Correct answer: e:f71...Nb6 2.d:c7# 1.c:d7?? (2.d8Q#/d8R#) 1...Nb6 2.d:c7# but 1...R:a6! 1.e:d7?? (2.d8Q#/d8R#) 1...Nb6 2.d:c7# but 1...Bg4! 1.g:f7?? (2.f8