Correct answer: Qh1-g2 1.Qh1-g2 ! zugzwang. 1...Kd4-c5 2.Qg2-d2 zugzwang. 2...Kc5-b5 3.Qd2-a5 # 1...Kd4-d3 2.Qg2-d2 #
