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Hardest Problems on Brilliant

Could you guys post links to the hardest problem you have ever encountered on Brilliant? That way users who are hunting for difficult problems can solve them and boost their rating. Please do not post answers.

Note by Finn Hulse
3 years, 6 months ago

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Hi Finn,

I thought this problem was breathtakingly beautiful in it's simplicity.

I'll ask around the office and see if we can dig up a historically absurdly difficult problem for you to look at. Peter Taylor Staff · 3 years, 6 months ago

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@Peter Taylor This is really a nice problem.I couldn't take up the courage 2 write d correct answer as i was nt sure 4 it. Namita Lohani · 3 years, 5 months ago

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@Peter Taylor This probl em is truly mesmerizing. Soham Dibyachintan · 3 years, 6 months ago

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@Peter Taylor Try this one out: https://brilliant.org/community-problem/an-interesting-problem-264/?group=iiMQMGYWAfX2 Finn Hulse · 3 years, 6 months ago

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@Finn Hulse Cool. Soham Dibyachintan · 3 years, 5 months ago

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@Peter Taylor This....is.....HILARIOUS!!! :D Pranav Arora · 3 years, 6 months ago

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@Peter Taylor I Love this problem, took me so long to get the courage to type in the answer Yan Yau Cheng · 3 years, 6 months ago

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@Yan Yau Cheng Yeah, Ryan sums it up pretty well right here. Peter Taylor Staff · 3 years, 6 months ago

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@Peter Taylor Yeah that one was crazy hard... I mean seriously! That took me forever! ;) Finn Hulse · 3 years, 6 months ago

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@Peter Taylor Thanks! Finn Hulse · 3 years, 6 months ago

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We are pretty sure this is the hardest algebra problem on Brilliant. Could be wrong though, ratings are a dynamic thing.

Edit: I bungled the link the first time it should work now. Peter Taylor Staff · 3 years, 6 months ago

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@Peter Taylor Wow a problem with over 3000 rating O.o William Cui · 3 years, 6 months ago

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@William Cui That's right, I kneel down when I see this problem... 敬全 钟 · 3 years, 5 months ago

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@Peter Taylor Holy moly. \Tries to solve Ahaan Rungta · 3 years, 6 months ago

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Personally thought this algebra problem was particularly difficult :P Katie Gardner · 3 years, 5 months ago

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Maybe hard. https://brilliant.org/community-problem/strokes/?group=HdtDpoEPM9Zd&ref_id=88876 Lee Care Gene · 3 years, 6 months ago

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(-1)^π

Hardest problem... Beyond Imagination · 2 years, 2 months ago

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Knock yourself out:

You won't do it.

Noone's done it.

You might do it. John Muradeli · 2 years, 10 months ago

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There was a number theory before the site was revamped, one that dealt with remainders modulus 19 and included three variables (unknowns, k,a,b based on certain restrictions though). The only answer I saw for that question had an incomplete proof, so that should be sufficient evidence for its difficulty. If anybody here is able to find it... Jared Low · 3 years, 5 months ago

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Can someone post the hardest Combinatorics problem they've come across? José Marín Guzmán · 3 years, 6 months ago

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@José Marín Guzmán Hi Jose,

I don't think this is the hardest combinatorics problem on Brilliant, but this one is relatively recent and rated quite high. Peter Taylor Staff · 3 years, 5 months ago

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Also, just for fun, you can post a ridiculously easy problem. Finn Hulse · 3 years, 6 months ago

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@Finn Hulse There you go , my friend!! :D Panchu Patel · 3 years, 6 months ago

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