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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, 10 months ago

No vote yet
1 vote

  Easy Math Editor

MarkdownAppears as
*italics* or _italics_ italics
**bold** or __bold__ bold

- bulleted
- list

  • bulleted
  • list

1. numbered
2. list

  1. numbered
  2. list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1

paragraph 2

paragraph 1

paragraph 2

[example link](https://brilliant.org)example link
> This is a quote
This is a quote
    # I indented these lines
    # 4 spaces, and now they show
    # up as a code block.

    print "hello world"
# I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
MathAppears as
Remember to wrap math in \( ... \) or \[ ... \] to ensure proper formatting.
2 \times 3 \( 2 \times 3 \)
2^{34} \( 2^{34} \)
a_{i-1} \( a_{i-1} \)
\frac{2}{3} \( \frac{2}{3} \)
\sqrt{2} \( \sqrt{2} \)
\sum_{i=1}^3 \( \sum_{i=1}^3 \)
\sin \theta \( \sin \theta \)
\boxed{123} \( \boxed{123} \)

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brb, building search and recommendation features :)

Silas Hundt Staff - 3 years, 10 months ago

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I remember one that was in the 3000's a while ago... But I can't find it now :(

Michael Diao - 3 years, 10 months ago

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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

Michael Tong - 3 years, 10 months ago

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Yeah The rating was somewhere near 3200 .

Dinesh Chavan - 3 years, 10 months ago

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Paging @Calvin Lin :P

Michael Tong - 3 years, 10 months ago

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This one has a rating of 2977 and it came out recently. Click here to see it

Sharky Kesa - 3 years, 10 months ago

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