Correct answer: Nf51...Nb7 2.Qc6# 1...Nc6 2.Nd5# 1...Nd6 2.Bd8# 1.Nd5+?? 1...Kc6 2.Rb6# but 1...B:d5! 1.Bc5?? (2.Rc8#) 1...Nd6 2.B