Riichi Mahjong Yaku
Little Three Dragons
Also known as: Shousangen · Shosangen · 小三元
Two dragon triplets or quads plus a pair of the third dragon.
Yaku value
Closed hand
2 Han
Open hand
2 Han
Requirements
Complete two sets from White, Green, and Red Dragons, and use the remaining dragon as the pair.
Common scoring mistake
The Yaku itself is 2 Han, but the two dragon sets normally add two separate Yakuhai, making the hand worth at least 4 Han before bonuses.
Values follow common modern Riichi rules. Local and tournament rules may differ, especially for double Yakuman.