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Subject: Re: About False Fail Highs, professionals, and MTD searches

Author: Gian-Carlo Pascutto

Date: 02:28:17 04/13/02

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On April 13, 2002 at 04:19:27, Josť Carlos wrote:

>  I guess Fritz could be using a so small confirmation window that val never
>falls inside it, and thus you allways see a 1 move pv. I don't know.

My fundamental problem is that as long as you  get a move
and a bound value back from a failed search, i.e. no exact
score and full PV, there's no guarantee it's a good one, i.e.
not a false fail high.

Yet, Fritz and Shredder appear to have something that magically
allows them to determine they can trust the moves.


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