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Subject: Re: TWO of Shredder's programs should be entered for upcoming events.

Author: Dann Corbit

Date: 07:30:10 06/10/05

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On June 10, 2005 at 10:11:03, stuart taylor wrote:

>The two Shredder programs which are 7.04 and 9.00, ought to both participate in
>any important computer events, I firmly believe. They are both very different,
>and have both not yet been fully assessed, and therefore, I believe the results
>of both ought to be of great interest. Each one of them are about 100%
>"interesting", but both, in same tournaments, are let's say, 300% interesting,
>in fact, many puzzling questions would cause discomfort if they don't both play
>in same events.
>Shredder 8, probably doesn't matter all that much, if you have the above two.
>Hopefully, others will agree, and this will be done!

Imagine a contest with ten engines of equal ability, labelled A through J.

The odds of winning are 10% for any one engine.
But now, suppose for engine C, that we allow a second engine called C-1 of about
the same ability.  Now the odds for C with either C or C-1 have become 2/11 =
18%

Suppose we allow 5 variants of the C engine C, C-1, C-2, C-3, C-4
Now the odds are 5/14 = 35.7%

Suppose we allow 5000 variants.

Now the odds are 5000/5009 = 99.8%

Suppose we owe N variants.

Now the odds are N/(N+9).

If N is 1 million, then the odds of winning the contest are now
99.9991%

Keep in mind that all engines are of the same ability, but now engine C is
virtually assured of winning with one of the variants.

Having more than one entry is clearly a very unfair advantage.



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