Mate in 3 · No. 319 · ~1700 · Check

Queen, rook, bishop and knight

White to play and mate in three.

Position

White
king on d8, queen on g3, rook on c6, bishop on f7, knight on b4, pawns on a3, b3, c3, f2 and h3
Black
king on b1, queen on a2, rooks on b2 and e4, bishop on a4, knights on c2 and d2, pawns on b5, c4, d3, d4 and e3