Author: Arturo Ochoa
Date: 03:32:55 05/07/04
Go up one level in this thread
On May 07, 2004 at 03:40:40, Tord Romstad wrote: >This discussion is rapidly becoming really silly, but I'll add a few words. > >On May 06, 2004 at 23:22:49, Arturo Ochoa wrote: >>>> >>>>Move shoud be play against en engine of its level. PLaying a Match against >>>>Crafty, it would not be interesting becase we already know the final expected >>>>result. > >Only if by "result" you mean nothing more than the winner of the match. >I don't see why you consider it pointless to match an engine against a >clearly stronger opponent. I do that all the time (in fact, most of my >test matches are against stronger engines). Even when I know that my >engine is going to lose, it is still interesting to see if it loses by >a smaller margin than last time, and to study the games in an attempt to >find out *why* it loses. > >I think it is best to match an engine against a variety of opponents, some >stronger, some weaker, and some close to the same level. > Yes. I agree. When you test an engine, you shoud use all kind of opponents. I cannot discuss that. However, the topic was a supposed Diep-Crafty Match. Later, Mr. Blass introduced the blah blah blah Movei topic and he began to speak about Movei when this is not the topic of the discussion. > >That's a pretty bad example to bring up, because the number of games is too >small to make any statistically valid conclusions. It's better to have a >look at Heinz van Kempen's rating list (based on Nunn matches between the >engines): > >http://www.husvankempen.de/nunn/ratings/ratingsnunn.htm > >The rating difference is bigger than 100, but if we take the error margins >into account it is not entirely impossible that the true difference in >playing strength is less than 100 Elo points. Dismissing Sune's guess of >a 100-point difference as "nonsense" is going too far, IMHO. > >Tord I checked the link you mentioned but I think there are two things that are not valid to establish the difference there either: 1) They use a predefined Nunn Match; 2) The games are blitz. I could not use this material to compare or to use as a reference for long time controls and original books. I agree that the nonsense word is a hard word. I will use another word: impossible. As you have told, Sune is supposing something: in the see of suppositions, I can say freely that it is true or false. In this point, I am not offending him. That is my opinion. Of course, I cannot measure the sensibility of the people. There is only one mistake that I have made here: The topic was a Diep-Crafty match and a third element was introduced so I should have ignored the third element. That´s all.
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