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Subject: Re: M$ goes Chess?!?

Author: Bruce Moreland

Date: 00:29:25 01/07/99

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On January 06, 1999 at 16:40:02, Dann Corbit wrote:

>On January 06, 1999 at 03:56:04, Bruce Moreland wrote:
>
>>
>>On January 05, 1999 at 18:34:02, Dann Corbit wrote:
>>
>>>Deep blue is probably 2700-2800.  So about 200 points better than the best
>>>programs would be fair.  Of course, this is orders of magnitude stronger than
>>>the current programs.  Only under very rare circumstances will a 2700 program be
>>>beaten by a 2500 program.
>>
>>Approximately 1/4 of the time by definition.
>??
>ELO system predicts 1% upsets at 300 points difference.
>How did you arrive at .25?

The formula I've seen would predict 15% at 300 points.

It is 1 / (1 + 10 ^ (delta / 400))

bruce


bruce



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