Correct answer: Rd61...Bc1/Bf6/Ba3 2.Nf6# 1...Ng1/Ng5/Nh2/Ne1/Nd2/Nd4 2.Nd2#/Nd6# 1...Ne5 2.Nd6#/Nf6# 1.Q:b2?? (2.Nf6#)
