Author: Dimitris Poulos
Date: 16:03:44 12/28/03
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Hi George, I think you didn't catch the meaning of my question. Perhaps an engine plays worse in longer time controls. That's O.K. Shouldn't it play worse no matter what personality of this engine we use? Isn't it strange for example to say that TheKing X is weak for fast time controls but strong for long time controls when at the same time TheKing Y is strong for fast time controls but weak for long time controls? Dimitris On December 28, 2003 at 18:52:58, George Tsavdaris wrote: >On December 28, 2003 at 17:43:19, Dimitris Poulos wrote: > >>On December 28, 2003 at 14:29:17, Kurt Utzinger wrote: >> >>>************************************************************** >>>Rapid 15m+10s Tournament with The King 3.23 blitz >>>(a new personality only for fast time control games) >> >>Why do you say it is only for fast time control games? You have tested it in >>longer time controls and doesn't have that good results? To me it would be weird >>if it played worse in longer time controls, since it uses the same engine: >>TheKing. At least it should play the same worse as any other TheKing setting >>compared to a fast time control. > > >You may be right and an engine A good at short time controls, be also good in >long t.c. This means the following diagram: > >Relative Strength of engine A*** > 1| > | > | > | > | > | > |..................... > | > O====================== > time/move >or > >Relative Strength of engine A*** > 1| > | . . > | . > | . > | . > | . > | . > | . > | . > |. > | > O========================= > time/move >--------------------------------------------------------------------------- > >But it may be this way: > > >Relative Strength of engine A*** > 1| > |. > | . > | . > | . > | . > | . > | . > | . > | . . > O=================================== > time/move > >This means that the engine A is not so succesfull in long time control, as it >is in blitz. You may say this is very unlikely but here is a test by me: > >(***Relative Strength of engine A means, the points of the engine A after >playing on a specific round robin tournament with X other engines, divided >with the total number of games A played). >---------------------------------------------------------------------------- > >I created a tournament with 10 different CM8000 settings and played a 4-Round >Robin tournament in 8 different time controls (1'/g , 2'/g , 5'/g , 10'/g , >20'/g , 60'/g , 40'/40 , 80'/40). 36 games for every engine at every time >control====288 total. > >Here is the results of 4 engines: > > >Relative Strength of A1*** > 1| > | > | . . . > | . . . . > | > | . > | > | > | > | > | > O===================================== > t1 t2 t3 t4 t5 t6 t7 t8 time/move > > >Relative Strength of A2*** > 1| > | > | > | > | . . > | > | . . . > | . > | . . > | > | > O===================================== > t1 t2 t3 t4 t5 t6 t7 t8 time/move > > >Relative Strength of A3*** > 1| > | > | > | > | > | . . > | > | . . . > | . . > | . > | > O===================================== > t1 t2 t3 t4 t5 t6 t7 t8 time/move > > >Relative Strength of A4*** > 1| > | > | > | . > | . . > | > | . . . > | . > | . > | > | > O===================================== > t1 t2 t3 t4 t5 t6 t7 t8 time/move > >As one can see, no clear result can be extracted from this data, but i have to >say that there is no straight line or an increasing line. Of course very little >games were played and as this is an interesting experiment i would make in the >future a bigger one. > >There is nothing weird from my point of view if an engine A with parameters XX >plays worse in long t.c than that it plays in short t.c. Selective search >parameter is an important factor, but also other parameters change the strength >of the engine at various time controls.
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