code: function tryMove(game, row, col, player) {
    if (game.gameOver) {
      return false;
    }
    return game.board.makeMove(parseInt(row, 10), parseInt(col, 10), player);
  }
docs: A helper function to try moves -- basically a delegate function
  @param {Game} game The game that is currently being played
  @param {integer} row the row
  @param {integer} col the column
  @param {Player} player The player whose turn it currently is
  @returns {boolean} Whether or not it is valid.