Mate in 3 · No. 45 · Harder

Queen, rook, bishop and knight

White to play and mate in three.

Position

White
king on g3, queen on b5, rook on b8, bishop on g2, knight on h2, pawns on a2, b3, d4 and f4
Black
king on a3, rook on f5, pawns on c4 and d5