TEHRAN – The 5th International Combined Olympics (ICO 2025) was held in Tehran on October 30 and 31, bringing together around 5,000 competitors from more than 70 countries in person and online.
Combinatorics is a branch of mathematics concerned primarily with counting as both a means and an end to obtaining results, and with certain properties of finite structures.
ICO is an annual competition focused on high quality questions related to combinatorics. The main objective is to help students understand combinatorics as a creative, wide-ranging and fun topic in a fun and engaging way, and to provide them with the opportunity to compete with students from other countries.
ICO is the first competition in the field of combinatorics to include online scoring and rankings. It is open to anyone interested in mathematics and computer science, from high school students to other educational levels.
On the first day of the competition, students attempted to answer 15 short answer questions within two hours. On the second day, participants answered seven long-answer questions within five hours, IRNA reported.
Additionally, the 12th Iranian Geometry Olympiad was held in-person and online on October 17th, attracting 10,000 students from 50 countries.
The Iranian Geometry Olympiad is an annual international competition that evaluates students’ skills in solving geometry problems. Enhance logical thinking, imagination, and analytical thinking using creative and innovative problems in geometry.
Olympic achievements
An Iranian team consisting of four high school students won two silver medals and two bronze medals at the International Olympic Games for Artificial Intelligence (IOAI) held in Beijing, China from August 2nd to 9th.
The competition, organized by Beijing National Day School under the auspices of the United Nations Educational, Scientific and Cultural Organization (UNESCO), attracted 310 students in 80 teams from 63 countries and regions, including Poland, France, Iran, Australia, Brazil, Hungary, China, Mexico, United Arab Emirates, India, Serbia, Russia, Japan, Singapore, the United States and Sweden.
According to IRIB news agency, Arash Yousefnejad and Ali Shayan won silver medals, while Partsa Golestani and Radin Rahmani-Nodehi won bronze medals.
Iran won two silver medals and two bronze medals at the 8th International Economic Olympiad (IEO) 2025, which was held in Baku, Azerbaijan from July 20 to 29. 68 countries participated in this year’s IEO.
Four Iranian students won three gold medals and one silver medal at the 36th International Biology Olympiad (IBO2025) held in Quezon City, Philippines from July 19 to 27, placing them second out of 81 countries, up from third place in 2024.
Five Iranian students won silver medals at the 55th International Physics Olympiad and were ranked 11th in the world.
IPhO 2025, held in Paris from July 18th to 24th, attracted 440 candidates from over 90 countries.
At the 66th International Mathematics Olympiad (IMO2025) held in Australia from July 10 to 20, Iran won two gold medals, three silver medals, and one bronze medal.
The event attracted more than 600 high school students from 112 countries.
Iranian students won seven bronze medals at the 2nd International Mathematics Olympiad for High School Students held in Turkmenistan. It was held from April 21st to 26th.
More than 230 talented students from 15 countries participated in the competition, including Russia, Belarus, Uzbekistan, Tajikistan, Iran, Armenia, Bulgaria, Nepal, China, Turkey, Saudi Arabia, Pakistan, Vietnam, Qatar, and Turkmenistan.
MT/MG