Correct answer: Nf51...f6/f5 2.Qg8# 1...Ng5/Nf6/Nf8 2.Q:h2# 1...Bf6/Bg5/Bh4 2.Qa8# 1.Nh5?? (2.Qa1#) 1...f6 2.Qg8# 1...Rb2 2.Q:b2#