Correct answer: Qg2-g3 1.Qg2-g3 ! danger: 2.Nf7-d6 # 1...Nf2-g4 2.Qg3-d3 # 1...Nf2-e4 2.Nf7-h6 # 1...Kf5-e4 2.Qg3-f3 #