x向聴 = x shanten (x tiles from tenpai)
x枚 = x potential tiles to wait on (sum of each wait*4-no. of tile in hand)

Define hands by numbers, followed by m (for man), p (for pin) and s (for sou).
0m/p/s = red-five. Honors are 1-7z.

聴牌 = tenpai

Clicking a tile throws it (and also highlights the following wait state). Page
reloads and gives another random tile.

Main page has a few randomly generated hands. Hands don't have to be
full-sized; e.g. 7 tile configuration fan be fed to the calculator.

Page is at http://tenhou.net/2/.

----------
Last updated: 2008-12-24