 30 ply Vincent Diepeveen 15:25:31 06/04/01
    - Re: Starting position to 30 ply Robert Hyatt 19:45:44 06/04/01
      - Re: Starting position to 30 ply Vincent Diepeveen 17:33:58 06/05/01
        
        Re: Starting position to 30 ply Robert Hyatt 20:14:57 06/05/01
      - Re: Starting position to 30 ply Daniel Clausen 02:40:22 06/05/01
        
        Re: Starting position to 30 ply Dan Newman 11:15:25 06/05/01
        
        Re: Starting position to 30 ply Robert Hyatt 08:44:11 06/05/01
        
        Re: Starting position to 30 ply Dan Andersson 08:38:46 06/05/01
        
        Re: Starting position to 30 ply Robert Hyatt 11:38:26 06/05/01
        
        Re: Starting position to 30 ply Uri Blass 04:30:01 06/05/01
        
        Re: Starting position to 30 ply Robert Hyatt 08:45:46 06/05/01
  - Re: Starting position to 30 ply Dan Andersson 08:06:40 06/04/01
- Re: Starting position to 30 ply Rudolf Huber 04:01:21 06/04/01
  - Re: Starting position to 30 ply Graham Laight 10:33:08 06/04/01
    - Re: Starting position to 30 ply Mike S. 12:12:41 06/04/01
      - Re: Starting position to 30 ply Gian-Carlo Pascutto 15:03:43 06/04/01
      - Re: Starting position to 30 ply Dan Andersson 12:17:02 06/04/01
        
        Re: Starting position to 30 ply Gian-Carlo Pascutto 14:54:28 06/04/01
  - Re: Starting position to 30 ply Dan Andersson 04:24:22 06/04/01
Re: Starting position to 30 ply Uri Blass 01:35:19 06/04/01
- Re: Starting position to 30 ply Vincent Diepeveen 15:49:19 06/04/01
- Re: Starting position to 30 ply Rudolf Huber 04:14:42 06/04/01
  - Re: Starting position to 30 ply Vincent Diepeveen 11:33:45 06/04/01
    - Re: Starting position to 30 ply Dann Corbit 21:43:51 06/04/01
      - Re: Starting position to 30 ply Vincent Diepeveen 17:52:53 06/05/01
      - Re: Starting position to 30 ply Robert Hyatt 08:47:39 06/05/01
      - Re: Starting position to 30 ply Uri Blass 00:00:41 06/05/01
        
        Re: Starting position to 30 ply Gian-Carlo Pascutto 00:30:16 06/05/01
- Re: Starting position to 30 ply Uri Blass 01:57:40 06/04/01
  - Re: Starting position to 30 ply Mike S. 02:17:26 06/04/01
Re: Starting position to 30 ply Slater Wold 01:30:03 06/04/01
- Re: Starting position to 30 ply José Carlos 02:29:47 06/04/01
  - Re: Starting position to 30 ply Christophe Theron 07:12:36 06/04/01
    - Re: Starting position to 30 ply José Carlos 10:09:42 06/04/01
      - Re: Starting position to 30 ply Uri Blass 10:41:45 06/04/01
        
        Re: Starting position to 30 ply Uri Blass 11:40:58 06/04/01
        
        Re: Starting position to 30 ply Rudolf Huber 10:53:41 06/04/01
    - Re: Starting position to 30 ply Uri Blass 07:35:19 06/04/01
  - Re: Starting position to 30 ply Uri Blass 03:01:39 06/04/01
    - Re: Starting position to 30 ply Slater Wold 07:29:12 06/04/01
Re: Starting position to 30 ply Gian-Carlo Pascutto 00:59:34 06/04/01
- Re: Starting position to 30 ply Vincent Diepeveen 11:21:47 06/04/01
  - Re: Starting position to 30 ply Graham Laight 13:50:38 06/04/01
  - Re: Starting position to 30 ply Gian-Carlo Pascutto 13:43:42 06/04/01
    - Re: Starting position to 30 ply Tony Werten 14:05:47 06/04/01

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