There will be two rounds in the International Mathematical Olympiad «Formula of Unity»/«The Third Millennium».
The first round, by correspondence, will be held from October 20 to November 10.
Detailed information will be available near the start of the round.
The second (final) round of the Olympiad will be held in the end of February, 2022 at multiple sites in various countries. Detailed information about locations will be available near the start of the round.