Mate in 3 · No. 192 · Harder

Queen, rook and two knights

White to play and mate in three.

Position

White
king on e3, queen on g7, rook on f3, knights on b5 and f7, pawns on a2, g2 and g3
Black
king on c8, rook on d8, pawns on a6, b7, c7 and e5