Riichi Mahjong Yaku List

1 Han: Riichi • Ippatus • Fully Concealed Hands • Pinfu • All Simples • Pure Double Sequence • Yakuhai • After a Kan • Robbing a Kan • Under the Sea • Under the River
2 Han: Double Riichi • Triple Triplets • Three Quads • All Triplets • Three Concealed Triplets • Little Three Dragons • All Terminals and Honours • Seven Pairs • Half Outside Hand • Pure Straight • Mixed Triple Sequence
4 Han: Twice Pure Double Sequence • Fully Outside Hand • Half flush
6 Han: Full Flush
Yakuman: Blessing of Heaven • Blessing of Earth • Big Three Dragons • Four Little Winds • Four Concealed Triplets • Four Quads • All Honors • All Green • All Terminals • Thirteen Orphans • Nine Gates
Mangan: Nagashi Mangan
Double Yakuman: Signle-wait Four Concealed Triplets • Thirteen-wait Thirteen Orphans • True Nine Gates • Four Big Winds