Mahjong is a four-player game sometimes called "Asian poker".

Here are some slides (PDF) with a gentle introduction.

Japanese Mahjong flash game

Great for practice. There is also a bamboo-only version if you want to practice complicated waits.

Reference material


Minefield Mahjong is a two-player game I made with some friends. It's also available on Github if you want to play with the code.

See also the poster (PDF) describing the implementation!