Mate in 1 · No. 221 · Predicted ~1700

Queen, rook and knight

White to play and mate in one.

Position

White: king on e1, queen on h4, rook on g1, knight on d1, pawns on b4, d4, f3, g3, h2 and h3
Black: king on f5, queen on a4, rooks on a8 and f8, knight on c4, pawns on b5, c7, d7 and f6