Correct answer: Nh81. Nh8! [2. Nf7#] 1. ... Nc7 2. b:c7# 1. ... Ne7 2. f:e7# 1. ... N:b6 2. Q:b6# 1. ... N:f6+ 2. Q:f6# 1. ... Nb4 2. Be7# 1. ... Nf4 2. B