Correct answer: Nd41...Nf4/Nf8/Ng5/Nd4/Nd8/Nc5/Nc7 2.Q:f4# 1...Bg1 2.Q:g1#/Qg3# 1...Bg3 2.Q:g3# 1...Re5 2.Q:e5# 1...Red4/Rc