Mahjiku › Pattern library › Base
底 · Dai
Base (底 · Dai) is a Hong Kong mahjong scoring bonus: Every winning hand starts with one point, just for winning. It is always there — nothing to do. It is worth 1 faan in Mahjiku's default sheet and it is the whole of a win that names nothing else, which is why a table minimum of 3 faan really asks for 2 faan of actual pattern on top. Payment follows the hand's whole faan total, not this line alone: under Mahjiku's default additive model the total is what each payer hands over — all three opponents on a self-draw (自摸), the discarder alone on a discard win (點炮). Faan values are a table's own call; this is Mahjiku's shipped default, editable in House Rules.
bonus block of Mahjiku's default rule set. House rules vary from table to table — this is one common setting, not the only "correct" one. Your table can price it differently; the engine reads whatever your rule set says.Counts automatically on any win.
The base is 1 faan, and it is the whole of a win that names nothing else — which is why the table minimum matters: 3 faan is the floor, so a hand needs 2 faan of actual pattern on top of the base before it is a win at all.
Faan is not the score by itself — it is the number the table turns into points, and Hong Kong tables do that two different ways. Both are shipped in Mahjiku; the additive model is the default.
| Payout model | One payer owes | Self-draw 自摸 | Discard 點炮 |
|---|---|---|---|
| Additivefaan is the payout | 1 | +3 | +1 |
| 半辣上half spicy | 0 | +0 | +0 |
| 辣辣上full spicy | 0 | +0 | +0 |
Self-draw: all three opponents pay. Discard: only the player who threw the tile pays. Both columns are the winner's gain, straight out of the app's settlement function.
Worth knowing. Under a doubling table a hand below the 3 faan minimum pays nothing at all — the zeros above are the engine's minimum-faan gate, not a rounding artefact.
The base is the one faan every win opens with, before a single pattern is named. It is why the smallest possible winning total is not zero, and why a table minimum of 3 faan really means "two faan of actual hand".
There is nothing to tick for the base — every win the calculator scores already opens with it. Add the rest of the hand and watch the total move.
Open the faan calculator All 53 patternsMore context: the pattern library lists every hand by family, the scoring guide explains how faan becomes points, and the FAQ answers the questions people ask before their first game night.
Last updated: 2026-08-27. This page is generated from Mahjiku's shipped scoring engine — the date moves only when its content does.
Game points only. Mahjiku records mahjong points for a friendly table — no betting, no money, nothing to cash out. Pencatat skor mahjong. Bukan judi, tanpa taruhan.
Mahjiku names every winning hand, scores it, and settles the table — live, on everyone's phone.
App Store Google Play© 2026 Steven Eka Halim · Mahjiku records game points only. Pencatat skor mahjong. Bukan judi, tanpa taruhan.