Computer Chess Club Archives




Subject: Re: When to do a null move search - an experiment

Author: Tord Romstad

Date: 08:18:03 04/26/04

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Hi Tom!

On April 26, 2004 at 10:22:29, Tom Likens wrote:

>Hey Tord,
>Interesting as always.  A couple of questions on your testing methodology.
>1. What CPU was used (amount of memory, speed etc.)

Pentium IV 2.4 GHz, 24 MB of hash tables.

>2. Operating system

Linux (Debian, I think), not sure which version.

>3. Time control used

3 1

>4. Did the games start from known positions (Nunn, etc.) or were the played
>   straight from Gothmog's opening book (it actually makes a difference,
>   at least in my testing)?

The games where played from the wide opening book (tournament book disabled).
Perhaps the results would be more accurate and reliable if I played Nunn
or Noomen matches, but it's too late now.


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