Mate in 3 · No. 392 · Harder

Queen, rook, bishop and knight

White to play and mate in three.

Position

White
king on h3, queen on f2, rook on c4, bishop on d6, knight on f8, pawns on a3 and d4
Black
king on d5, bishop on e7, knight on a2, pawns on a7, b4, c6 and g5