Correct answer: Ka81...Nc4/Nbd1/Nd3/Nba4 2.Nd3# 1...Bg7/Bh6 2.Q:e7# 1...Ncd1/Ne2/Ne4/Nb1/Na2/Nca4 2.Q:d5# 1...Bd7 2.Q:c7# 1