Author: Miguel A. Ballicora
Date: 09:49:54 03/20/02
Go up one level in this thread
On March 20, 2002 at 07:44:18, Sune Fischer wrote: >On March 20, 2002 at 05:49:56, Gian-Carlo Pascutto wrote: > >>On March 20, 2002 at 05:47:28, stuart taylor wrote: >> >>>The worst would have to be about 0 elo. >> >>No. ELO is a relative scale. You can have ELO ratings from -inf to +inf >>if you want to. >> >>-- >>GCP > >Of cause you can't _actually_ reach +-inf, for several reasons. It depends on how the rating is calculated. In other words, it depends on the implementation. The classical way is to give a starting rating to a player and it is updated with each tournament. That is what you are referring. However, if you do not have a "starting" rating you can certainly reach -inf. Playing the first 100 games a losing them all gives an estimated rating of -inf. Anyway, inf is a limit so in any case there no problem to say that elo scale goes from -inf to inf, whatever the reference is. Regards, Miguel > >It would take an infinite number of games, which would require an infinite amout >of time. >And even the perfect player must be rated below +inf because chess is limited >yada yada yada random player etc.... > >However, it seems a deterministic engine could lose _all_ the games, simply by >playing another deterministic engine, which just happend to win that particular >game. > >-S.
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