Six-year-old Lian Yunzhi broke the women's 3x3x3 Rubik's Cube average world record twice in just three days. She first averaged 4.52 seconds at a competition in Wuhan, China, including one solve in 3.54 seconds. Days later, she lowered the record to an average of 4.27 seconds in Guangzhou. #rubikscube #worldrecords #worldrecord #china