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For leadersJan 2027

Call for problem proposals is open

Proposals use the official template and must include full solutions. Deadline 31 March.

Member countries are invited to submit problem proposals for JBMO 2027. Each country may send up to six problems across algebra, combinatorics, geometry and number theory.

How to submit

Proposals are kept strictly confidential until the end of the competition.

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Identity19 Oct 2026 · 3 min read

A sun over the black mountain: meet the JBMO 2027 logo

The mark puts Montenegro's peaks inside the M and the rising sun above it. Here is how it was made and how it will appear on medals, diplomas and the site.

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For leadersNov 2026

First announcement sent to members

Dates, eligibility, fees for guest teams and the registration timeline.

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For leadersFeb 2027

Delegation portal: how to register your team

Country codes go out by email. A step-by-step guide to the registration form.

Read the guide →