Han: 1 han
Closed only
Difficulty: ★★☆☆☆
Requirement:
- Win within one uninterrupted turn cycle after declaring Riichi
- No calls (Chi/Pon/Kan) occur during this time
Meaning:
A quick-win bonus after Riichi. Opponents may intentionally call tiles to cancel Ippatsu.
Good with:
Riichi / Menzen Tsumo / Dora
Cannot combine:
Open-hand yaku