Ikkitsuukan

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Ikkitsuukan
Type Yaku
Kanji 一通 or 一気通貫
English Straight
Value 2 han
1 han (open)
Speed Fast
Difficulty Easy

Ittsu (一通), or ikkitsuukan (一気通貫), is one of the standard yaku. This hand consists of three melds in one suit of 1 through 9, any available extra meld, and any pair. This hand may be open or closed.

Tile diagram

Winning tile: or

Open

Winning tile:

Formation

While the hand shows a complete 1-9 grouping from a particular suit, it is best to view as three separate groups of: 123, 456, and 789. This is particularly useful to note when needing to open the hand with such a combination.

Compatability

^ Ippatsu requires riichi to be of any use.

RCH DRI IPP^ SMO TAN PFU IPK ITT YAK SDJ SDO TOI SNA SNK CHA JUN RPK SSG HRO HON CHN CHI RIN HAI HOU CHK
ITT

External links

Ikkitsuukan in Japanese Wikipedia