Mate in 3 · No. 73 · ~1900 · Sacrifice

Queen, two rooks and knight

White to play and mate in three.

Position

White
king on b4, queen on b5, rooks on c8 and g7, knight on e7, pawns on c4, d3 and h2
Black
king on b7, queen on a8, rooks on a5 and b8, bishops on a6 and c7, pawns on a4, b6, d6 and d7