Six-year-old Lian Yunzhi broke the women’s 3×3 average world record twice at two World Cube Association-certified competitions in Wuhan and Guangzhou, according to state broadcaster CCTV on Monday. She posted averages of 4.52 and 4.27 seconds, after solving the Rubik’s Cube five times. She is the first female speedcuber to average less than 4.5 seconds.