Correct answer: Nbd71...Nb5/Nc8 2.Nc8# 1...e2/Bc4 2.Nc4# 1...g2 2.Qh2# 1...Re6 2.Nb7# 1...Ng2/Nf3 2.Q:h6# 1...Bg2/Bh3 2.Qd1#/Nc4#