Mate in 1 · No. 263 · Predicted ~1600

Queen and knight

White to play and mate in one.

Position

White: king on b6, queen on c4, knight on c3, pawns on b3, b4, d2, g2, h2 and h4
Black: king on d6, rooks on e8 and g8, bishop on e7, knight on f3, pawns on b5, f5, h5 and h6