check this out

The Digital Knight

Only Chess

23 Jan 06

The Digital Knight

Joined: 13 Nov 05
Moves: 4642

23 Jan 06

http://img6.imageshack.us/my.php?image=chess4lq.swf

calculate ratings according to the rules in the FAQ.

99% accurate, the margin of error is one point more or less, but i need to test it more.

Sicilian Smaug

Joined: 15 Aug 05
Moves: 96595

23 Jan 06

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Ragnorak

For RHP addons...

tinyurl.com/yssp6g

Joined: 16 Mar 04
Moves: 15013

23 Jan 06

Originally posted by The Digital Knight
http://img6.imageshack.us/my.php?image=chess4lq.swf

calculate ratings according to the rules in the FAQ.

99% accurate, the margin of error is one point more or less, but i need to test it more.

Nice job, but I don't understand where the inaccuracy comes from.

Btw: A nice imbedded implementation of the ratings calculator has been done for Firefox by ouroboros. You just need Firefox and the Greasemonkey script.
http://members.shaw.ca/ouroboros/RHP/

D

FabianFnas

Joined: 11 Nov 05
Moves: 43938

25 Jan 06

Is it possible that one can lose rating points in a win game?
The last game I won I lost a point and the other gained points.

Freddie2008

9 Edits

London

Joined: 28 Sep 04
Moves: 110329

25 Jan 06

Originally posted by FabianFnas
Is it possible that one can lose rating points in a win game?
The last game I won I lost a point and the other gained points.

Because you have not completed 20 games your rating is still provisional which means your rating will be a bit erratic.

FabianFnas

Joined: 11 Nov 05
Moves: 43938

25 Jan 06

Originally posted by Freddie2006
Because you have not completed 20 games your rating is still provisional which means your rating will be a bit erratic.

Ah, I see.

Then, after 20 games the rating-setting formula is applied?
What formula is applied before the 20 first games? How is the rating calculated?

ViA

Norway

Joined: 02 Jun 05
Moves: 128930

25 Jan 06

Originally posted by FabianFnas
What formula is applied before the 20 first games? How is the rating calculated?

Fairly simple average, see http://www.redhotpawn.com/help/index.php?help=faq for details.