Correct answer: Ne81...f4 2.B:e4# 1...Re8 2.d:e8Q#/d:e8B# 1...Q:a6 2.b8N# 1...Qa8 2.b:a8Q#/b:a8B# 1...Q:b7 2.Q:b7# 1.b:a7+?? 1...Nb6 2.Q:b6#