xyagamo is a japanese style mahjong game. The game is for single player only.
You play a half round match with 3 other computer players.

The purpose of the game is to be the first to complete a hand. A completed hand
consists of four sets of 3 or 4 tiles, and an identicial pair of tiles. The
indivisual sets can be triplets or quadruplets (identicial), or sequences of
3 tiles in a suit. 

To win, be certainty and confidence, enjoy this game of skill and luck.

WWW: http://www.dokidoki.ne.jp/home2/shinmaru/mahjong/index.html