Author: Robert Hyatt
Date: 06:50:42 06/13/01
Go up one level in this thread
On June 13, 2001 at 05:57:11, Christophe Theron wrote: >On June 13, 2001 at 05:35:30, stuart taylor wrote: > >>On June 13, 2001 at 05:05:45, Marcus Kaestner wrote: >> >>> >>>> >>>>It is the most reliable tool that we have to evaluate the chess programs. The >>>>difference in the opponents each program has to face does not matter from a >>>>mathematical point of view. >>> >>>i think you are wrong! >>> >>>having now over two years of experience with my own chessbits-lists, i can say >>>to you that it is VERY easy to place a program with a HIGHLY overrated (or >>>underrated) position into the list. >>> >>>there are dozens of possibilities to fake a rating. >>> >>>i do not say that the ssdf fakes, i only say that it DOES matter which opponents >>>you choose. >>> >>>marcus >> >>Of course it does! >>If you play a 1200 elo rated player you can be sure to win 100% of times, and >>you play 100,000 games, you will have got a rating of 3000 long long before >>then. > > > >No you are definitely wrong. > >Due to the elo calculation formulas, a program which wins 100% of its games >against a 1200 elo opponent will have a rating of exactly 1600. > >Far from 3000, isn't it? > >Food for thoughts. > > > > Christophe Nope. Elo didn't demand that we use "integers" in computing ratings with his formula. As a result, the upper bound on a rating is essentially infinite as every win will increase your rating by some non-zero value. > > > > >> When I used to play vs. Hiarcs 6 and 7 and get my play rated, I always got one >>point for winning against the instant level, which was sooooo easy. If I needed >>to do it for a very important reason, I could be sure to get a 3000 elo rating >>that way, but if I were plaing against its 2 min. per 60 moves, I would never >>even reach anywhere near what my true rating would be-between about 2200-2300 >>elo. >>(though if "instant" means that the human must also play instant, then of >>course there's no hope for any human).One minute per game would be like a human >>"instant", if not two minutes. >>S.Taylor
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