File extension pgn information

PGN stands for Portable Game Notation. File extension PGN is associated with the Portable Game Notation which is used for the chess game. The PGN program is a processible format which works in the computer and is used to record chess games; this includes related data and not just the moves. This popular program is recognised by quite a number of chess games. PGN has two formats; the export format and the import format. The export format which is strict is used to describe data which is prepared using program control.
The import format on the other hand is used to describe data which might have been prepared using hands. The data should be intentionally lax; it should have the ability to handle import format that is lax. PGN’s structure ensures easy writing and reading by users. Computer programs can easily generate and parse using the structure as well. The moves used in the chess game are in algebra. PGN code starts with “tag pairs” (tag name along with its value) then the “movetext” (chess moves along with commentary) follows.