Mate in 1 · No. 197 · Predicted ~1700

Queen, rook and two bishops

White to play and mate in one.

Position

White
king on b1, queen on f5, rook on c1, bishops on a4 and h4, pawns on a2, b2, g2, g4 and h2
Black
king on e8, queen on g7, rooks on a8 and c6, bishops on b8 and c8, knight on d1, pawns on a7, c5, d6, e7, f7 and h7