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Subject: Re: A 5 minute experiment. Which is stronger. Any takers???

Author: Luis E. Alvarado

Date: 17:23:27 01/13/00

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On January 13, 2000 at 04:30:50, Dann Corbit wrote:

>On January 13, 2000 at 02:37:53, Bert Seifriz wrote:
>>On January 13, 2000 at 01:29:56, Jouni Uski wrote:
>>
>>>As You see from Enriques tournament Fritz is superior to Rebel - so
>>>Anand is simply correct.
>>>
>>>Jouni
>>
>>20 games have no statistical relevance, even if you do not believe it.
>
>A better statement would be "very little statistical significance."  But you are
>correct in your basic assertion.  Imagine the following experiment:
>
>"Which is stronger, heads or tails?"
>We flip a coin.  The side that comes up most is stronger.  Go ahead and try it
>-- everybody.  Quite surprisingly, most people will *not* get 10/10, even though
>they really are almost exactly even.
>Here is my sequence:
>T - T - H - H - T - H - H - H - H - T - H - H - T - H - T - T - H - H - T - T
>9 tails and 11 heads (I used one of those fancy new quarters with a Georgia
>peach.)  Seems like heads is a little stronger.  How about some other results?
>I will not be at all surprised if someone gets 15 of one kind.  Yet we know they
>are about even.
>
>It is *exactly* the same with chess programs that are about even.  Like, for
>instance, Fritz and Rebel.
>
>Not an opinion.  Math, baby.  Pure math.  Now, one may be stronger than the
>other.  But to prove conclusively would take a staggering number of trials.


You have a point but, that is why we are forze to rely in the SSDF ratings. If
FRITZ is rated Higher than Rebel, Then it is stronger.







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