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Subject: Re: The difference between short and long time controls

Author: Roy Eassa

Date: 09:37:51 10/14/03

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On October 14, 2003 at 05:05:20, Daniel Clausen wrote:

>On October 13, 2003 at 17:39:03, Russell Reagan wrote:
>
>[snip]
>
>>G/5    34 points
>>G/10   24 points
>>G/30   15 points
>>G/120  23 points
>>
>>Only the last result increases. If you ran this test numerous times with many
>>different engines, I bet you'd see the trend of closer results with longer time
>>controls.
>
>Based on the four numbers stated above I'd _never_ conclude that the number is
>decreasing when time increases.
>
>Sargon


The margin decreased in two of the three time increases.  Once by 10 points and
once by 9 points.  The one time it increased was by 8 points.

Way too little data to pronounce a real trend, I agree, but it does seem to have
some trend-like characteristics IMHO.  :-)

Combine it with the many other results that have been posted and I think a trend
is indeed showing itself.  Longer time controls = narrower margins of victory.
Not always, but usually.

Working backwards from that apparent trend, shorter time controls = wider margin
of victory AND a lot more games can be played.  So shorter time controls are
generally a better way to compare 2 engines, for those two reasons.
(Admittedly, the "value" of each game to a human who's seeking near-perfect
chess is much lower, but that's an entirely separate issue.)



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