Correct answer: Nc41.Nc6?? (2.Qa5#) but 1...Ka6! 1.Rb3+?? 1...Kc5 2.Qd5#/Qd4#/Qf8#/Qe7#/Qc7#/Qb6# 1...Ka6 2.Qa8#/Qb6# but 1...K