Correct answer: c8N1...Kd4 2.Nc6# 1...Bf4/Rf4 2.Qd5# 1...Rg2/Rg1/Nf4 2.Qe3# 1...Re4 2.Q:f6# 1...Rd4 2.Ng6#/Qf5# 1...Nd4 2.Ng6#