Author: Sune Fischer
Date: 15:14:02 03/20/02
Go up one level in this thread
On March 20, 2002 at 17:29:08, Uri Blass wrote: >On March 20, 2002 at 16:57:54, Sune Fischer wrote: > >>On March 20, 2002 at 16:21:53, Uri Blass wrote: >> >>>On March 20, 2002 at 16:07:11, Sune Fischer wrote: >>> >> >>>>> >>>>>>Even three or four days still will not play to perfection. >>>>>>Just look at the numbers 40 to the 30 power will still not give perfection and >>>>>>might take years to complete one move. >>>>>>But we are working on it. >>>>>>Bill >>>>> >>>>>It is not a proof that perfection is impossible. >>>>> >>>>>better searching rules(better pruning and extensions) together with better >>>>>evaluation may convince programs to find always the best move. >>>>> >>>>>You do not need to search everything to the end of the game in order to do it >>>>>and the question how many plies you need to search is dependent on the >>>>>evaluation and on the extensions and the pruning rules. >>>>> >>>>>Uri >>>> >>>>Hmm, I think you need to search pretty deeply to find which is best of 1.d4 and >>>>1.e4 :) >>>>And you prove nothing with pruning rules and nullmove, only way to be _really >>>>sure_ is to do a fullwidth search :( >>>> >>>>-S. >>> >>>The point is that you do not need to prove that you play perfect game >>>in order to play perfect game and I guess that both 1.e4 and 1.d4 >>>lead to draw. >> >>Sure all you need to play perfect is luck, but how will you _know_ that you play >>the perfect game, you can't even tell which is better of e4 and d4? :) >> >>-S. > >I cannot know but if I see that I never lose games I am going to start to >suspect that I play perfect. > >It is not a proof but if I lose games when I do not always win with one of the >colors then it is a proof that I do not play perfect. > >Uri Well unless you're playing perfect opponent, then you might win (almost) every game without perfect play. I think this is the problem we face today with Kasparov, how close is he to perfect play. We can't really say since there is nothing above him to make a reference to. Suppose the engine you build is 3500, it will win almost all games with just a seldom draw now and then, but if perfect play is 4000 there is still a long way to go, you'll just never realize it. Anything that is 500 elo stronger than the opponents will appear almost perfect IMO. -S.
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