Optional yaku

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

Optional yaku

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:
Daisharin (pinzu), Daichikurin (souzu), Daisuurin (manzu)
「大車輪、大竹林、大数隣」
Closed only
Yakuman
Any hand that follows this pattern: 22334455667788. The pattern for each suit takes on a different name.
Agari:
Paarenchan
「八連荘」
May be open, Dealer only
Yakuman
Yakuman value awarded to the eighth consecutive hand won. The hand is always awarded to the dealer position, as it is impossible to win eight consecutive hands otherwise.
[[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
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.
Agari:


External links