Mate in 3 · No. 470 · Harder

Queen, rook, bishop and knight

White to play and mate in three.

Position

White
king on g8, queen on e8, rook on e4, bishop on f7, knight on c5, pawns on d2, f3, g4 and h3
Black
king on c7, rook on g2, bishop on g1, pawns on d7 and e5