Correct answer: Nh4-f3 1.Nh4-f3 ! zugzwang. 1...e4*f3 2.e3-e4 zugzwang. 2...f3-f2 3.Rh3-c3 # 1...Kc6*d5 2.Nf3-e5 zugzwang. 2..
