Author: John Merlino
Date: 11:55:01 12/03/00
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On December 03, 2000 at 11:23:19, David Dahlem wrote: > >On December 02, 2000 at 21:09:58, John Merlino wrote: > >>On December 02, 2000 at 18:23:02, David Dahlem wrote: >> >>>I have been trying to create an opening book by importing a pgn file. Every >>>attempt has resulted in this message - "import error: an error occurred >>>importing the pgn file". Has anyone else tried to import pgn files into an >>>opening book in CM8000? Does the pgn file have to be free of commentary and/or >>>variations? >>> >>>Dave >> >>If you think the PGN file is completely free of errors, then E-mail me the file >>and I'll pass it on to the development team. Does the error message give you any >>indication of WHERE in the file the error occurred, or WHAT the error is? >> >>jm > >I decided to try a little test. I thought maybe the problem was with the size of >the pgn file so i created some with only 100 games. These were imported without >an error message. Then i tried a pgn file with 500 games and got the error >message. So it appears the problem with CM8000 importing pgn files into the >opening book is with file size. Unless someone wanted to take a large amount of >time splitting a large pgn file into very small ones, the import pgn into CM8000 >opening book is worthless, unless this is addressed in the patch. > >Dave It is possible that the number of games is the problem, but I know for a fact that I have used it to import PGN files with more than 3,000 games. However, the one factor is HOW MANY DIFFERENT OPENINGS are in the PGN file. The more disparate the openings, the bigger the opening book will be, and the opening book format can only handle a certain number of moves. Since the default depth is either 30 or 40 plies (can't remember), this could cause a problem. In other words, you can import more games if the games all use the same family of openings. I do know that the patch is going to address this SOMEWHAT by giving the user many importing options, such as the depth of the book, what criteria to set the frequency of the moves, etc. Hopefully, this will "solve" the problem. jm
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