Correct answer: Nb31...Nb6 2.Qd4#/Q:f4#/Q:d6# 1.Ka7?? (2.Qd4#/Q:f4#/Q:d6#) 1...Rh5 2.Q:d6# 1...R:h6 2.Qd4# 1...Re2 2.Q:f4# 1...