<p>Lian Yunzhi solves 3x3 puzzle on several occasions in average time of under 4.5 seconds, according to state media</p><p>A six-year-old <a href="https://www.theguardian.com/world/china">Chinese</a> girl has set a new women’s world record for solving a Rubik’s Cube in just over four seconds, state media reported.</p><p>“Speedcuber” Lian Yunzhi broke the women’s 3x3 average world record twice this month at two World Cube Association certified competitions in Wuhan and Guangzhou, according to sta