Correct answer: Qb51...Ng6 2.Be6# 1...Nf1/Neg2/Nd1/Nd5/Nc2 2.e4# 1...e:f6 2.N:g3# 1...e4 2.d:e4# 1.d:e5?? (2.N:g3#) 1...Nf1 2.e4# but 1...c3! 1.Nh7??
