Mahjiku › Pattern library › Pure Straight
清龍 · Ching Lung
Pure Straight (清龍 · Ching Lung) is a Hong Kong mahjong hand: A complete 1-to-9 run in a single suit: 1-2-3, 4-5-6 and 7-8-9, all the same suit. Mahjiku's default sheet prices it at 10 faan, and every win also carries the 1 faan base, so a hand whose only named line is Pure Straight totals 11 faan. Under Mahjiku's default additive payout that 11 faan is the payment itself: the winner collects 33 points on a self-draw (自摸), when all three opponents pay 11 each, or 11 from the single player who discarded the winning tile (點炮). Faan values are a table's own call; this is Mahjiku's shipped default, editable in House Rules.
patterns 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.One suit running cleanly from 1 all the way to 9.
The bright sets are the ones that make it Pure Straight; the faded sets are ordinary filler that any hand needs.
These are not illustrative numbers: the tiles above were passed to Mahjiku's scoring engine (won on a discard, with sets claimed from the table, seat wind North, round wind North) and this is the breakdown it returned.
| Line the engine emitted | Faan |
|---|---|
| Ping Hu平和 | +2 |
| Pure Straight清龍 | +10 |
| Base底 | +1 |
| Total | 13 |
The 10 faan for Pure Straight is only part of it. The same tiles also satisfy Ping Hu (+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.
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 | 13 | +39 | +13 |
| 半辣上half spicy | 384 | +1152 | +384 |
| 辣辣上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.
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 Pure Straight already ticked 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.
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