Suukantsu

Suukantsu

Type	Yakuman
Kanji	四槓子
English	Four kans
Value	Yakuman
Speed	Extremely slow
Difficulty	Extremely hard

Suu kantsu (四槓子) is a standard Yakuman, where the hand has collected kan four times. As a result, this hand always has uses a hadaka tanki machi, because four tile calls are required.

Tile pattern

Agari:

Formation

This yakuman requires four kan calls. As a result, the hand in tenpai always uses hadaka tanki. This yakuman is the most difficult yakuman to score, due to the need to acquire all four of a tile type - four times. If any of those tiles are unavailable, it forces the hand to seek other possible tiles to call kan with; or the hand is made unachievable.