I have used Chess Position Trainer for years. I now only play "postal" chess and no longer memorize openings. Also chess position trainer is the only application I have the requires windows and I would like to stop using windows.
Some of my openings seem to be too large to import. I have tried importing into chess tempo, ChessBase, and a local HIARCS chess explorer and they all error on import for large openings.
Chess Position Trainer supports exporting as a single PGN or a game per variation. exporting as a game per variation scales better but still does not work for my largest openings such as King's Indian as black.
How can I migrate my openings from Chess Position Trainer to another database?
I am using Chess Position Trainer 5.04
My preference was to use Chess Tempo but would be happy for suggestions of other chess database software to try, either browser based or local for my mac.