Mahjong is a popular table game in China. The traditional game entails four players. However, it can also be adapted to two or three players. Here is a two-player turn based version of Mahjong game. In order to win the game (Called "HU"() in the game), one has to gather 4 sequences or triplets plus a pair of tiles. Each sequence consists of three tiles of consecutive numbers, such as Character one, Character two and Character three. The triplets are three same tiles. One can exchange the tile in his hand with that the other player discards or when it is his turn to fetch new tile from the stack. One must discard one tile after he fetches a new tile. The player who gathers the 4 sequences or triplets and a pair first wins the game.