About

The Baltic Olympiad in Informatics (BOI) is an annual programming competition for secondary school students. First held in 1995 in Tartu, Estonia, the contest initially brought together three countries. Since then, BOI has grown into a well-established event with participation from countries across the Baltic and Nordic regions and beyond.

Contestants solve algorithmic problems individually over two competition days. The problems test skills in algorithm design, data structures, and problem solving.

The 33rd BOI will be hosted in Bergen, Norway in 2027, organized by Norsk informatikkolympiade (NIO).

Recent editions

• BOI 2026 - Espoo, Finland
• BOI 2025 - Torun, Poland
• BOI 2024 - Vilnius, Lithuania
• BOI 2023 - Lyngby, Denmark
• BOI 2022 - Lubeck, Germany

Past problems and results are available in the BOI archive on CSES.

Contact

The organizers can be contacted via nio[at]nio.no.