Yankee Doodle...Mahjong! 4th of July Mahjong! With six themed layouts, great patriotic music, beautiful backgrounds and tiles, you're sure to keep coming back for more fun this Independence Day and all year long. 4th of July Mahjong is a themed version of classic mahjong solitaire. Match identical tiles in pairs to eliminate them from the mahjong board. Choose the right path of matches and you will essentially remove all the tiles from the board. Free today only, 7/3/12.