Mate in 3 · No. 354 · Harder

Queen, two bishops and knight

White to play and mate in three.

Position

White
king on a2, queen on h3, bishops on b3 and g2, knight on g3, pawns on a3, d2 and g4
Black
king on a8, knight on c6, pawns on a5, a6, b5 and c7