Mahjong comes from China yet belongs to the whole world. Owing to its comprehensive cultural content as well as its merits of being interesting competitive and helpful to wisdom and friendship it has been an enjoyable pastime for people all over the world for nearly a century.
In order to expand develop the Olympic spirit and advocate a healthy scientific and friendly Mahjong culture to improve the communication and development of the Competitive Mahjong Game and with the participation of Mahjong all over the world we present "iTW Mahjong 13" android online game.