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Subject: Re: 6 game 40/2 COMP WINS just as i predicted!

Author: Roy Eassa

Date: 06:49:52 01/12/01

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On January 11, 2001 at 17:35:08, Dann Corbit wrote:

>On January 11, 2001 at 17:31:46, Garry Evans wrote:
>[snip]
>>>>Don't we have enough 40n 2 games to give a USCF type rating?
>>>
>>>Not even provisional.  You can't combine every machine/program combination and
>>>call it a single player.
>>
>>  You are incorrect again, only 20 games need to be played to get a uscf
>>established rating, Rebel during the GM challenges has played over 24 at 40/2
>>including the lithuatian challenges
>
>He has changed hardware several times.  However, it is possible that enough
>games have been performed by Rebel on some particular platform to get a
>provisional rating.
>
>This (however) is a long, long way from proving how strong something is.  On the
>other, other hand -- I think that for the Rebel program we do have better
>evidence than for any other.


Doesn't this whole long-winded discussion come down simply to a definition of
what it means to "prove" something?

Using the strict mathematical/scientific definition of "proof", Mr. Corbit is
correct.  Nothing has been "proved".

In the 1990s, in the US, O.J. Simpson was "proved" not guilty of a double murder
in a criminal trial, and "proved" guilty of causing the same deaths in a civil
trial.  The burden of proof was different.  The first trial required proof
"beyond a reasonable doubt", whereas the second required only a "preponderance
of evidence".

Has it been proven mathematically that chess programs are GM strength?  No.
Beyond a reasonable doubt?  That's debatable.  By a preponderance of evidence?
I'd say yes.

(I haven't heard this kind of argument since my M.I.T. days!)



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