Correct answer: Qg61...Nc5 2.Nb6# 1...Nd4 2.Ne3# 1.Qg7?? (2.Ne3#) but 1...K:d5! 1.Qg4+?? 1...K:d5 2.Qe6# 1...Nd4 2.Ne3#/Q:d4# but 1..
