Lian Yunzhi, age six, broke the record earlier this month with an average time of 4.52 seconds at a World Cube Association-certified competition in the Chinese city of Wuhan. Lian Yunzhi of China solved five Rubik’s Cubes in an average of 4.27 seconds at a World Cube Association-certified competition last week. Key points and original sources are listed below.

• Lian Yunzhi, age six, broke the record earlier this month with an average time of 4.52 seconds at a World Cube Association-certified competition in the Chinese city of Wuhan.S1

• Lian Yunzhi of China solved five Rubik’s Cubes in an average of 4.27 seconds at a World Cube Association-certified competition last week.S2