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

Author: Gian-Carlo Pascutto

Date: 02:37:40 04/13/02

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On April 13, 2002 at 04:50:40, Ulrich Tuerke wrote:

>In case of a fail high, you repeat the search shifting the zero window
>to larger values until a fail low happens. That's by definition the true score
>and you may start the next iteration.
>So, in my understanding, fail low in a fail high research (and vice versa) is a
>very common thing in MTDF. It's just an indicator that the true score had been

...but it's not in PVS, since you can get a fail-high and fail-low
sequence and get a different score back with a full-window research.

So if what you say is true, it gets down to a more fundamental
question: why doesn't the effect happen with zero-windows, but it
does with small-but-not-zero ones?


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