Mate in 1 · No. 271 · Predicted ~600

Queen and bishop

White to play and mate in one.

Position

White: king on g1, queen on d2, bishop on g4, pawns on b2, c3, e3 and f3
Black: king on e8, queen on g5, rook on f8, knight on c6, pawns on d7, f7 and h6