Correct answer: Qf2-g3 1.Qf2-g3 ! zugzwang. 1...f5-f4 2.Qg3-d3 # 1...Ke4-d4 2.Qg3-d3 # 1...g6-g5 2.Qg3-f2 zugzwang. 2...f5-f4
