Riichi Mahjong Yaku
After a Kan
Also known as: Rinshan Kaihou · Rinshan · 嶺上開花
A Tsumo win on the replacement tile drawn immediately after declaring a Kan.
Yaku value
Closed hand
1 Han
Open hand
1 Han
Requirements
Declare a legal Kan, draw the replacement tile from the dead wall, and win with that tile.
Common scoring mistake
Only the replacement draw qualifies. A later self-draw does not count, and the completed hand still needs a legal Yaku structure.
Values follow common modern Riichi rules. Local and tournament rules may differ, especially for double Yakuman.