Competition Mathematics

Problems worth
sitting with.

Weekly competition mathematics — sourced from olympiads, integration bees, and university competitions. Every step justified. Every source referenced. Plus tools you won't find anywhere else.

Latest problems Week XLIV

Evaluate $I = \int_0^{\pi/2} \frac{1}{\sqrt{1+\cos x}+\sqrt{1-\cos x}}\,dx$

UT Austin Integration Bee Grand Finals, 2025, Q4 · and 3 more

13.1kfollowers
44weeks
176+problems

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Technique Encyclopedia The tools of competition integration — when to use them and why they work

Answer a few questions about your integral and the tree will suggest which technique to reach for first. Competition integrators develop this instinct over years — this is the shortcut.


Results too beautiful to forget

A curated collection of the most surprising, elegant, and genuinely shocking results in competition mathematics. Not problems — results. Things that, once you understand them, change how you see everything else. Click any entry to expand.


About

MKA

PringlesMaths

I'm a British engineering student with several years of competition mathematics experience, including the British Mathematical Olympiad, the British Physics Olympiad, and various university admissions tests. PringlesMaths started as a way to stay mathematically sharp — and turned into something I didn't expect.

Each week I post four problems sourced from olympiads, integration bees, and competition mathematics worldwide, with full LaTeX-typeset solutions — every step written out, every source cited. The account has grown to a community of over 13,000 followers who take competition mathematics seriously. I post because I believe elegant mathematics deserves to be written down properly.

BMOBPhOSTEPMATIntegration BeesUniversity Admissions

Integration Problems, Vol. I

30 competition integration problems with full solutions, hints, and difficulty ratings. Feynman's technique, contour integration, special functions, and more.

Support on Ko-fi

If you find the weekly problems useful, a Ko-fi contribution helps keep the account running. Every supporter is appreciated.

Weekly on Instagram

Four new problems every week — olympiads, integration bees, STEP, and Putnam. Full solutions posted across the carousel.

1-to-1 Tutoring

Sessions tailored to competition preparation, university admissions (STEP, MAT, PAT), or olympiad training. Get in touch to discuss availability.

Olympiad Problems, Vol. I

A curated collection of olympiad problems covering number theory, combinatorics, geometry, and inequalities. Full solutions throughout.

Coming soon
Submit a Problem

Have a problem you'd like to see featured? Send it in — students have had problems from their own competitions appear in Pringles Problems.


Tutoring, collaborations,
and everything else.

Whether you're preparing for STEP, MAT, or PAT, training for the BMO or IMO, or just want to talk about a problem, get in touch. I'm also open to collaborations with university maths societies and competition organisers.

marchinmaths@gmail.com
@pringlesmaths on Instagram
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