Author: David Dahlem
Date: 09:32:56 04/06/01
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On April 06, 2001 at 11:48:19, John Merlino wrote: >On April 06, 2001 at 11:06:24, Antonio Senatore wrote: > >>Hi friends: >> >>I am trying to build a new openings book for CM8K through the import of *.pgn >>files but I obtain the following message: >> >>Import Error: the PGN file contains too many moves >> >>What does this mean? >>How can I solve it? >> >>Can anyone help me? >> >>Thanks in advance. >> >> >>Antonio > >The opening book format in CM8000 has a maximum limit of 64K moves (about >65,000). If the PGN file contains too many games (or the "Depth" setting you >used is too high), then you are likely to get this error. Usually, I use a PGN >file with no more than 3000 games, and I set the depth to be 30, if the book is >going to be used as an "all-purpose" book. > >If the book is going to be specific to a single opening (i.e. a Sicilian Defense >book), then you can usually go to a depth of 40. > >jm Chessmaster is the only quality chess program i know of that limits the number of moves in its opening book format. Are there any plans to remove this limit in future versions? I doubt a really strong book can be created with a limit of 65,000 moves. Dave Dave
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