Correct answer: Qb11...Kc4 2.Qd3# 1...Kb2 2.Qa1# 1...Nf4/Nf8/Ng5/Ng7/Nd4/Nd8/Nc5/Nc7 2.Qd4# 1.Kb5?? zz 1...Kb2 2.Qa1# 1