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Subject: Re: Computer Chess Ratings

Author: Roberto Waldteufel

Date: 11:01:44 09/18/98

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On September 18, 1998 at 10:45:36, William H Rogers wrote:

>I have been looking for some rated programs or machines that can rate a player
>or even a beginner from 0 to 1200 playing strength.
>It would be nice to have someone furnish a list, not only for beginners, but for
>pledging chess programmers so they can estimate their own or their programs
>playing strength.
>I noticed, for the first time, that CCC has lowered the ratings to a class "E".
>I would like to see an "F, G, H", because they do exist, ask any beginner.
>I also noticed that there are at least 5 to 10 people in the club who are
>writting chess programs, come on guys, lets get together and have a list of some
>lower rated programs or machines that we can all test our programs against.
>Maybe I am assuming too much. Maybe most of your programs are starting out at
>1800 or better.
>Any replys or answers to this query would be greatly appreciated, not only to
>myself, but surely to some pledging programmers.
>Thanks
>BILL ROGERS
>WROGERS824@AOL.COM

I was surprised to find my own program rated much higher than this in its first
tournament (FSV Summer98). One of the problems when you write a new program is
to assess how good (or bad!) it actually plays. To this end I found the
invitation to play very interesting, and the results most encouraging. Rabbit
scored 50% for a rating of 2022 playing on a P120 machine.

The difficulty in rating a new program is the absence of sufficient tournaments.
Perhaps the servers are the best answer, but without a statistically significant
sample of results against rated opposition, it is very difficult to form any
sort of objective assessment unless the program is much weaker than the
programmer, which is not the case for me.

Best wishes,
Roberto



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