Special hands · limit hand

Nine Gates

九蓮寶燈 · Gau Lin Bo Dang

22faan

Mahjiku's default value, from the patterns block of the shipped Hong Kong ruleset. Your table can price it differently; the engine reads whatever your rule set says.

What Nine Gates means

A pure one-suit masterpiece shaped 1-1-1-2-3-4-5-6-7-8-9-9-9, waiting on any tile of that suit to complete.

How to spot it. One suit, three 1s and three 9s wrapped around a full 2-8 run.

An example

What the engine scores that hand at

These are not illustrative numbers: the tiles above were passed to Mahjiku's scoring engine (self-drawn and fully concealed, seat wind North, round wind North) and this is the breakdown it returned.

Line the engine emitted	Faan
Nine Gates九蓮寶燈	+22
Base底	+1
Concealed Hand門前清	+2
Total	25

The 22 faan for Nine Gates is only part of it. The same tiles also satisfy Concealed Hand (+2) — patterns stack in Hong Kong scoring, which is why a hand named for one shape often pays a good deal more than that shape's own value.

What 25 faan actually pays

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	25	+75	+25
半辣上half spicy	384	+1152	+384
全辣上full spicy	8192	+24576	+8192

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. Both doubling tables stop at 13 faan, so this 25-faan hand is paid at the 13-faan row — 384 points under 半辣上 and 8192 under 全辣上. Everything above 13 faan pays the same. The additive model has no ceiling, so there the extra faan still count.

How it interacts with other hands

Replaces Full Flush (13 faan) — the Full Flush line is guarded by `if (!nineGates)` — a Nine Gates hand is a full flush, and only the bigger name is paid. Net effect: the 22 faan for Nine Gates lands instead of 13, a difference of +9. See Full Flush.
Cannot appear with All Honours — the engine reads a hand as exactly one of these; the two describe the same tiles in incompatible ways. See All Honours.
Cannot appear with Half Flush — the engine reads a hand as exactly one of these; the two describe the same tiles in incompatible ways. See Half Flush.
Cannot appear with All Green — the engine reads a hand as exactly one of these; the two describe the same tiles in incompatible ways. See All Green.

Try it yourself

The free faan calculator opens with this hand already selected — add whatever else your hand had and watch the points move.

Open the calculator with Nine Gates already ticked All 0 patterns

More 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.

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.

Let the app count it

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