Renhou

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Renhou
Type Optional yaku
Kanji 人和
English Hand of man
Value Variable
Speed Near instant
Difficulty Luck

Renhou 「人和」 is a common optional yaku. It is scored when a player declares ron with their starting hand, before drawing their first tile, and before anyone makes a tile call. Only non-dealers may score renhou, since the dealer gets the first draw (and discard) of the game.

It can be considered the ron equivalent of chiihou. Unlike chiihou, renhou is not always scored as a yakuman; it may be worth less, depending on the ruleset.

Variations

Renhou scored with real tiles.

Because of the number of variations and interpretations of renhou, it is viewed as optional.

Renhou can be set to a mangan hand by default. If a hand could score more by using regular yaku/dora (without renhou), it will be scored as the higher value. Otherwise, it is a mangan. If a hand has no other yaku, it is scored as a mangan, even if dora would bring it above that.
This rule is used at the World Riichi Championship, the Japan Professional Mahjong League, and in EMA rules, among others.
Likewise, it can be set as a yakuman.
A few rulesets set renhou as a baiman, though this is relatively rare.
Renhou may be considered as a yaku, which is cumulative with other yaku and combines with dora. It is frequently set at 4 han, so that the hand is always worth mangan at minimum. At ZOO mahjong parlors it is set at 8 han.
  • Nashi
Renhou may not be used at all. This is common at online platforms (such as Tenhou and Mahjong Soul) and in most Japanese professional leagues (with notable exception of the JPML).

External links

Renhou in Japanese Wikipedia