Correct answer: N3f21...Ke2 2.Qc2# 1.N3b2?? zz 1...Ke2/Ke1 2.Qe3# but 1...Kc1! 1.Qb1?? zz 1...Ke2 2.Qc2# but 1...b3! 1.N3f2! zz 1...K