Author: Robert Hyatt
Date: 09:43:34 04/11/02
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On April 11, 2002 at 12:32:09, Uri Blass wrote: >On April 11, 2002 at 09:34:34, Robert Hyatt wrote: > >>On April 10, 2002 at 23:18:42, K. Burcham wrote: >> >>> >>>it is one thing to be able to take each move of game two and game six, and find >>>at least one program that will play the Deep Blue move. >>> >>>it is another to find a bad move that Deep Blue played, and find a program today >>>that will avoid this move and play a better move, and watch the eval climb. >>> >>>what if we all agreed that one certain position that Deep Blue played >>>was a bad move because_______? >>> >>>what if we find a program today that does not play this same bad move? >>> >>>what if we find a program that will play a better move and we can watch eval >>>climb after this move? >>> >>>I know Robert, that in this case you could answer "well if a frog had wings, >>>etc". >>> >>>but i assure you these are honest questions. >>>what if the above did happen, what could we conclude? >>>kburcham >> >> >>The problem is that a game is game... not a series of moves. If you could >>prove that program "X" plays every move in a DB game except move N, and then >>you could prove that move N was better beyond any doubt, then you just proved >>that in _that_ position (only) program X appears to know a bit more. I don't >>think you will ever find a tactical move that program X can find that DB didn't, >>so you are going to be looking at positional stuff only. And proving that >>one positional move is better than another is a _very_ non-trivial thing to >>do... > >The question is how to define tactical move. > >I suspect that all the top programs can find >Kh1 instead Kf1 in game 2 after enough time and it seems that >Kh1 is the winning move when Kf1 is a draw. > >You can say that they find it for positional reasons >but it does not change the fact that they play the better move. > >Uri Can the find it by discovering that Kf1 is a draw? Not a chance... So it is based on serendipity... which is, of course, true for a lot of moves played by computers...
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