/jp/ - Otaku Culture

http://www.tenhou.net/0/?L7447

For beginners
Everything you need to know about tenhou itself can be found here http://arcturus.su/tenhou/

Explanations for the tiles, rules, scoring etc can be found here:
http://www.osamuko.com/complete-beginners-guide-to-online-mahjong-part-1-how-to-play/
http://www.ofb.net/~whuang/ugcs/gp/mahjong/mahjong.html
http://www.japanesemahjong.com/reachmahjong/intro.htm

Games to test your Knowledge:
http://www.gamedesign.jp/flash/mahjong/mahjong_e.html
http://arcturus.su/tenhou/scorequiz/yaku.html
http://arcturus.su/tenhou/scorequiz/
http://www.gamedesign.jp/flash/bamboo/bamboo.html

Hand Calculator: http://no-info.no-ip.info:6224/mj/mahjong.html

Try the singleplayer games first.

Playing without knowing what you do is not only frustrating for yourself but also for your opponents, a player that left because he couldn't ron for his no Yaku hand or because someone ron'd his discard just kills the whole fun for everyone.

Usually, a game lasts around 30 minutes, so please, if you're not going to stay until the end, respect the other players and don't join a new game.

Also keep in mind that Mahjong is more a game of "not losing" than straightforward winning.
Furthermore you play with 3 other people and luck plays a big part in it, so don't expect to win more than 1 out 4 games, especially not as a beginner.

If you read some of the linked sites and still have questions feel free to ask.

lol