Correct answer: Qb41...c5 2.Qb7# 1...e6/e5 2.Nd6# 1...Nb3 2.Q:c2# 1...Ng7/Nf4+ 2.Rf4# 1.g:h5?? (2.Rf4#) 1...e5 2.Nd6# but 1...K:f5! 1.Kg1?? zz 1.