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Subject: Explosion in WAC 102

Author: David Rasmussen

Date: 08:44:39 01/11/02

[D]2Q2n2/2R4p/1p1qpp1k/8/3P3P/3B2P1/5PK1/r7 w - - 0 1

In the above position, my search tree explodes because of extensions. It takes >
3 minutes and 42 million nodes to finish an 8 ply search. How does your program
do?

Any good ideas on how to limit extensions in such a position.

P.S. Solving the position is no problem. It is a simple mate in 5 plies, and is
found very early on at depth 1 or 2 or so. Still, there must be something
unsound about my extensions, or at least room for improvement, when this
position makes the tree explode.

/David

Re: Explosion in WAC 102 Andrew Williams 03:29:31 01/12/02
Re: Explosion in WAC 102 Dave Gomboc 20:08:16 01/11/02
Re: Explosion in WAC 102 Severi Salminen 14:59:40 01/11/02
- Re: Explosion in WAC 102 David Rasmussen 15:15:00 01/11/02
No explosions Matthias Gemuh 14:40:09 01/11/02
- Re: No explosions Uri Blass 14:52:50 01/11/02
  - Re: No explosions Matthias Gemuh 15:06:24 01/11/02
    - Re: No explosions Severi Salminen 06:27:05 01/12/02
    - Re: No explosions Uri Blass 22:45:56 01/11/02
      - Re: No explosions Matthias Gemuh 01:41:38 01/12/02
    - Re: No explosions David Rasmussen 15:57:39 01/11/02
      - Re: No explosions Jason Williamson 01:55:45 01/13/02
      - Re: No explosions Tony Werten 09:31:04 01/12/02
        
        Re: No explosions David Rasmussen 07:27:46 01/13/02
        
        Re: No explosions Tony Werten 11:10:06 01/13/02
        
        Re: No explosions David Rasmussen 12:03:59 01/13/02
        
        Re: No explosions Tony Werten 12:37:34 01/13/02
      - Re: No explosions Sune Fischer 16:54:14 01/11/02
        
        Re: No explosions David Rasmussen 17:08:27 01/11/02
        
        Re: No explosions Sune Fischer 02:27:28 01/12/02
        
        Re: No explosions David Rasmussen 03:58:28 01/12/02
        
        Re: No explosions Uri Blass 02:14:44 01/13/02
        
        Re: No explosions Sune Fischer 03:48:22 01/13/02
        
        Re: No explosions Sune Fischer 03:59:08 01/13/02
        
        Re: No explosions Uri Blass 03:55:14 01/13/02
        
        Re: No explosions Sune Fischer 04:11:31 01/13/02
        
        Re: No explosions Uri Blass 04:24:32 01/13/02
        
        Re: No explosions David Rasmussen 07:33:32 01/13/02
Re: Explosion in WAC 102 Uri Blass 10:28:12 01/11/02
Re: Explosion in WAC 102 David Rasmussen 10:09:24 01/11/02
- Re: Explosion in WAC 102 Martin Giepmans 12:12:10 01/11/02
  - Re: Explosion in WAC 102 David Rasmussen 12:18:47 01/11/02
    - Re: Explosion in WAC 102 Tony Werten 09:21:39 01/12/02
    - Re: Explosion in WAC 102 Martin Giepmans 12:59:12 01/11/02
      - Re: Explosion in WAC 102 Matthias Gemuh 13:59:04 01/11/02
        
        Re: Explosion in WAC 102 David Rasmussen 14:03:49 01/11/02
        
        Re: Explosion in WAC 102 Matthias Gemuh 14:10:12 01/11/02
        
        Re: Explosion in WAC 102 David Rasmussen 18:18:33 01/11/02
        
        Re: Explosion in WAC 102 Andrew Dados 19:21:40 01/11/02
        
        Re: Explosion in WAC 102 Miguel A. Ballicora 14:19:38 01/11/02
- Re: Explosion in WAC 102 Miguel A. Ballicora 10:29:48 01/11/02
Re: Explosion in WAC 102 Matthias Gemuh 09:47:32 01/11/02
- Re: Explosion in WAC 102 David Rasmussen 10:15:26 01/11/02
  - Re: Explosion in WAC 102 Uri Blass 10:41:00 01/11/02
    - Re: Explosion in WAC 102 Uri Blass 10:42:42 01/11/02
Re: Explosion in WAC 102 Matthias Gemuh 09:40:03 01/11/02
- Re: Explosion in WAC 102 David Rasmussen 09:47:29 01/11/02
  - Re: Explosion in WAC 102 Matthias Gemuh 10:20:14 01/11/02
  - Re: Explosion in WAC 102 Miguel A. Ballicora 10:00:46 01/11/02
    - Re: Explosion in WAC 102 Dann Corbit 11:27:47 01/11/02
      - Re: Explosion in WAC 102 Tony Werten 09:42:19 01/12/02
        
        Re: Explosion in WAC 102 Dann Corbit 17:14:26 01/14/02
        
        Re: Explosion in WAC 102 Tony Werten 10:10:32 01/15/02
      - Re: Explosion in WAC 102 David Rasmussen 12:35:17 01/11/02
Re: Explosion in WAC 102 José Antônio Fabiano Mendes 09:19:44 01/11/02
Re: Explosion in WAC 102 Martin Giepmans 09:10:32 01/11/02
- Re: Explosion in WAC 102 David Rasmussen 09:52:29 01/11/02
  - Re: Explosion in WAC 102 Martin Giepmans 11:45:15 01/11/02
    - Re: Explosion in WAC 102 David Rasmussen 12:46:19 01/11/02
- Re: Explosion in WAC 102 José Carlos 09:28:56 01/11/02
  - Re: Explosion in WAC 102 Martin Giepmans 11:12:58 01/11/02
    - Re: Explosion in WAC 102 Sune Fischer 03:18:47 01/12/02

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