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Subject: Re: negative extensions

Author: Robert Hyatt

Date: 08:00:46 01/25/01

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On January 25, 2001 at 10:30:37, Gian-Carlo Pascutto wrote:

>On January 25, 2001 at 09:34:05, Robert Hyatt wrote:
>
>>This is what null-move search does, in essence...
>
>Mnmnm...yes...but...
>
>Nullmove does more than just reducing depth, it also
>does the nullmove! This makes it a lot unsafer than
>just reducing the depth.
>
>If you had said Fail High Reductions I would have
>agreed, but I don't think you can really call
>nullmove a negative extension.
>
>--
>GCP


Yes, but it is the same sort of idea:  I am winning even if my opponent plays
two consecutive moves... therefore I can search shallower since his position
is so hopeless (or mine is so good) and save time.  Anytime you reduce the
depth, I would call that a "negative" extension...

• Re: negative extensions Gian-Carlo Pascutto 09:21:34 01/25/01
  • Re: negative extensions Robert Hyatt 16:06:58 01/25/01
    • Re: negative extensions Christophe Theron 09:11:51 01/26/01
      • Re: negative extensions Vincent Diepeveen 19:49:31 01/26/01
        • Re: negative extensions Christophe Theron 07:50:39 01/27/01

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