Local yaku

Local Yakus 「ローカル役」 are the yaku not used in the standard ruleset of Japanese mahjong. Some of them are used to be in general ruleset before, they are also known as Ancient Yakus 「古役（こやく）」. The list is extensive. This page will only record some of them, which will remain incomplete.

Two-han yakus

Choupaikou / Sujipaikou / Chousankou

Choupaikou 「跳牌刻」 / Sujipaikou 「筋牌刻」 / Chousankou 「頂三刻」 is a hand containing three triplets in identical suit, where the numbers are stepped by 2, 3 or 4 correspondingly.

• Value: Both are 2 han in general
• Examples:
  • , Ron: (Choupaikou)
  • (Sujipaikou)
  • (Chousankou)

A variation exists if those triplets are in three different suits: Sanshoku choupaikou 「三色跳牌刻」 / Sanshoku sujipaikou 「三色筋牌刻」 / Sanshoku chousankou 「三色頂三刻」.

• Value: 1 or 2 han
• Example: (Sanshoku choupaikou)

Two-han and above

Uumensai

Uumensai / Uumenchi 「五門斉」 is a yaku of containing all of 5 different suits in a hand: manzu, souzu, pinzu, kazehai and sangenpai.

• Value: 2 han; or 5 han / yakuman with more restrictions.
• Example: , Tsumo:

Depending on platforms and rule details, Uumensai may have different values. Generally speaking, 2-han version is the easiest one, while extra restriction is applied if the value is higher, such as:

• May limited in closed-hand only.
• May not allowed in chiitoitsu-form.
• Restricted choices on the pair and sets, e.g. Jihai-pair only.
• Cannot be stacked with kokushi musou if valued a yakuman.

Mondeikou

Mondeikou 「門泥公」 is a yaku used in 4 akadora mahjong rules. When a hand contains all four akadoras, Mondeikou is applied.

• Value: 2 han (may include kuisagari); or minus 4 han which cancels out akadora's 4 han.
• Example: , Agari: or

Mangan

Kinkei dokuritsu

Kinkei dokuritsu / Chinchi dourii 「金鶏独立」 (lit. A golden cock standing alone) is a four-melded hand waiting for 1-sou's hadaka tanki. Ankans are admitted. Also called Chinchiihou 「金鶏和」.

• Value: Usually 5 han
• Example: , Agari:

Mangan / Baiman / Yakuman

Renhou 「人和」 Closed only Varies as yakuman, mangan, 5 han, or etc.	A non-dealer player wins on a discard at the first round.

Yakuman

Daichisei 「大七星」 Closed only Yakuman, or double yakuman	The seven pair variant to tsuuiisou. This may count as an independent yakuman pattern. Otherwise, it may be counted as tsuuiisou.
	Agari:

Katen gecchi

Shiisanpuutaa 「十三不塔」 Closed only Yakuman	A player is dealt a hand, by which, no two tiles can reasonably form a tile group with a tile draw. For completion, one tile may be paired.
	Agari:

Shiisuupuutaa 「十四不塔」 Closed only Yakuman	A player is dealt a hand, by which, no two tiles can reasonably form a tile group with a tile draw. For completion, no tiles are paired.
	Agari:

Suurenkou 「四連刻」 May be open Yakuman	Four consecutive triplets in one suit.
	Agari:

Multiple yakuman

Chousangen

Chousangen 「超三元」 (lit. Super 3 Dragons) is a hand containing all three quads of sangenpais.

• Value: Double yakuman
• Example: , Ron:

When Chousangen is not recognized, such hand values a single yakuman under standard ruleset.

External links

• 麻雀のローカル役

Local yaku in Japanese Wikipedia