Computer Chess Club Archives




Subject: Rybka uses PVS and not MTD(f). Its no Fruit-Clone

Author: Chrilly Donninger

Date: 01:58:52 12/12/05

I did not follow the CCC-discussion the last months/years. So please do not
"kill" me if I am telling old stuff. I got questions about Rybka from the
Hydra-sponsor so I read yesterday evening some of IM Vasik Rajlichs very
interesting postings in the archive.
Vasik mentions several time MTD(f) and his experience with it. But when playing
with Rybka, it looks like a normal PVS-search. I looked therefore also in the
Rybka-Code. What I have seen so far is typicall PVS-Code.

From this first look I can say that Rybka is not at all a Fruit clone.


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