Correct answer: Ke11...Kd3 2.Nd2#/Nd6# 1...Kb5 2.Qf1# 1...Bb5 2.Nd2# 1...Nd6/Ne7/Nb6/Na7 2.N:d6# 1.Kd2?? zz 1...Kb5 2.Qf1# 1
