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Subject: DB doesn't do NULL move????

Author: jonathan Baxter

Date: 17:32:58 06/28/98

So all this recent discussion about DB says it doesn't null move, and I saw
another post which said in some positions it was getting no more than 11-ply.
Since PC based programs now reach that easily (without heavy forward pruning
apart from Null move), but PC programs are not close to challenging Kasparov,
can't we only conclude one of two things:

1) DB has a much better evaluation function than the PC programs.

and/or

2) Null moving makes *lots* of mistakes.


"1" seems unlikely in light of a quote I heard from one member of the DB team to
the effect that DB's eval was only "nearly as good" as the best commercial
programs.

So that leaves 2. This is news to me. Anyone have any comments?

Jonathan Baxter

Re: DB doesn't do NULL move???? Bruce Moreland 20:48:43 06/28/98
- Re: DB doesn't do NULL move???? Robert Hyatt 21:30:49 06/28/98
  - Re: DB doesn't do NULL move???? Bruce Moreland 09:39:13 06/29/98
    - Re: DB doesn't do NULL move???? Robert Hyatt 10:28:31 06/29/98
      - Re: DB doesn't do NULL move???? Bruce Moreland 15:33:36 06/29/98
        
        Re: DB doesn't do NULL move???? Robert Hyatt 16:53:57 06/29/98
        
        Re: DB doesn't do NULL move???? Don Dailey 19:21:49 06/29/98
        
        Re: DB doesn't do NULL move???? Robert Hyatt 20:09:54 06/29/98
        
        Re: DB doesn't do NULL move???? Komputer Korner 09:17:15 06/30/98
Re: DB doesn't do NULL move???? Robert Hyatt 18:24:10 06/28/98
- Re: DB doesn't do NULL move???? Bruce Moreland 20:52:51 06/28/98
  - Re: DB doesn't do NULL move???? Don Dailey 19:33:45 06/29/98
- Re: DB doesn't do NULL move???? jonathan Baxter 19:19:39 06/28/98
  - Re: DB doesn't do NULL move???? Robert Hyatt 21:35:09 06/28/98
    - Re: DB doesn't do NULL move???? Bruce Moreland 09:42:20 06/29/98
      - Re: DB doesn't do NULL move???? Robert Hyatt 10:50:14 06/29/98
        
        Re: DB doesn't do NULL move???? Bruce Moreland 12:41:28 06/29/98
        
        Re: DB doesn't do NULL move???? Robert Hyatt 12:45:59 06/29/98

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