Correct answer: Qc61...Bc6/Bc8 2.N:c6# 1.Qb1?? (2.Nc6#) but 1...Ka7! 1.Qb2?? (2.Nc6#) but 1...Ka7! 1.Qc6! (2.Q:b7#) 1...B:c6 2.N:c6#
