Computer Chess Club Archives

Search

Messages

Subject: Re: DB will never play with REBEL, they simple are afraid no to do well

Author: Robert Hyatt

Date: 08:41:06 10/15/99

Go up one level in this thread

On October 15, 1999 at 09:47:42, Jeremiah Penery wrote:

>On October 15, 1999 at 08:41:44, Ratko V Tomic wrote:
>
>>Roughly
>>estimating, there are perhaps 3-4 non-junk moves in a typical middlegame
>>position and the effective branching factor may be 6-8 in such position.
>
>I've never seen such a high branching factor in any sort of typical position.
>3-4 (even sometimes 2) is a much more typical branching factor for today's
>programs.
>
>Jeremiah


You really mean "effective branching factor" which is reduced significantly
by null-move, forward pruning, selective searching, etc.  "branching factor"
is really a constant and is roughly 38 for the game of chess, averaged over
the entire game.  IE alpha/beta alone reduces the effective branching factor
from 38 to roughly sqrt(38) == 6.  Null move can reduce this by 1/2.

• Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 16:11:48 10/15/99
  • Re: DB will never play with REBEL, they simple are afraid no to do well Robert Hyatt 20:53:31 10/15/99
    • Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 00:54:35 10/16/99
      • Re: DB will never play with REBEL, they simple are afraid no to do well Robert Hyatt 07:52:04 10/16/99
        • Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 10:41:17 10/16/99
          • Re: DB will never play with REBEL, they simple are afraid no to do well Robert Hyatt 20:09:23 10/16/99
      • Re: DB will never play with REBEL, they simple are afraid no to do well Jeremiah Penery 05:01:59 10/16/99
        • Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 07:56:08 10/16/99
          • Re: DB will never play with REBEL, they simple are afraid no to do well Jeremiah Penery 13:40:17 10/16/99
            • Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 17:24:16 10/16/99
              • Re: DB will never play with REBEL, they simple are afraid no to do well Jeremiah Penery 17:54:24 10/16/99
                • Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 23:50:14 10/16/99
                  • Re: DB will never play with REBEL, they simple are afraid no to do well Jeremiah Penery 08:25:49 10/17/99
                    • Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 09:48:54 10/17/99
                      • Re: DB will never play with REBEL, they simple are afraid no to do well Jeremiah Penery 11:00:43 10/17/99
                        • Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 12:57:06 10/17/99
                          • Re: DB will never play with REBEL, they simple are afraid no to do well Jeremiah Penery 13:12:03 10/17/99
                            • Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 13:45:43 10/17/99
                              • Re: DB will never play with REBEL, they simple are afraid no to do well Robert Hyatt 21:13:03 10/17/99
                                • Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 09:23:00 10/18/99
                                  • Re: DB will never play with REBEL, they simple are afraid no to do well Robert Hyatt 12:15:24 10/18/99
      • Re: DB will never play with REBEL, they simple are afraid no to do well Dan Newman 01:21:02 10/16/99
        • Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 01:40:54 10/16/99
          • Re: DB will never play with REBEL, they simple are afraid no to do well Dan Newman 11:40:53 10/16/99
            • Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 12:36:06 10/16/99
              • Re: DB will never play with REBEL, they simple are afraid no to do well Robert Hyatt 07:34:33 10/17/99
                • Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 10:08:05 10/17/99
                  • Re: DB will never play with REBEL, they simple are afraid no to do well Robert Hyatt 18:00:19 10/17/99
• Re: DB will never play with REBEL, they simple are afraid no to do well Jeremiah Penery 15:06:07 10/15/99

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.