Mate in 3 · No. 210 · Harder

Queen, rook and two knights

White to play and mate in three.

Position

White
king on g4, queen on e6, rook on f2, knights on a3 and c1, pawns on c2, d2, e3 and g3
Black
king on a5, rook on h1, knight on e4, pawns on b6, c4, c5 and d3