Basic information about the Olympiad According to age, the Olympiad is held in five categories:
1. Younger Juniors I — 3-4 grades
2. Younger Juniors II — 5-6 grades
3. Juniors — 7-8 grades
4. Seniors I — 9 -IO grades
5. Seniors II — 11-12 grades
Three online qualifying rounds: November — February — April
First qualifying round November 18—22 2026.
Students nominated by the country coordinator, School or individual student application, approved by the organizer Of the Olympiad, may participate in the Olympiad. A student is not required to participate in all three qualifying rounds. They may choose to participate in multiple rounds. The qualifying rounds take place over the course Of several days. There is no fixed start time for the test; participants may begin it at their own discretion, though the test itself is subject to a time limit. As stated in the regulations, the camera and microphone must be active while taking the test. Otherwise, the platform will not accept the submission. The entry fee for the qualifying rounds is €30 per participant for a single entry, payable via the platform (payment instructions are available On the platform). A participant cannot register twice for the same qualifying round. Live final round Based on their performance in the qualifying rounds, students are invited to participate in the live final round (likely in mid-August), where they select one of three topics (problems) offered for their age group; they conduct research on the chosen topic, write an abstract, and present their work before a relevant jury.