Mate in 3 · No. 148 · Harder

Queen, bishop and two knights

White to play and mate in three.

Position

White
king on h4, queen on a7, bishop on d6, knights on a1 and b2, pawns on b3, d4 and f2
Black
king on f4, queen on e5, rook on c8, bishop on g8, pawns on e6 and f3