Mate in 3 · No. 374 · ~1900 · Check

Queen, rook, bishop and knight

White to play and mate in three.

Position

White
king on d8, queen on a6, rook on d4, bishop on g1, knight on a5, pawns on g2, g3 and g4
Black
king on e6, queen on c6, rooks on c5 and h6, bishops on d5 and e5, knight on b4, pawns on b6, c4, c7, f6 and f7