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

Author: Dave Gomboc

Date: 23:12:44 10/14/99

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On October 15, 1999 at 01:24:48, Ratko V Tomic wrote:

>I was talking in this thread about current state of the art alpha-beta
>searchers. The deeper they look the greater is the percentage of junk positions
>they weed through, and that is an exponential convergence toward 0 percent of
>useful positions examined. Yes of course, they see more useful positions too,
>just because they see so many more positions in absolute numbers, but the net
>efficiency in useful processing still drops exponentially toward zero with the
>depth. And this type of phenomenon, in any kind of evolving or competing system,
>can only mean one thing ahead: a dead end, an extinction.

I'd appreciate seeing an instrumented program that demonstrates this behavior.
I think your assertion is false for today's state-of-art chess programs.
Caveat: I don't consider a position to be "junk" if looking at it helps to
establish that a predecessor position is not "junk".

Dave

• Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 05:41:44 10/15/99
  • Re: DB will never play with REBEL, they simple are afraid no to do well Jeremiah Penery 06:47:42 10/15/99
    • Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 13:14:06 10/15/99
      • Re: DB will never play with REBEL, they simple are afraid no to do well blass uri 15:01:26 10/15/99
    • Re: DB will never play with REBEL, they simple are afraid no to do well Robert Hyatt 08:41:06 10/15/99
      • 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
  • Re: DB will never play with REBEL, they simple are afraid no to do well Ratko V Tomic 06:00:31 10/15/99

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