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Subject: Re: Comments on SSDF by Mr.Diepeveen

Author: Thoralf Karlsson

Date: 12:51:47 03/05/04

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On March 05, 2004 at 03:54:57, Afzal Siddique wrote:

>Hello All,
>
>http://www.aceshardware.com/forum?read=105063596
>
>Afzal


I have never asked Vincent Diepeveen for money in order to test his program.
Neither SSDF nor it's testers have ever received any PC-hardware or money for
buying it, from programmers or program-selling companies. A vast majority of the
PCs which we have used for testing have been bought by the individual testers,
and the rest SSDF has bought with it's membership fees.

What we have received is only the program itself on diskettes or CDROMs.

All games with PC-programs included in the SSDF rating list are played on two
separate PCs. We have not accepted dual machines and we have certainly not
played games on one single CPU PC only.

Match results presented by the program are not accepted. The end position in
each game is chequed on both programs.

I admit that we haven't published all 96 451 games which presently is the base
for the list. There are limits for how much time and effort we want to spend on
our hobby. If someone wants to believe that we cheat with the unpublished games,
feel free to do it. Even if we published all games included in the list, we
could probably still cheat, by playing even more games and then discarding
losses for our "favourites" and change dates and game numbers in the pgn-file.

We don't claim that the SSDF ratings correctly predict which rating the
individual program would get if they played hundred of games against humans. If
games were not played in long series between two opponents, but against a
different program in each game so that the book learning didn't work, the list
would probably look somewhat different. We test games in the way we have found
appropriate or practical and present the results. If someone prefers other ways
of testing, then he can consult other available rating lists or organize his own
in the way he wants.

Thoralf Karlsson
SSDF



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