Optional yaku

Optional yaku are additional yaku, which may be appended to the standard list according to specific house rules.

Optional yaku

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

Sanrenkou 「三連刻」 May be open 2 han	Three consecutive triplets.
	Agari: or

Shiisanpuuta 「」 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.

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