Correct answer: Na41...b4 2.c4# 1.Qe7?? (2.Q:d6#) but 1...f:e4! 1.Qe6+?? 1...Kc6 2.Q:d6# but 1...B:e6! 1.Qf8?? (2.Q:d6#) but 1...f:e4! 1.Qd7?? (2.Q:d
