Author: Imran Hendley
Date: 17:00:03 11/19/99
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On November 19, 1999 at 09:41:55, Poschmann wrote: I doubt that grandmasters can't explain their moves. >On November 19, 1999 at 06:45:57, blass uri wrote: > >>On November 19, 1999 at 01:56:01, Poschmann wrote: >> >>>On November 19, 1999 at 00:15:36, Baldomero Garcia, Jr. wrote: >>> >>>>I was wondering how strong computer chess programmers are. >>>>On average, are they masters, experts, class A players or lower? >>>>Baldo. >>> >>>One year ago I was very angry at my bad chess knowledge. At this time I got a >>>nice book in german "Schach am PC" (Chess on PC) from Frederic Friedel and some >>>other authors (for example Chrilly Donninger). My idea was to improve my own >>>chess playing strength by writing a chess program. Very soon I found out, that >>>this idea was completely false. Alpha beta and other well known algorithms have >>>nothing to do with the way of thinking by good players. Most of their knowledge >>>is "hard wired" in their head, created in their childhood. They cannot explain >>>how they find out good moves. In the book mentioned above I found the nice >>>sentence: "The only persons, who cannot write a chess program are grand >>>masters." Currently I think that is true. If you write a chess program, you have >>>not enough time to train yourself. >> >>I understand that you have less time to train yourself when you write a chess >>program but I do not understand the reason grandmaster cannot write a chess >>program. >> >A good chess player _see_ the best moves in a position mostly _without_ >calculating all answers. His brain automatically excludes bad moves from further >consideration. But very often he can not explain why. If you write a program you >must formulate rules for good and bad moves. All players know some basic rules: >centralize your figures, attack the opponent king and so on. But good players >know the exceptions and useful violations of this rules too. The problem in >programming is: How you can formulate the differences between situations fitting >the rules and the exceptions. The probable result will be a poorer program if >you consider more exceptions. > >In tournaments I have seen grandmasters, walking from board to board. They stay >some seconds at each, grasp the situation and go to next. They can rebuild the >figures, they can announce the best move but mostly they can not explain why. >This kind of pattern recognition they use is unprogrammable. >Ralf > >>I think that they can stop playing chess if they want and start writing a chess >>program. >> >>Uri
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