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Subject: Re: Question to Jeroen: What went wrong with Tiger?

Author: Christophe Theron

Date: 10:44:53 08/24/01

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On August 24, 2001 at 13:33:33, Thorsten Czub wrote:

>On August 24, 2001 at 12:33:26, Christophe Theron wrote:
>
>>On August 24, 2001 at 11:41:47, Harald Faber wrote:
>>
>>>With these losses it is justified that Tiger didn't become single world
>>>champion. What is your explanation for this result? Did you play GT in
>>>aggressive mode? What made Tiger lose especially the last game vs. an amateur?
>>
>>
>>
>>I can answer your question if you answer mine:
>>
>>When you flip a coin, why is it head sometimes, and some other time it is tail?
>>
>>
>>    Christophe
>
>i don't think this is an explanation christophe.
>maybe we should look into the games instead.



It is an explanation.

If your program is able to win 60% of the games against a given opponent, you
are not going to consider to rewrite it every time you see one of the 40% of
losses.

If you only look at the losses you are going to believe that the program is shit
and start doing a lot of dramatic changes. Probably you are going to fix some of
the losses, but it is very likely that you are also change the outcome of a
significant part of the 60% of games that were won.

In the end you'll be very satisfied because the program does not lose the
previously lost games anymore, but oops, it does not win anymore the ones it had
won before!

So I'll do as I always do after a big tournament: I'll NOT study closely the
lost games (unless I can see a gross mistake by quickly browsing thru the games)
and keep on working as I do normally.



    Christophe



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