Correct answer: Nf61...Bh4/Bf6/Be7/Bd8 2.f4# 1.Ncd6?? (2.Nf7#/Nc4#/Qe4#) 1...Bb3/d3 2.Qe4# 1...Bc2/Bc6 2.Nf7#/Nc4# 1...Bb5 2.
