Correct answer: c71.c7! (2.B:e6#/e:d8Q#/e:d8R#/c:d8Q#/c:d8R#) 1...Kd7 2.e:d8Q#/c:d8Q# 1...B:e7 2.B:e6# 1...B:c7 2.e8Q# 1...Nc6 2.c:d8Q