Mate in 3 · No. 187 · ~1700 · Check

Queen, rook and bishop

White to play and mate in three.

Position

White
king on c1, queen on h8, rook on d8, bishop on a3, pawns on a4, b4, c3, e2 and h2
Black
king on c4, queen on d4, rook on f7, bishops on b3 and e5, knight on d2, pawns on d5 and f4