×

# What are the hardest problems that have been featured on brilliant.org?

Is there an archive somewhere? If not, can you guys post which ones you remember that were the hardest? I want some practice.

Note by Michael Tong
3 years, 2 months ago

Sort by:

brb, building search and recommendation features :) Staff · 3 years, 2 months ago

I remember one that was in the 3000's a while ago... But I can't find it now :( · 3 years, 2 months ago

I remember one from maybe 4 months ago where it had some stuff about a polynomial and it asked to find the sum of $$f(10)$$ over all such polynomials and the answer was $$360$$ or something. I remember seeing only like 25 ppl solved it so I was like woww lol · 3 years, 2 months ago

Yeah The rating was somewhere near 3200 . · 3 years, 2 months ago

Paging @Calvin Lin :P · 3 years, 2 months ago