Correct answer: Rd41...Ke1/c2 2.Nf3# 1...Kc2 2.Ne3# 1.Kd4?? zz 1...Ke1/c2 2.Nf3# 1...Kc2 2.Ne3# but 1...c:d2! 1.Kd6?? zz 1...Ke1/c2 2.Nf3
