Author: chandler yergin
Date: 13:54:35 01/26/06
Go up one level in this thread
On January 25, 2006 at 19:22:20, Uri Blass wrote: >On January 25, 2006 at 19:07:51, James T. Walker wrote: > >>On January 25, 2006 at 13:03:02, Uri Blass wrote: >> >>>On January 25, 2006 at 12:37:30, Roger Brown wrote: >>> >>>>>Hello Uri, >>>>>You are playing word games. Vasik is trying to be a "purest". I'm sure you can >>>>>add "knowledge" which if not implemented correctly could lower a programs >>>>>rating. I'm pretty sure Vasik will not do that. >>>>>What would you call endgame knowledge that does not win games but only allows >>>>>the program to draw instead of losing??? (food for thought) >>>>>Jim >>>> >>>> >>>> >>>>Hello James, >>>> >>>>By any definition, endgame knowledge that allows an engine to obtain a draw >>>>instead of a loss must add to a program's rating. >>>> >>>>Or am I missing something here? >>>> >>>>Later. >>> >>>The point is that vasik in the readme wrote the following words (that I >>>mentioned in the post that James replied to): >>> >>>"chess knowledge wins chess games. If it doesn't, it isn't knowledge." >>> >>>I guess that he meant that it increase the result of the engine but if we look >>>at what he said and not in what he meant then his words mean that only drawing >>>games instead of losing games is not knowledge. >>> >>>Note that I do not believe that there is knowledge in evaluation that can help >>>only to draw games instead of losing games because if a program knows by >>>evaluation that some position is a draw it can help it to avoid the draw in case >>>that it has better position and if a program knows by evaluation that some >>>position is a win for one side then it can help it to get it and not choose an >>>alternative that is not clear. >>> >>>Uri >> >>Uri you are starting to post nonsense. Are you saying that there are no >>positions where the best move is only a draw? I know you know better. For >>instance there are positions where a kqkp are a draw. If a computer has this >>knowledge it can trade into this position instead of playing into a loss. The >>bishop pawn comes to mind. To my way of thinking this is knowledge that will >>help save a draw instead of losing. Do you not believe this? >>Jim > >If a computer has not the knowledge of drawn KQ vs KP then it can let the >opponent escape to this draw from a lost position so it is going to have less >wins relative to the case of having the knowledge. Knowledge has nothing to with it! Once entering into the Tb's Perfect Play is done from either side.! Period! > >Uri
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