Mate in 2 · No. 566 · ~1900 · Check

Queen, rook and two knights

White to play and mate in two.

Position

White
king on f5, queen on g5, rook on c1, knights on d1 and d4, pawns on b2, b4 and h2
Black
king on a4, queen on b7, rook on d6, bishops on a7 and b1, pawns on a3, b5, b6, c5, d3 and d7