Six-year-old Chinese speedcuber Lian Yunzhi has broken the women’s world record for the 3x3x3 Rubik’s Cube average twice in competitions held just three days apart. Lian first set a record average of 4.52 seconds at a World Cube Association-certified competition in Wuhan, finishing third overall in a field that included both male and female competitors. Three days later, she lowered the record to 4.27 seconds and won another WCA-certified competition in Guangzhou. Her Guangzhou average was calculated from five solves timed at 4.20, 4.39, 4.54, 4.02 and 4.22 seconds. Under WCA rules, the fastest and slowest times are discarded and the remaining three are averaged. The result made Lian the first female speedcuber known to achieve an official average below 4.5 seconds.
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