I successfully downloaded the PGNViewer plugin from the wordpress.org plugin data base, and activated it. This plugin is a chess game file viewer which is based on the chess tempo game board. My problem is that there is no instruction on how to embed this into a web page. I can't find a shortcode, or a setup, or anything in the admin area that would actually show a game board.
The only instruction is create a field with a key of pgn ?????