Author: John Merlino
Date: 14:54:12 08/07/00
Go up one level in this thread
On August 05, 2000 at 09:15:14, Matthew Barnett wrote:
>Some Questions on Chessmaster 7000 Ratings
>
>I wonder if anyone could help clear up a few things for me. I have Chessmaster
>7000 and I am running it on a Pentium 300MHz MMX, 64 Mb RAM. Chessmaster, the
>beareded one, is ranked on my machine as 2571.
>
>1. Is this FIDE Elo or USCF rating?
USCF
>
>2. How 'true' is this rating? Does Chessmaster 7000 calibrate its ratings to
>allow for the specification of each individual computer, or are the same
>rankings, given to the 'computer players', which are on my machine, to be found
>on all computers, irrespective of processing power, memory etc.
The ratings in Chessmaster 7000 were calculated via computer vs. computer
games, and the only "data point" was SSDF's rating of the Chessmaster 6000
engine at its strongest setting. The personalities do get a bonus to their
rating based on processor speed. Unfortunately, it has been shown that these
ratings are only very loosely based on reality; the farther away you get from
the data point (the Chessmaster personality), the potentially farther away you
get from reality. With the personalities rated < 2000, the potential for error
grows and some personalities are rated over 300 points too high. Others in that
range, though, are reasonably accurate (within 50 points).
>
>3. If this is not a 'true' rating, then what would be for Chessmaster 7000 on
>my computer's spec? Is there a way of working it out, however roughly?
See above, but I have read that it is GENERALLY considered that a doubling
of processor speed is worth about 70 ELO points.
>
>4. Would the case be the same for Fritz6a, which I also have? (Although I know
>it uses the FIDE ranking).
I know nothing about Fritz6a. Sorry!
>
>Many thanks
jm
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