Mate in 3 · No. 264 · ~2100 · Sacrifice

Queen, rook, bishop and knight

White to play and mate in three.

Position

White
king on a2, queen on b3, rook on f7, bishop on e6, knight on e7, pawns on a4, c2, c3, d4 and h2
Black
king on e8, queen on f8, rook on b8, bishops on d8 and g6, knights on b7 and g5, pawns on b6, d7, e5, f5, f6, g7 and h5