Mate in 3 · No. 409 · ~1800 · Check

Queen, rook and bishop

White to play and mate in three.

Position

White: king on g1, queen on e3, rook on d5, bishop on g5, pawns on a3, d4, e2, f3 and f4
Black: king on h8, queen on h5, rooks on h6 and h7, knight on f5, pawns on e5, f6, f7 and g6