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Subject: Re: Whither Null Move?

Author: Rémi Coulom

Date: 00:44:20 08/19/01

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On August 18, 2001 at 21:11:00, Stuart Cracraft wrote:

>So I've been dinkering with null move. Or it's been dinkering
>with me.
>
>Without using null move, an 8-ply search in the opening
>position looked like:
>
>ply    time   nodes  score  pv
>  1    0.00      21     28  d2d4
>  2    0.00      97    -20  d2d4 d7d5
>  3    0.06     842     16  d2d4 d7d5 g1f3
>  4    0.06    3423    -15  e2e4 g8f6 e4e5 f6e4

From this +/- oscillation of the score, I guess that you do not give a big
enough bonus for being on the move. This what kills your null move. Just add a
bonus for the player on the move so that the evaluation oscillates as little as
possible. Null move should work much better then.

Rémi

• Re: Whither Null Move? Antonio Dieguez 12:28:00 08/19/01
  • Re: Whither Null Move? Georg v. Zimmermann 22:03:30 08/19/01
    • Re: Whither Null Move? Antonio Dieguez 09:02:11 08/20/01
      • Re: Whither Null Move? Georg v. Zimmermann 08:48:23 08/21/01
        • Re: Whither Null Move? Antonio Dieguez 07:44:42 08/22/01
          • Re: Whither Null Move? Miguel A. Ballicora 09:03:10 08/22/01
            • Re: Whither Null Move? Antonio Dieguez 11:32:48 08/22/01
    • Re: Whither Null Move? Rémi Coulom 07:21:12 08/20/01
      • Re: Whither Null Move? Antonio Dieguez 09:54:32 08/20/01
        • Re: Whither Null Move? Antonio Dieguez 10:07:38 08/20/01

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