Correct answer: Na81...Qb3 2.a:b3#/Q:b3# 1...Q:b5+ 2.B:b5# 1...Qa4 2.Nd6#/Na3# 1...Qc3/Qa3 2.N:c3#/Nd6#/Na3#/Na7# 1...Qd2/Qe1/Qe7/
