Yakuman
Open or closed
Difficulty: ★★★★★
Requirement:
- Four quads declared in a single hand
Origin & Trivia:
“Kantsu” is derived from older Chinese terms referring to “a long wooden beam,” connecting to the idea of
extending or lengthening. In mahjong, declaring a Kan literally stretches your hand. Four Kans is a spectacle
that dramatically alters the dora count, making it one of the most chaotic and explosive yakuman.