If you fancy playing chess, Chess PGN Master Pro Key is an excellent application for you. This game has various features for you to enjoy because it allows you to save and share the progress of your game. There is also a live commentary that can be viewed on the right side hand of the screen. You can also easily toggle dark or light mode based on your preferences. The Portable Game Notion or PGN allows you to easily read the format and lets you track the moves of the game, in this case, chess. The PGN is formatted to a standard algebraic notation that allows you to understand and read the data including the name of the players, who wins and loses in the game, and the date of the game played.