Correct answer: Rd21...Kc5/g5 2.Nf5# 1...Be6/B:c4/Bb7+ 2.Nb7# 1.N:f7+?? 1...Kc5 2.Nf1#/Nf5#/Ng2#/Ng4#/Nd1#/N:d5# but 1...B:f7!
