Correct answer: Rg1-h1 1.Rg1-h1 ! danger: 2.Nf3-g1 # 2.Nf3-g5 # 1...g2-g1=Q + 2.Nf3*g1 # 1...g2-g1=R + 2.Nf3*g1 # 1...g2*h1=Q
