ショウミンカン
小明槓
forming a four-of-a-kind by adding a self-drawn tile to an open three-of-a-kind
N3Noun
Noun
forming a four-of-a-kind by adding a self-drawn tile to an open three-of-a-kind
forming a four-of-a-kind by adding a self-drawn tile to an open three-of-a-kind