Mate in 3 · No. 484 · Harder

Queen, rook and bishop

White to play and mate in three.

Position

White
king on h1, queen on c8, rook on g2, bishop on f8, pawns on c2, d4 and f4
Black
king on e1, queen on g4, rook on c6, knight on b4, pawns on c3 and c4