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Subject: Re: Mathematical question regarding chess

Author: Bo Persson

Date: 02:42:43 08/01/01

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On July 31, 2001 at 17:03:42, Janosch Zwerensky wrote:

>On July 31, 2001 at 16:43:05, John Dahlem wrote:
>
>>>Strangely, if you play enough games, you will eventually play a perfect game
>>>that would beat Kasparov.
>>
>>Is there a way to calculate the chances of such a thing?  For every move it must
>>play the one considered "right" over all other available moves. Chances of that
>>are what? 1 in a billion, 1 in a trillion?
>
>Assuming five "good" moves per position, thirty legal moves total per position,
>we get a probability of the random player playing a good game over twenty moves
>of (1/6)^20, which is something like a 1 in 3.7 quadrillion chance.
>To beat Kasparov, you will probably have to play a good game for substantially
>more than twenty moves, and probably have to chose among less than five "good"
>moves on average per position, so the chances of the random player beating
>Kasparov actually will be a lot smaller than that.
>
>Regards,
>Janosch.

Or, you can play Kasparov for substantially more than twenty *hours* at a time.
He will then fall asleep, and you might win some games on time forfeit...



Bo Persson
bop2@telia.com




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