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Subject: Re: Another statistical question on BGN match

Author: Martin Schubert

Date: 07:49:52 05/08/01

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On May 08, 2001 at 10:30:10, Larry Proffer wrote:

>"Braingames explain their reasoning. "We made a simple decision. We wanted
>programs which could play on multi-processor platforms as they are obviously
>stronger candidates for the Kramnik match. There are really only three
>candidates: Fritz, Junior and Shredder. We made great efforts to persuade
>Shredder to play but they declined." They added that they unfortunately didn't
>have time for a tournament with 10 programs which would have taken too long to
>run. One of the main complainants was the company REBEL. Their TIGER program is
>a single processor prgram yet still finished second in the Cadaques event run by
>Prof. Irazoqui earlier in the year. They actually have a multi-processor version
>called DEEP TIGER but that wasn't announced until after the invitations were
>made."
>
>Can any statistician answer if it isn't actually better (in terms of finding the
>'best' comp-comp program), to increase the number of participants while playing
>the same number of games?
>
>It seems to my amateur mind that:
>
>a) a participant increase actually decreases the effect of "A beats B, and B
>beats C while C beats A" - in other words it reduces the effect of one program
>being tuned (on purpose, or just happening that way) on another.
>
>b) it decreases the effect that the 'objectively best' program, bu not actually
>playing, can't possibly 'win' the tournament.

When you want to examine a match statistically you have to assume that these
aspects do not exist. So they don't matter. Otherwise you've got big problems to
get any statistical results.

Martin



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