Correct answer: O-O1...B:h3 2.N:h5# 1...B:f3 2.Nf1# 1.N:h5+?? 1...K:h3 2.N:g4#/Nf1# but 1...B:h5! 1.Ne2+?? 1...K:h3 2.N:g4#/Nf1# but
