Author: Enrique Irazoqui
Date: 02:43:41 01/17/00
Go up one level in this thread
On January 16, 2000 at 21:30:42, James T. Walker wrote: >On January 16, 2000 at 18:13:14, Len Eisner wrote: > >>On January 16, 2000 at 17:50:33, Frank Schubert wrote: >> >>>...after 160 games. I added the result of Shredder - Century 13.5 - 6.5 >>>(+11,=5,-4). >>>Here is the new Elo rating list (the old values are given in parentheses). >>>Again Elo calculation was performed by iteration procedure (start Elo 2600). >>> >>> >>> Program Elo (old) + - Games Score Av.Op. Draws >>> >>> 1 Junior 6.0 : 2676 (2665) 101 74 40 60.00 % 2604 45.0 % >>> 2 Fritz 6a : 2645 (2641) 96 86 40 63.75 % 2546 37.5 % >>> 3 Hiarcs 7.32 : 2624 (2615) 111 75 40 52.55 % 2606 40.0 % >>> 4 Shredder 4 : 2610 (2597) 90 66 60 51.67 % 2597 33.3 % >>> 5 Rebel-Tiger 12.0e : 2603 (2598) 106 59 40 56.25 % 2558 57.5 % >>> 6 Nimzo 7.32 : 2599 (2592) 76 102 40 41.25 % 2660 42.5 % >>> 7 Century : 2493 (2493) 73 73 60 32.50 % 2619 38.3 % >>> >>> >>>It is interesting to see that Century's rating did not change. Its Av.Op. is >>>also still the same. Therefore the result against Shredder fits very well with >>>Century's results before. Shredder increased its rating by 13 points up to 2610. >>>Due to the interdependencies of the iteration procedure the ratings of Shredders >>>opponents are also higher than before. And the ratings of the opponents of >>>Shredders opponents also increased. Hope I am not confusing you too much but >>>that's the way it works. You can simply check that the weighted average of all >>>ratings (weighted by the number of games) is still the same than it was before, >>>namely 2600. >>>So no significant changes after this match. Looking for the next one... >>> >>>Bye >>>Frank >> >>I calculated the ratings with the Fritz 6 rating function, and the ratings were >>different. Any idea why? >> >>Here are the ratings calculated by Fritz 6: >> >>1 Junior 6.0 2406 40 >>2 Fritz 6a 2391 40 >>3 Hiarcs 7.32 2372 40 >>4 Rebel-Tiger 12.0e 2358 40 >>5 Shredder 4 2351 60 >>6 Nimzo 7.32 2328 40 >>7 Century 2242 60 >> >>Len > >It's simple. Fritz calculates the ELO start list assuming the average ELO is >2350. This is easy to prove by just taking an average of the results. I'm >curious as to why 2 programs played 60 games while the others played 40?? >Jim Walker Until the last match, they all played 40 games. Two programs had to play the next match and that's why now they have 60. In the end, all programs will have played 120 games. This is how I plan to play the rest of the tournament. N732-RT J6-Cent RT-S4 H732-N732 F6-J6 Cent-N732 F6-S4 RT-J6 Cent-H732 N732-S4 H732-J6 F6-RT I keep delaying the matches Tiger-Junior-Fritz as much as possible. Enrique
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.