Correct answer: Kb71.Q:b8?? (2.Qb5#) but 1...Ka6! 1.Kb7! (2.Qd2#/Qb6#/Qc5#) 1...a3 2.Q:a3# 1...Nc6 2.Qc5# 1...Nd7 2.Qd2# 1...Na6 2.<
