Competitions

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Harder Challenges

Cool couple

One interesting problem from Analysis + one very natural probability question

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Friendly Challenges

A couple of oldies

All three brainteasers this time have a rather short solution, including the last one.

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Open for Practise0

No open for practise competitions as of right now

Finalized14

Harder Challenges

Ended Sun, Aug 2

IMO 2026, Days 1 & 2

The same 3 problems that students tried solving on July 15th and July16th, as a part of Day 1 of the latest International Maths Olympiad. Try not to look up forums online. Good luck!

The same 3 problems that students tried solving on July 15th and July16th, as a part of Day 1 of the latest International Maths Olympiad. Try *not* to look up forums online. Good luck!

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Harder Challenges

Ended Sat, Jul 11

HC-07. Medium-hard Trio

This time three olympiad-style non-trivial problems.

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One interesting problem from Analysis + one very natural probability question

All three brainteasers this time have a rather short solution, including the last one.

The same 3 problems that students tried solving on July 15th and July16th, as a part of Day 1 of the latest International Maths Olympiad. Try not to look up forums online. Good luck!

This time three olympiad-style non-trivial problems.