Cluster of stars Share CLOSE Members of the Tsinghua University team pose with their tutor, Han Wentao (standing, left), as they prepare for the 2020 Student Cluster Competition. The university won the competition for the third consecutive year in November. LI PAI/FOR CHINA DAILY It was 6 am, and a team of six students from Beijing's Tsinghua University finally breathed a sigh of relief after an arduous 72 hours of competition. While it might not have been physically challenging in the traditional sense, the nonstop testing, calculating and computer work can still take a huge toll. Fortunately, it was all worth the sore necks, aching wrists and depleted mental resources as they were announced the winner of the 2020 Student Cluster Competition.