Correct answer: N:g21...f:e2 2.Bg6#/Bh5#/Bg8#/Be6#/Bd5#/Bc4#/Bb3#/Be8#/Rf4# 1...d:e2 2.Ng4# 1...g1B/g1N 2.Qf1# 1.N:g2! zz 1...K