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Subject: Re: Shredder 8 vs. Fritz 8 (8.0.0.23) Blitz 3 0, 200 game test

Author: James T. Walker

Date: 19:08:18 01/30/04

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On January 30, 2004 at 12:01:23, George Sobala wrote:

>My conclusion is pretty much like yours - when two engines are even only
>approximately of similar strength, the randomness of the play caused by the very
>short time control is far greater than the true difference in strengths. You can
>measure out to 1000000 games, and all you do is measure the randomness of blitz
>play.
>
>Far better to play fewer but longer games.

If you flip a coin 200 times and get heads 101 times and tails 99 times would
you conclude that it was because you didn't flip the coin high enough into the
air?  In my opinion your conclusion about randomness caused by short time
controls is the same thing.  Two programs of approximately equal strength will
naturally have very close results.  I feel certain however if you run a million
games you will have a very good answer as to which program is stronger between
Fritz8/Shredder8.  Programs today on modern hardware are looking ahead about 10
ply minimum with extensions in some cases another 20/30 ply at blitz time
controls.  I would not call this random play.  Programs today play better chess
at 5/0 than 99% of human chess players playing at 40/2 hours.
By the way, in my blitz database, Shredder 8 is only 13 Elo ahead of Shredder
7.04 and 19 Elo ahead of Fritz 8.
Jim



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