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Subject: Re: Human rating differential compared to Computer vs. computer

Author: KarinsDad

Date: 12:56:27 01/29/99

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On January 29, 1999 at 15:18:15, KarinsDad wrote:

>On January 29, 1999 at 14:53:15, Matt Frank wrote:
>
>>Terry:
>>
>>A 500 point elo difference translates into a score of approx 19 to 1 (no matter
>>whether the 1 point is a win or two draws, for example). I would bet that the
>>computer vs computer and human vs human matches based on this level of
>>difference would produce similar results given a large enough sample (i.e.,
>>thousands of games), regardless of the anecdotal comments made to this post by
>>others.
>>
>>Matt Frank
>
>What you say sounds scientific, but I've played a lot more than 20 games against
>people 500 points above me and have never come even close to winning (or drawing
>for that matter) in standard time controls. Practically speaking, I think that
>the ELO percentage estimates are based on mathematics and not on practical
>results. It would be interesting to be able to search in the USCF database to
>find out for sure.
>
>I think what you say may be true for computers, but is probably not true for
>humans.
>
>KarinsDad

I went to my local state chess web page and checked out the results for the last
few open tournaments. Here are the results:

Diff W  L D
300  2 12
400  2 11 1
500    9

Out of the 2 wins and a draw at the 400 point differential, all 3 of them were
from up and coming young turks whose ratings are lower than their playing
ability. Of course, this is too small of a sample set to be taken seriously, but
it does support my theory.

KarinsDad



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