Mate in 3 · No. 332 · Harder

Queen, rook and two knights

White to play and mate in three.

Position

White
king on c4, queen on h5, rook on d5, knights on b1 and g7, pawns on a3, c3, d3, e2 and g4
Black
king on f6, queen on d6, knight on e8, pawns on c7 and e4