Dragon's Mahjong

Defeat the dragon in this solvable and traditional mahjong game. The goal is to remove all 144 tiles in pairs of the same tiles. Tiles can only be removed if they are not blocked. Free tiles are shown slightly lighter than non-free tiles. You can combine a tile with a season with any other season (spring, summer, autumn, winter), the same applies to a tile with a flower (orchid, plum, bamboo, chrysanthemum).