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Subject: Re: EVIDENCE That Junior REALLY DID Perform Very Badly In Bilbao

Author: Dennis Breuker

Date: 02:31:31 10/14/04

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On October 13, 2004 at 15:45:32, Robert Hyatt wrote:

>On October 13, 2004 at 07:38:13, Graham Laight wrote:
>
>>Junior's performance in Bilbao was much worse than even I had thought - and now
>>I have the weapon to prove it - the simulator in
>>http://www.talkchess.com/forums/1/message.html?391362
>>
>>Starting with the assumption that all 3 machines had equal win/draw/loss
>>probablities, I tried different combinations of probabilities to produce the
>>kind of results that Hydra and Fritz got (3.5/4). I found that setting the win
>>probablity to 70%, the draw probability to 20%, and the lose probability to 10%
>>gave a 27.4% probability of producing 3.5 points - which is reasonable.
>>
>>However - the probability for Junior's score (1.5/4) comes out at only 2.02%!!!
>>
>>To those who thought that my remarks about Junior's poor performance were
>>statistically illiterate, I would ask you to run the simulator, and try to come
>>up with win/draw/lose probabilities that give a good chance of the results we
>>saw in Bilbao happening if each computer were equally as good.
>>
>>I await your probability numbers...
>>
>>-g
>
>
>What happens if you run your simulation for only +four+ games for each player???
>
>:)

I did just that:

DJ won 1.5 points in 75% of the tournaments
DJ won 2 points in 25% of the tournaments

So the result was to be expected! :^)



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