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Subject: Re: Comment on Fritz - Junior

Author: Christoph Fieberg

Date: 06:18:14 07/03/01

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On July 03, 2001 at 03:02:46, Peter Berger wrote:

>On July 03, 2001 at 00:08:22, Christoph Fieberg wrote:
>
>>In the Fritz - Junior match I wondered how likely it is that a (at least) 5
>>point lead during the match will be (at least) egalized at the end (provided
>>both players are equal in strength).
>>
>>I simulated 200.000 matches with my program and such an event occurred only 961
>>times! The likelihood therefore is a mere 0,48%! (Chance 208 : 1)
>>
>>Was in spite of such a result the devolution of the Fritz - Junior match really
>>random? I could understand if it is questioned.
>>
>>Regards,
>>Christoph
>
>Could you calculate another one,please ? Given the fact that one program won
>_the first five_ games how likely is it that the loser will win the match ?
>
>This should definitely be even worse.
>
>pete

The likelihood for a comeback *after* a 0-5 defeat in the first five games is
rather high (conditioned likelihood!)

However the likelihhod that a whole match goes exactly like this:
5-0 lead *and* then at least equal at the end
is very low. It occurred only 55 times in 200.000 matches (0.0275%)

Christoph



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