Correct answer: Rd41...Nd4/Na1/Na5 2.Q:c1# 1.Nbc4+?? 1...Kf4 2.Ng6# but 1...b:c4! 1.Nec4+?? 1...Kf4 2.Rf5#/Qf3# but 1...b:c4! 1.Qg1+??
