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

Author: Norm Pollock

Date: 07:40:03 06/10/05

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On June 10, 2005 at 10:30:10, Dann Corbit wrote:

>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.

So what are the odds on CM IX and / or CM X is this:

http://www.talkchess.com/forums/1/message.html?430488



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