Mate in 3 · No. 391 · ~1700 · Check

Queen, rook, bishop and knight

White to play and mate in three.

Position

White: king on d6, queen on f4, rook on b8, bishop on b1, knight on a2, pawns on a4, c2, c3 and h2
Black: king on h6, queen on g6, rooks on e7 and g4, knight on g7, pawns on e4, e6, f7, g3, g5 and h3