Correct answer: Nb61.N:f6?? (2.Qc3#/Qd5#) 1...Ke5 2.Qb2#/Qc3# 1...b4 2.Qd5# 1...Be4/Ba2 2.Qc3# but 1...Kc5! 1.Qc3+?? 1...Ke4 2.N<