Author: Dann Corbit
Date: 12:10:46 02/15/04
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On February 15, 2004 at 15:06:20, Bob Durrett wrote: >On February 15, 2004 at 14:50:26, Dann Corbit wrote: > >>On February 15, 2004 at 14:48:29, Robert Hyatt wrote: >> >>>On February 15, 2004 at 14:43:06, Bob Durrett wrote: >>> >>>>On February 15, 2004 at 14:29:52, Robert Hyatt wrote: >>>> >>>><snip> >>>> >>>>In view of the size and complexity of Crafty I wonder whether or not cloning >>>>Crafty is really a good idea for the newbie chess programmer to get started. >>>> >>>>On the other hand, maybe there are parts of crafty which could be used in the >>>>beginning so that the newbie programmer could concentrate on creating his/her >>>>own code for the really important parts. >>> >>>I don't disagree. The parts that always cause me the most concern center around >>>the evaluation and search. I didn't look at his search carefully at all, but I >>>did look at the evaluation, and that has too much copied code... There may be >>>significant search code copied or not. But copying either is really copying the >>>"personality" of the program... >>> >>>Several have started with gnuchess, for example, but by the time they claim it >>>as their own and distribute something, the important stuff has been re-done by >>>the person doing the work, rather than just copied... >> >>This (in my view) is a far worse offense than what has happened with the >>DanChess case. If you use someone's entire program and then slowly modify it, >>that is a simple crime to me. And one with no excuses. > >Unless, of course, it is done with the blessing, encouragement, and consent of >the owner of the copyrighted code. I can see a teacher encouraging his students >to do just that using the teacher's program. The program, such as Crafty, could >serve as a "test bed" for testing new position evaluation, search and other >ideas. The use of "test beds" is a well-known and accepted practice. That has happened many times. It is not difficult to ask permission. And if the first person says, "No!" someone else will say "Go ahead." I am guessing that writing a chess engine completely from scratch will have the best results (IOW -- not one single line from another program). I am speaking of long term results -- ten years from now. Not the quick wins. They are irrelevant anyway. For me the journey to the program is much more interesting than the program itself.
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