Correct answer: Ne61...Nb4 2.d:c4# 1...c:d3 2.Nd6# 1.R:b2+?? 1...Nb4 2.d:c4# but 1...Rb4! 1.Ne6! (2.Nd4#/Nd6#) 1...Qe7/Qd7/Qc7/Qf8/Ne3/
