Correct answer: Qg21...b4 2.Q:c4# 1.Qa1?? (2.f5#/Qf6#/Rf6#) 1...Nd6 2.Nc5#/Rf6#/Qe5#/Qf6# 1...Ne3 2.Rf6#/Qe5#/Qf6# 1...Ne5 2.f5#/