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Subject: Re: Measuring Elo Drift

Author: Serge Desmarais

Date: 00:00:28 10/02/98

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On September 30, 1998 at 16:14:56, Komputer Korner wrote:

>On September 26, 1998 at 14:31:23, John Coffey wrote:
>
>>I had made a similar suggestion to Dahoora on ICC a few years ago.  The idea
>>is that ratings are pretty volatile.  So my suggestion is that he take a
>>computer program that will not change and use it to measure rating drift
>>on ICC, and then if the ratings do drift he could adjust his rating system
>>accordingly to bring them back in line.
>>
>>He turned the idea down.
>>
>>I suspect that in a few years that online chess will be so easily available
>>to everyone that online ratings will be considered more important than OTB
>>ratings.
>>
>>John Coffey
>>
>>Make chess, not war.
>
>Also can we be sure that net lag is completely negated by such utilities as
>TimeStamp and Time seal? Also computer cheating will always be with us.
>--
>Komputer Korner

Using Win 3.11 and a DOS chess program to play on ICC, I discovered that when
you switch to a full screen DOS chess program and go back to Blitzin to enter
the move, most of the time taken by the chess program to think about its move
was put on the account of lag. That way, as long as there was even a small
increment, the total time available was ALWAYS increasing whatever time your
program is using! That is the reason why I stopped using any DOS program,
despite my efforts to fix it in the Control Panel (adjusting time given to
background windows and all). I even caught a cheater that way, just by noticing
his always increasing time when the pinging was almost instant! I suppose this
problem is inexistant in Win 95?

Serge Desmarais



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