Author: Robert Hyatt
Date: 09:12:20 05/21/01
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On May 21, 2001 at 11:48:32, Georg v. Zimmermann wrote: >Hi, > >what started as an attemp to get my program ( crazyhouse chess ) to play a >reasonable opening when its opponent tries to kick it out of book (1.g3 or so) >made me think about opening books in general. >IMHO every program can get stronger when the author tries to make it play good >openings even without opening book, that will help in the middle game as well. > >I believe that the ammount of memory taken up by "perfect knowledge" (Endgame >Tablebases) will ever increase while the ammount of memory taken up by "human >knowledge" (Opening books created by humans) will decrease. > >- Programs have become so strong that often times humans do not know better >which move is best in a certain position. >- Programs often get out of book in a losing line. >- Programs often get out of book in a line they do not understand. >- Learning features become better and better, so programs will "learn" openings >over time anyway. >- A single program plays many more games than a GM in a given time period, so to >learn from its own games which are far more predicatble and contain far less >blunders which change the outcome of the game completely makes more sense. > >This might not be true for very small expert written opening books, but I think >it holds true for the Crafty style books. >What do you think ? > >Georg Crafty can play just fine without a book. But the problem is that it will play the same opening over and over, and that will give humans a real chance to beat it easily after they lose a few games but find a mistake it makes and repeats. I don't use a book to find tactical traps. I use a book to provide randomness which is absolutely essential on a chess server where I might play a GM or IM 50+ games in a row, non-stop. If you don't vary, look out...
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