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Subject: Re: Blitz: Rybka vs Rybka

Author: James T. Walker

Date: 21:26:52 01/01/06

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Hello Tom,
He doesn't seem too concerned about blitz performance but he has produced a
great engine anyway.
I played the 3 Rybkas vs 3 different opponents.  The opponents all used their
own books.  The 3 Rybkas used Fritz8.ctg.  Each Rybka played 120 games vs each
opponent (360 games total).  Ponder was on and each engine had it's own CPU on a
dual core AMD.  Here is what happened.

Vs Fritz 8
Rybka Beta     66.5-53.5
Rybka Preview  73.0-47.0 (exceptional result)
Rybka Beta 7   68.0-52.0

Vs Fruit 2.2.1
Rybka Beta     71.5-48.5
Rybka Preview  66.5-54.5
Rybka Beta 7   63.0-57.0

Vs TogaII 1.1
Rybka Beta     78.5-41.5
Rybka Preview  68.5-51.5
Rybka Beta 7   68.5-51.5

Totals
Rybka Beta      216.5/360
Rybka Preview   207.0/360
Rybka Beta 7    199.5/360

You can see by the totals its a steady decline but probably within the error
bars.  Still a bit worrysome for a blitz only fan. :-)
(sorry for the extra messages below)




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