Author: blass uri
Date: 23:14:13 12/11/99
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On December 11, 1999 at 19:46:50, Bertil Eklund wrote: >On December 11, 1999 at 17:52:56, Tom King wrote: > >>Which of the well known test suites predicts the strength of chess programs most >>accurately? >> >>I ask this, because I recently made some *slight* mods. to the evaluation >>function in my program, Francesca. I ran the LCT-2 suite, and the results >>indicated that it was a wash - the modification gave me about 5 ELO points, >>apparently. >> >>I then ran a series of fast games against another amateur program. I realize >>it's important to play a large number of games, to reduce the margin of error, >>so I ran two matches of 65 games. The result was this: >> >>MATCH 1 >>"Normal" Francesca scored 37% against the amateur program. >> >>MATCH 2 >>"Modified" Francesca scored 45% against the amateur program. >> >>Quite a difference! It implies that the modification is worth over 50 ELO. I >>guess I need to play more games, against a variety of programs to verify whether >>this improvement is real, or imaginary. >> >>Anyhow, beware of reading too much into ELO predictions of test suites.. >> >>Cheers All, >>Tom > >Hi! > >Mr Irazoquis secret test-suite is very impressing! I think it´s about 111 >positions. He can predict a new programs strength better than any other test I >have seen so far. If his predictions remains as good as his previous results, I >hope we can stop publishing our list and just play for fun. > >Bertil SSDF Can you publish the prediction for every new program before testing it? I am interested mainly to know the prediction for programs not in the ssdf list (Fritz6,Junior6 Rebel1century,shredder4,tal2) I do not think that stop publishing the list is a good idea because even if the prediction in 30 out of 30 cases we can not be sure that it will be right in the next case. Uri
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