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Subject: Re: who will be the 1st program to hit the 2800-2900 rating barrier?anyone?

Author: Sune Fischer

Date: 02:41:50 01/17/03

Go up one level in this thread


On January 17, 2003 at 01:07:10, Dann Corbit wrote:

>On January 16, 2003 at 21:56:45, stuart taylor wrote:
>
>>On January 16, 2003 at 16:47:53, Dann Corbit wrote:
>>
>>>On January 16, 2003 at 16:16:02, david wight wrote:
>>>
>>>>please help with your thoughts.
>>>
>>>I, Dann Corbit, as a human player, am at 2900.  Of course, that puts Kasparov at
>>>2900+1900, = 4800 (roughly speaking).
>>>
>>>The numbers are arbitrary and have no meaning in absolute value.  The only
>>>purpose of ELO is to demonstrate strength levels via DIFFERENCES.
>>>
>>>HTH
>>
>>So you DO admit that there are playing strength levels in chess, just that it
>>can't be gaged exactly. One year 2800 might be a certain level of game, and the
>>next year it might take about 3500 to play the same game!
>
>The Elo formula is useful to predict outcomes over a broad range.  If a
>measurement is calibrated based upon data in a single pool, then the difference
>can be used to predict future outcomes (on a broad basis -- not individual
>measurements, of course).
>
>Not sure how that connects with your question/statement.
>
>My point was that Kasparov can be 2800, 3800, 50,000,000 or whatever we choose.
>As long as someone 300 ELO beneath his ability is given (Kasparov's ELO-300) the
>calculations will be the same.
>
>It is obvious that Elo figures drift over time.  An Elo of 2500 from 1875 has
>little connection with an Elo fo 2500 today.

While true in principle, there is 1 fixpoint commenly used: beginners rating at
1000 Elo. If you also put random play at 0 Elo you have a good (fixed) scale.

-S.



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