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Subject: Re: Crafty PVS question

Author: Gian-Carlo Pascutto

Date: 14:39:27 08/30/02

Go up one level in this thread

On August 30, 2002 at 17:37:25, Patrik wrote:

>Difference is that Crafty used alpha instead of value when it re-searches.
>Is there any reason to use alpha instead of value?
>Using value which is greater than alpha seems to cause more cutoffs than using
>alpha.

If you get a fail high on the first search and a fail low on the second (*),
you will lose your PV's. This does not happen if you do the research with
alpha.

(*) If you think this can't happen, you haven't been doing chessprogramming
long enough.

--
GCP

• Re: Crafty PVS question Omid David 15:42:40 08/30/02
  • Re: Crafty PVS question Bo Persson 03:24:18 08/31/02
    • Re: Crafty PVS question Omid David 03:29:41 08/31/02
  • Re: Crafty PVS question Gian-Carlo Pascutto 17:02:59 08/30/02
    • Re: Crafty PVS question Omid David 03:24:24 08/31/02

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