Mate in 3 · No. 190 · Harder

Queen, rook and bishop

White to play and mate in three.

Position

White
king on c8, queen on g7, rook on b7, bishop on b2, pawns on c4, e3, f2, f3 and g4
Black
king on c6, queen on f4, bishop on h3, knight on f6, pawns on a5 and b5