http://en.wikipedia.org/wiki/Portable_Game_Notation
How does it help?
- Diff. chess software use this as a common format for storing games of chess.
- Only relevant / helpful if you move PGN files around between diff. computers you use to play chess or are managing a chess database using software, where you usually import/export PGNs stuff like opening repertoires, review games etc.
What is the PGN file and how do I use this to help with my chess. Thanks for the help.