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Subject: Re: Null Move Threat Extension

Author: David Rasmussen

Date: 09:04:02 01/14/02

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On January 14, 2002 at 11:30:02, Severi Salminen wrote:

>>How important is the Null Move Threat Extension in practical play? I would
>>imagine that it solves some tactical problems faster, i.e. it scores better on
>>WAC, but does it win games (or draw games that would otherwise have been lost)?
>
>Sorry my ignorance, but what is NMTE? If nullmove search returns something way
>below alpha, you trigger an extension?
>
>Severi

Yep. Well, most people do it only for mate threats (say, value < -MATE + 100),
but I have experimented with doing it for (value < alpha - whatever). It didn't
seem to do anything but make the tree larger.

/David



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