Mate in 3 · No. 166 · Harder

Queen, two bishops and knight

White to play and mate in three.

Position

White
king on a3, queen on h7, bishops on a5 and f8, knight on b6, pawns on b3, b4, e2, g2 and g3
Black
king on f7, rook on b5, pawns on c4, d6 and g7