This classic free online Mahjongg game requires quite a bit of careful planning and observation to get a high score! 144 tiles are placed in a special quadruple layer face up. A tile is said to be open or exposed if it can be moved either left or right without disturbing other tiles. The goal is to match open pairs of identical tiles and remove them from the board, exposing the tiles below them for play. The game is over when all pairs of tiles have been removed from the board or when there are no pairs left. Tiles that are under other tiles cannot be seen.
