ratings

Chess ratings serves two purposes: (a) they tell you your relative ability, and (b) are useful means for identifying and playing opponents of roughly your same ability.

This server utilizes the Glicko rating system developed by Mark E. Glickman (with assistance and corrections by Dmitry Dakhnovsky and server implementation by Vek and Hawk). The full explanation of this system is given in the glicko help file.

In general, your rating will be adjusted by several factors: (a) the result of your game (win, loss, draw), (b) your opponent's rating, (c) the stability of your rating, and (d) the stability of your opponent's rating. If you want to determine how your rating might change after a match with a given player, use the assess command.

At present, there are separate ratings for four kinds of chess: Standard, Blitz,Lightning and Wild. Your current rating is available on your finger file. Once you have an established rating (20 or more games) in a given type, your highest established rating to date will also be displayed. Players with established ratings will also have their ratings listed on several ranking lists (see the best , hbest , rank and hrank help files).

NOTE: On DICS and GICS there's a 5th ratingtype for Atomic chess.

By default, the who command lists logged on users in order of their ratings. This way, you can identify and match players of certain ratings. You can also use ratings in your formula for filtering out match requests from other players. Ratings can also be used to filter out kibitzes and whispers by the kiblevel variable.

(a) In the case of adjourned games that are resumed, ratings are adjusted by the users' ratings at the time the match is resumed rather than the ratings they had when the match was started.

See Also: