Its REALLY simple to make a chessboard from a PGN here on chess.com. Just click on that chessboard icon to the very left and you get all kinds of options, including copy+paste-ing a PGN.
[Site "Chess.com iPhone"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[FEN "K1Q5/PR3PPp/8/pP3B2/7P/2n5/2p3n1/1k5q b - - 0 1"]
Nxb5 2. Rxb5+ Kc1 3. Qxc2# {1-0}