Correct answer: Qh3-h8 1.Qh3-h8 ! zugzwang. 1...Kd5-c4 2.Qh8-d4 # 1...Kd5-c5 2.Qh8-d4 # 1...Kd5-e6 2.Qh8-g8 + 2...K<