Mate in 3 · No. 152 · Harder

Queen, rook, bishop and knight

White to play and mate in three.

Position

White
king on f2, queen on g2, rook on c1, bishop on h5, knight on f7, pawns on a2, a3, b2, c3 and c4
Black
king on f5, rook on a6, bishop on h7, knight on d7, pawns on c5 and g7