Author: Uri Blass
Date: 16:22:20 01/25/06
Go up one level in this thread
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. Uri
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