Mate in 1 · No. 272 · Predicted ~600

Queen and rook

White to play and mate in one.

Position

White: king on g1, queen on a4, rook on a1, pawns on e4, f2, g4 and h3
Black: king on a8, queen on e8, rook on d8, bishop on c7, pawns on a7, b6 and b7