Correct answer: Rg6-h6 1.Rg6-h6 ! zugzwang. 1...Kh1-h2 2.Kf3-f2 zugzwang. 2...Kh2-h1 3.Rh6*h3 # 1...Kh1-g1 2.Rh6*h3 zugzw