Mate in 3 · No. 399 · ~1900 · Check

Queen, rook and two knights

White to play and mate in three.

Position

White
king on e7, queen on f1, rook on b4, knights on b2 and b6, pawns on f4 and h2
Black
king on c7, rooks on a4 and f8, bishop on f5, knights on d7 and d8, pawns on a5, c6, d6, e4, e5 and e6