Solve the problems, win a prize!

Did you notice the different problems hidden across Budapest’s landmarks in the IMO 2027 video?

Solve the problems and

Win a special prize!

Most of the problems have a special feature, an interesting twist, or some connection to IMO 2027. If you can spot these as well, there may be a bonus!

Submit your answers by email:

specialprize@imo2027.com

Please indicate your name and the location(s) of the problem(s) in your email.

Good luck!

The full Budapest video will arrive in 2027, featuring more locations and more problems. 
Until then, some problems and locations — including some that are not visible in the video — will remain hidden.