noun
In shogi, a bishop (角行) that has been promoted upon reaching the opponent's camp, gaining the ability to move like a bishop and a king.
角行が成ると成り角になる。
When a bishop promotes, it becomes a promoted bishop.
成り角は斜めに何マスでも動け、さらに前後左右に1マス動ける。
A promoted bishop can move any number of squares diagonally, and also one square orthogonally.