Correct answer: Qb81...Nb5 2.Rg6# 1...Ng4/Ng8/Nh5/Nfe4/Ne8/Nfd5/Nd7 2.Qd7# 1.Qa8+?? 1...Kb5 2.Na7# but 1...Kc7! 1.Qb7+??
