Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Ruffian 2 and SSDF

Author: Uri Blass

Date: 17:27:09 03/14/04

Go up one level in this thread


On March 14, 2004 at 19:32:23, Mike S. wrote:

>I suggest that when new engines join the SSDF ratings, at least 50% of the
>opponents should be from the top-10. When the Elo system underestimates the
>chances of the weaker player to draw - as statistics experts have explained -
>then choosing weak(er) opponents only for the important entry rating of an
>engine known to be strong, must result in an underestimated IOW too low rating.
>
>(In the current Ruffian 2 results, the best opponent is Shredder 7/K6-450 which
>is ranking #16.)
>
>Of course there's a reversed logic variant of that: When an engine which is in
>fact mediocre only, would be tested against top opposition for the first rating.
>Then, that engine would benefit from the effect and would be overrated. I'm not
>aware of an example for this.
>
>Regards,
>M.Scheidl

Ruffian2 did not play against weaker opponent but probably against stronger
opponents


37 Ruffian 2.0.0  256MB  Athlon 1200 MHz, 2611
Shredd7 K6450     11-14    Junior7 A1200   14.5-25.5  DpFritz7 K6-2     19-25
Fritz532 P200   27.5-14.5

Ruffian2 scored less than 50% and opponent who score more than 50% are usually
called stronger opponents.

Ruffian2 lost 79-72 against the opponents.

Uri



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.