Mate in 2 · No. 530 · ~1700 · Sacrifice

Queen and rook

White to play and mate in two.

Position

White: king on c7, queen on g6, rook on b6, pawns on d4, g3 and g4
Black: king on a7, queen on d5, rook on a8, bishops on b4 and b7, pawns on a5, c4 and c5