Mate in 3 · No. 316 · Harder

Queen, two rooks and knight

White to play and mate in three.

Position

White
king on g7, queen on d3, rooks on c8 and e4, knight on b1, pawns on b4, c4, f2 and g3
Black
king on e6, rooks on f3 and h6, pawns on d6, e5, f4 and g4