Correct answer: Qc61...Bb7/d6/d5 2.Nc6# 1...Ba6 2.Nc6#/N:a6# 1.Qb7?? zz 1...c6/c5 2.Qb6# 1...d6/d5 2.Nc6# but 1...B:b7! 1.Qc6! zz 1...Bb7/B