Riichi Mahjong Yaku
Under the River
Also known as: Houtei Raoyui · Houtei · 河底撈魚
A Ron win on the final discard after the last live-wall draw.
Yaku value
Closed hand
1 Han
Open hand
1 Han
Requirements
Claim the last discard of the hand for Ron. The hand may be open or closed.
Common scoring mistake
This is specifically a discard win. Self-drawing the last live-wall tile is Under the Sea instead.
Values follow common modern Riichi rules. Local and tournament rules may differ, especially for double Yakuman.