Correct answer: Qc3-d2 1.Qc3-d2 ! zugzwang. 1...Qb1-e1 2.Qd2*e1 # 1...Qb1-h7 2.Qd2*b2 # 1...Qb1-g6 2.Qd2*b2 # 1...Qb1-f5