Author: George Tsavdaris
Date: 17:02:19 07/31/05
>On July 31, 2005 at 19:17:47, Uri Blass wrote: > >I think that there is one problem that prevent accurate rating for Shredder. >Programs need to play also against stronger opponents to get accurate >rating(otherwise players who are stronger against weaker opponents but weaker >against stronger opponents never meat the stronger opponents and get too high >rating). Very nice observation.......! And we have even more on this: Some SSDF-list engines have become so old that the newer Shredder versions (and Junior/Fritz) are crushing them by 36-4,35.5-4.5,37-3. And this leads to many inaccuracies on the caclulated ELO of the stronger engines, as these results are almost worthless for the determination of how stronger a new version has become over its predecessor...... With the exploding evolution of the number of new Chess engines, it's obvious that SSDF(that has to play hundreds of games and with classic time controls too) can't follow, so the list more and more becomes, less accurate at the higher levels......... > >Shredder never played against stronger opponents so it cannot get accurate >rating. > >Shredder8(A1200) and Shredder9(A1200) need to play against opponents like >Deep Fritz8(Quad opteron of WCCC2004) and Deep Junior9 (same quad opteron) in >order to get more accurate rating. > >Note that the rating of Deep Fritz8 and Deep Junior9 on quad opteron is >relatively unimportant because almost no user has them but they should get >rating only to help shredder to get more realistic rating. > >Unfortunately I have no money to give the ssdf quad opteron to test so you can >expect the ssdf of the best programs to continue to be not accurate and >comparison between them can be misleading. > >Uri
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