Mathematicians, college students, math hobbyists, and our international community, are you looking for problems that can challenge and offer a deeper understanding of various mathematical principles? As the former coach of the US IMO team, Dr. Andreescu has created problems that beautifully illustrate some of the most difficult concepts.
Would you like to find a resource for interesting problems shared by mathematicians from all over the world?
, our online journal, has a strong community of readers and contributors. Browse the problems or contribute one of your own!