Pure Sequential Triplets

一色三節高 · Yat Sik Saam Jit Gou

Pure Sequential Triplets (一色三節高 · Yat Sik Saam Jit Gou) is a Chinese Official (MCR) mahjong hand: Three triplets climbing one step at a time in a single suit — three 5s, three 6s, three 7s. Mahjiku's default sheet prices it at 0 faan — it ships switched off, so a win whose only named line is this one is worth just the 1 faan base until a table gives it a value in House Rules. 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.

Chinese Official (MCR) pattern. Pure Sequential Triplets comes from the Chinese Official ruleset (MCR / 中國麻將競賽規則), not Hong Kong scoring. Mahjiku ships it as an optional House Rules pattern inside its Hong Kong engine — off by default. See the Chinese Official (MCR) patterns section of the library.

0faan

Worth nothing in Mahjiku's default rule set — it is shipped switched off, and a table turns it on by giving it a value in House Rules. Your table can price it differently; the engine reads whatever your rule set says.

How to spot Pure Sequential Triplets at the table

Three triplets of consecutive numbers, all one suit.

An example

defines it

filler

The bright sets are the ones that make it Pure Sequential Triplets; the faded sets are ordinary filler that any hand needs.

What it adds up to

Priced at 0 in the shipped default, Pure Sequential Triplets adds nothing to a hand's total — a win that names only this one is worth the 1 faan base and no more. A table that wants it to count gives it a value in House Rules, and the engine starts adding it.

What 1 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	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.

Try it yourself

Pure Sequential Triplets is a House-Rules option rather than a chip on the calculator, so it has no switch there. The engine does score it once your table gives it a value; the calculator totals up everything else in the hand.

Open the faan calculator All 53 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.

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.

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