PGN is a data format, in which chess games can be stored.
If you install the PGN program on your PC or MAC, you can then use the PGN program to save your chess games:
- load PGN libraries (e.g. from the Internet) into the PGN program.
- send a game to the ChessGenius Exclusive.
- send a game from ChessGenius Exclusive to the PGN program.