Mate in 1 · No. 253 · Predicted ~900

Queen, rook and knight

White to play and mate in one.

Position

White: king on g2, queen on h1, rook on g1, knight on h2, pawns on a2, c4, d2, d3, d4, e4 and h3
Black: king on h4, queen on d8, rooks on b8 and g8, bishop on g6, knight on h5, pawns on c7, d5, e6, f6 and f7