[Event "Game with long & short comments and variations 1."]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]

{I'm the main variation header (long) comment.}

1. e4

{I'm a long comment.}

1... e5

(1... c5 2. Nf3)

2. Nf3 Nc6 3. Bc4

({I'm a long comment too.}

3. Bb5 a6 {I'm a short comment.})

3... Bc5

{I'm a long comment at the end of the game.}

*
