Author: Dave Dory
Date: 00:07:51 09/22/99
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On September 22, 1999 at 01:02:31, Nicolas Carrasco wrote: >Now that I have downloaded huge file with the best games of chess Grand Masters. > >I want to know how many ply´s a grand master plays teoricaly book exactly in >order to make the book! >Thanks Nicolas, No such magical number exists I'm afraid. In their favorite openings, a GM may play 20 moves of "book", in other lines, they may jump out from "book" in less than 10. A lot of it depends upon the other player's moves. I'm not aware of a really good way to build an opening book from a file like yours. Normally, a book such as Encyclopedia of Chess Openings is used. You must then select from experience, insight, and 3 wandering psychics ;-) which openings you want your program to play both as white and as black. Openings which lead to a more closed or positional game, are generally not favorable to chess programs. Any opening where equality or better is re-gained several moves later is also to be viewed with suspicion, since your program will be out of book by then, (probably), with no way to "see it through" except through sheer search, blind luck, and the aforementioned wandering psychics. Good luck, Nicolas! Dave
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