He won 4 gold medals in the International Math Olympiads: tips and tricks
6:31
He is the smartest in the history of math competitions ( won more gold medals than some continents)
16:03
The unexpectedly hard windmill question (2011 IMO, Q2)
51:18
Como ganhei 3 medalhas de ouro na Olimpíada Internacional de Matemática
1:14:19
This BRILLIANT MIND Wins GOLD at BOTH IMO and IOI! ( with 11 medals total ! )
9:44
Como é realmente o pensamento matemático?
7:21
Russian Olympiad Mathematics | Exponential equation.
5:42
How to think like a genius ( from a 5x IMO medalist)
13:42