Author: George Tsavdaris
Date: 11:39:24 12/08/05
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On December 08, 2005 at 09:05:23, Bernhard Bauer wrote: >On December 08, 2005 at 08:53:06, K. Burcham wrote: > >>On December 08, 2005 at 08:01:05, James T. Walker wrote: >> >>>Rybka still trails Fruitz 2.2.1 by 21 Elo even though it beat Fruit by 27 Elo in >>>head to head match. Rybkas main defeat so far came at the hands of Fritz 8. >>>All my games are run with each program haveing their own cpu/book (except Rybka >>>plays without book) and ponder on.Rybka is a great program but should have it's >>>own "official" book. >>>Jim >> >>with no book, it has been stated many times here that one must take the square >>root of pi, divided by x(a-c2)-3x(a2)over 3.1285. What the x and a and c2 and a2 represent? And how exactly is the formula? I mean what is the x(a-c2)-3x(a2) mean? Also what "over 3.1285" means? >Once this value is applied to >>your results you will see that Rybka has an Elo of 2875 and leads your Fritz 8 >>by 22 games. How did you come up with this? >Of course Uri will adjust this just a little when playing two >>programs, one with book and one without. >> >>kburcham > >Actually your formula is only an approximation, though I have too agree, a good >one. The true value is not 3.1285 but square_root( square_root(96) ). How did you come with 96? Also what is the formula you are talking about and how is derived? >However, that changes not too much. >Kind regards >Bernhard
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