In all participating countries, the contestants have taken both papers of the contest. They spent 9 hours thinking about the problems. Now it is the leaders’ turn: they will grade the work of their participants.

From this moment on, you are allowed to talk about the problems. See here what some of the contestants thought of the contest:

You can share your own experience now on the forum ( How did you solve the problems? Which one was your favorite? On the forum you can also introduce yourself and meet the other contestants there. 

For each problem, a video is made, where the problem is discussed. You can find those videos on YouTube and in the app. 

Good luck to the leaders with grading the work!

By Marieke