Mate in 1 · No. 20 · Predicted ~1100

Queen, rook and bishop

White to play and mate in one.

Position

White: king on g1, queen on a6, rook on e1, bishop on c5, pawns on c2, d3 and h4
Black: king on d7, queen on e8, rooks on a8 and d8, bishop on f8, pawns on b7, c6 and d5