Náboj International Mathematical Competition

Náboj is an international mathematical competition designed for teams of five high-school students that represent their schools. The competition lasts 120 minutes during which the teams are trying to solve as many given problems as possible. At the beginning of the competition each team receives six problems. As soon as the team correctly solves any of the problems, it receives a new one. The solutions of the problems are usually numerical. The team that solves most problems correctly in the given time limit wins. Participation in the competition is free of charge. A more detailed description of the competition can be found in the section rules.

https://math.naboj.org/gb/en/

This event takes place in German (...in this location! Other languages elsewhere...).