Mahjong Solitaire is the #1 solitaire matching game that uses a set of mahjong tiles. It’s the perfect game for the casual player looking for fun and extensive replay. 
The goal of this game is to match open pairs of identical tiles and remove them from the board, exposing the tiles under them for play. (A tile is said to be open if it can be moved either left or right without disturbing other tiles.) The game is finished when all pairs of tiles have been removed from the board.