Congratulations, as always, to everyone who got to participate in the 2025 International Mathematical Olympiad, and especially to the gold and other medalists. Gautham Kamath highlights 11th grader Warren Bei, who in his 5th (!) IMO was one of five participants with a perfect 42/42 score, along with Ivan Chasovskikh, Satoshi Kano, Leyan Deng and Hengye Zhang.

Samuel Albanie: Massive respect to the students who solved P6.

Congratulations to Team USA, you did not ‘beat China’ but 2nd place is still awesome. Great job, China, you got us this time, three perfect scores is crazy.

You’ve all done a fantastic, amazingly hard thing, and as someone who tried hard to join you and only got as far as the [****, year censored because oh man I am old] USAMO and would probably have gotten 0/45 on this IMO if I had taken it today, and know [...]