Taiwanese Hand Scorer
Taiwanese 16-Tile Mahjong — Taiwanese style, one of the 66 rulesets in the tree, scored under the tai table the Mahjong Wiki records from the videogame developer IGS.
points
How to use it
A finished winning hand is dealt every time you open the page. Read it left to right: the concealed tiles first, then the tile the hand was won on, set a little apart, then any sets claimed off another player’s discard, with the claimed tile lying on its side to show who it came from. Past the vertical rule are the flowers and seasons the player drew. In Taiwanese play every one of them is worth a tai in its own right, which is the biggest difference from the Hong Kong tools. The number on a flower is the wind it belongs to: 1 East, 2 South, 3 West, 4 North.
Under the board are the facts you cannot read off the tiles: the winds, whether the hand was won by self-draw or off a discard, and how much of it was claimed. Everything the score depends on is shown before the score.
Practising against it
Tick Hide the score until I ask for it and the whole hand stays in view while the tai and the payment are held back behind a button. Work the hand out, then press it and check yourself against the breakdown. It is shown line by line, along with who pays what, since the winner may be paid by one player or by all three.
Tick Time how long I take as well and the clock runs from the deal until you ask for the score. Deal another hand draws a fresh one at any point.
The tile artwork is FluffyStuff’s riichi tile set, released into the public domain under CC0.
The rules are the tai table the Mahjong Wiki records from the videogame developer IGS. The code that deals and scores this hand was written by an AI model from them, and is not itself a source: where a score here disagrees with the rulebook, the rulebook is right.