fenipulator, by brian hefele, is an extremely simple chess board application. i call it a chess board application, and not a chess application, because it has no validation or knowledge of the rules of the game, it does not keep track of games, it does not track check/mate, &c. it really only keeps track of fen data. it takes in fen, renders a board, allows the player to make a move, and then generates new fen. basic play is as follows: click to select a piece. click elsewhere to move the piece. to confirm your move, copy the link under 'link to current board state,' and paste that to your opponent. your opponent will then click this link, and do the same. hide summary.