Computer Chess Club Archives




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

Author: Dieter Buerssner

Date: 09:51:16 04/13/02

Go up one level in this thread

On April 12, 2002 at 18:14:58, Gian-Carlo Pascutto wrote:

>It's my undestanding that for MTD to work well you have to
>do the adjustment too.
>So why aren't all MTD programs weak?

Why should they? This as a direct followup to my post seems to indicate, that
you assume, that I believe that (almost) allways trusting previous search
results (if it was a fail high, it must be true) is a bad idea. I don't think
so, it is a compromise in search, with pros and contras. And actually, it will
make the search more stable, not less stable (but may need now and then more
depth to see the same thing). Very typical of many things used to improve plain
alpha-beta search.


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