Correct answer: Bg81...Nd8/Nb4/Nb8/Na7 2.d4# 1...B:g7 2.B:g7# 1...Qc1/Qc3/Qc5/Qe4/Qb3 2.Re4# 1...Qc4/Qf5/Qg6/Qh7/Qb1 2.N