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Mahjong variant · China (competition circuit)

Chinese Official Mahjong

国标麻将 · also called Mahjong Competition Rules, MCR, Guobiao Mahjong Not in Mahjiku yet

Chinese Official (国标麻将 / MCR) is the standardized competition ruleset created in 1998, built around 81 fixed scoring patterns and an 8-point minimum to win — designed to replace regional house rules with one standard.

Players
4
Tiles
144
Hand size
13 + winning tile
Scored in
points (the "81 patterns")
Played in
China (competition circuit), international (WMO events)
Learning curve
advanced

The tiles

Total144
SuitsCharacters, Bamboo, Circles — 1–9, four of each
HonoursWinds (E/S/W/N) and Dragons (Red/Green/White), four of each
Flowers4 flowers + 4 seasons (8 bonus tiles)
Jokersnone

Standard 144-tile set; flowers score fixed bonus points but are excluded from the 8-point minimum needed to win.

How you win & score

A winning hand: Four sets (chow/pung/kong) plus a pair — 14 tiles on the winning tile (Seven Pairs and Thirteen Orphans also qualify).

Scoring: A hand sums every qualifying pattern from the official 81-pattern list, governed by non-overlap rules, and needs at least 8 points to legally win.

Unitpoints (the "81 patterns")
Systemcumulative fan-counting against a standardized 81-pattern list
Minimum to win8 points required to declare a win (flower points excluded)
Limitno maximum; individual pattern grades run from 1 up to 88

Who pays: Discard win: winner gets (score + 8) from the discarder and 8 base points from each other player. Self-draw: all three each pay (score + 8). Losers never pay each other.

What makes Chinese Official mahjong distinct

In Mahjiku. MCR's fixed 81-pattern scoring differs from Hong Kong faan and isn't scored in Mahjiku yet.

Compare Chinese Official with other variants

Chinese Official vs Hong KongChinese Official vs RiichiChinese Official vs TaiwaneseChinese Official vs AmericanChinese Official vs Singaporean

Sources: mahjong.wikidot.com · mahjong.wikidot.com

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