Group 1 - The core viewpoint of the article is the celebration of the Chinese team's victory at the International Mathematical Olympiad (IMO), where they achieved six gold medals and two perfect scores, reclaiming the championship title [1][2]. - The Chinese team scored a total of 231 points, achieving full marks in the first five problems and the highest score of 21 points in the sixth problem [2][17]. - The competition took place in Queensland, Australia, marking the 66th edition of the IMO, which has been held annually since its inception in 1959 [12][14]. Group 2 - The Chinese team consisted of six high school students, including two members, Deng Zheweng and Xu Qiming, who have been selected for the national team for two consecutive years [5][6]. - The previous year's champion, the United States team, secured five gold and one silver medal, finishing in second place [7]. - South Korea and Japan ranked third and fourth, respectively, with South Korea winning four gold and two silver medals, while Japan earned three gold, two silver, and one bronze [9]. Group 3 - The IMO typically consists of six problems over two days, with each day allowing participants to solve three problems within 4.5 hours [16]. - The scoring system awards gold medals for scores of 35 and above, silver for 28 and above, and bronze for 19 and above, with a total of 72 gold medals awarded this year, an increase of 19 from the previous year [17]. - The sixth problem was notably difficult, with only six participants worldwide solving it, resulting in five perfect scores [18].