Correct answer: Qh11...Ncd6/Ne7/Nb6/Na7 2.Nb6# 1...Nbd6/Nd8 2.Nd:c5# 1...a1Q/a1R/a1B/a1N 2.Q:a1# 1...R:c4 2.Q:c4# 1...Rb5 2.c:b5#