Correct answer: O-O1...Kg3 2.Nf1# 1.h5?? zz 1...Kg3 2.Nf1# but 1...Kg5! 1.Ng2+?? 1...Kg3 2.Bf4# but 1...K:f5! 1.Neg4+?? 1...Kg3 2.Rg
