Author: Ulrich Tuerke
Date: 04:53:11 12/22/03
Go up one level in this thread
On December 22, 2003 at 07:39:06, Duncan Roberts wrote: >On December 22, 2003 at 07:24:59, Ulrich Tuerke wrote: > >>On December 22, 2003 at 07:08:09, Duncan Roberts wrote: >> >>>Different software engines have different strengths and weaknesses in different >>>types of positions and I once saw mentioned the idea that one could raise the >>>elo level of chess software by 150 points by having some software which would >>>interface with the top 5 programs and would have all of the strengths and none >>>of the weaknesses of each individual program. This would be achieved as the >>>interface program would ask the individual program to only play the type of >>>position it played best at. >>> >>>kasparov once mentioned that in certain positions junior plays at 150 elo points >>>higher than the competition, on the other hand he said fritz is more 'certain'. >>> >>>An interface program should be a far tougher challenge for kasparov to crack. It >>>would truly reflect the best of computer science against the best chess player. >>> >>>I do not know much about computer chess, but I assume that to implement this in >>>at least a basic way should not take a great deal of time. (a week ?) >>> >>>Is this right? and if so (although it is easy to ask) why is nobody doing it.? >>> >>>There must be many good programmers on this site whose chess programs while good >>>cannot realistically hope to reach the 'top 10'. Surely (assuming the top 5 >>>chess program authors co-operate with this) they would be making a much bigger >>>contribution to computer chess by implementing an interface program. >>> >> >>So, the interface program has to find out, which engine to invoke in a >>particular position. I would guess that this is at least a highly non-trivial >>task. -:) >> > >To do it in a basic way it could look, at open, closed, blocked, beginning , >middle and end game. > >would that be non trivial and should it in theory give it a good improvement. ? Is it really as easy as this ? Can we say, A always plays blocked positions better than B ? I doubt it. > > >>I am also quite doubtful whether it really makes sense to switch engines within >>a game, this way violating continuity of game. E.G., engine A may thrive for a >>position which engine B doesn't like at all. >> >>BTW, SMK's older project - development of a kind of triple-brain - had gone a >>bit into a similar direction. Stephan had 2 different engines, analyzing >>simultaneously, and a 3rd program controlling them and making a decision which >>result to accept. AFAIK, this project had terminated. >> > >if it did not look at the type of position, and it did not analyze itself on >what basis did it decide which is best ? IIRC, the decison making program analyzed for instance the main lines coming from either engine. Stephan had coded some checks which main-line may look "safer" or more reasonable. Or by doing some plausi-checks regarding the terminating leaves of the 2 main lines. Probably, there had been many more criterions like this. >> >>Uli >> >> >>> >>> >>> >>> >>>duncan roberts
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