Mate in 3 · No. 50 · ~900 · Check

Queen and two knights

White to play and mate in three.

Position

White
king on h6, queen on g3, knights on a4 and f1, pawns on a2, b2, c2, f4 and g2
Black
king on a8, queen on c6, bishops on b7 and c5, pawns on a5, a7, b6, c7, d5 and d6