Math Games · Barry Leung
#1 Math Puzzles on Medium
67K followers · 600+ articles
Support Math Games
Make Mathematics
a Little More Beautiful
Every puzzle explained. Every concept illuminated.
One curious reader at a time — since 2023.
π
∑
∫
√
∞
e
Δ
∂
φ
i
67K+
Followers
1M+
Views
#1
Math Puzzles on Medium
700+
Curated Puzzles
∞
Fun to Read
What you get
Six Types of
Mathematical Wonder
From geometry puzzles spotted at Prague restaurants to paradoxes hidden inside Simpsons episodes — Math Games covers the full spectrum of joyful mathematics.
Geometry Challenges
Find the radius. Compute the angle. Prove the area. Problems that reward creative diagram-drawing and Pythagoras.
Visual · Step-by-step
Series & Sequences
From the alternating harmonic series to invariant proofs — the beauty of infinite sums made accessible.
Calculus · Number Theory
Probability Puzzles
100 candies in two boxes. Acute angles at random. Counter-intuitive results explained with clarity.
Combinatorics · Logic
Pop Culture Math
Why is 8i = ∞? Why is 7 a prime suspect? Decoding the real mathematics hidden inside Simpsons jokes.
Complex Numbers · Primes
Invariant Proofs
The most powerful technique in competition mathematics — proving things never change, no matter what.
Olympiad · Proof Writing
Integration Stories
The WiFi password hidden in a calculus problem at a Chinese restaurant in Prague. True story.
Calculus · Real Analysis
Featured examples · The Math You’ll Encounter
Beautiful Mathematics,
Beautifully Explained
Every article comes with graphics, diagrams, and step-by-step visual reasoning. No hand-waving.
The Alternating Harmonic Series (Simpsons episode)
1
−
½
+
⅓
−
¼
+
⅕
−
…
= ln 2
convergent ✓
1
+
½
+
⅓
+
¼
+
…
= ∞
divergent ✗
The professor’s error: treating ∞ − ∞ as a real number. Hover each term above.
“Thank you so much for reading Math Games today, whether you are a math fan, an engineer, a lecturer, a banker, a scientist, or simply some curious soul who stumbled upon this article — I am happy that you stayed till the end.”
— Barry Leung, CoMN, KoMG, ARM · 鳳凰🐦🔥
Why It Matters
Math Education
Should Be Fun
Barry puts a lot of effort in keeping every article fun and engaging. Your donation is what makes that possible — and keeps the puzzles coming.
01
Radically Amazing
Every article on Math Games is intended to invoke curiosity and creativity. It’s Barry’s mission to bring people from all walks of life to enjoy light hearted math puzzles together.
02
Genuine Craft
Barry hand-draws diagrams, writes and rewrites explanations, and searches for the most illuminating visual. Each 4-minute read is hours of careful work.
03
Reach Matters
67,000 followers. A comment from a student saying “this was the first time I understood invariants.” Your donation scales that reach directly.
04
Supporting a Person
Behind every article is a real mathematician balancing writing, tutoring, and academic life. A coffee says: your work is worth something. Keep going.
Some of my works
What Your Coffee Funds
01
Can You Pass This Apple-Orange Interview At Apple 🍎?
02
Are You Smart Enough To Find The Radius?
03
Mathematical Paradox in the Simpsons: 1 − ½ + ⅓ − ¼ + … = 0?
04
I Saw This Math Puzzle At A Chinese Restaurant In Prague
05
Can You Understand These 4 High Level Simpson Math Jokes?
☕ Support Math Games
One Coffee.
Endless Puzzles.
Every contribution directly supports Barry’s writing, tutoring, and the Dauntless Foundation. No amount is too small — and none is forgotten.
☕
Casual Reader
£5
One coffee
The price of a flat white. Covers the research time for one article.
🍬
★ Most Popular
£10
The sweet spot
A meaningful contribution that says: your work matters. Keep publishing.
🔑
True Supporter
£25+
Patron of math
You become part of the story. Barry will thank you a million times.
“I put a lot of time and effort into writing every article for you, so please buy me a coffee ☕ if you are feeling generous.
It’s a great way to support my writing as well as my personal and academic life.”
— Barry 👑 · mathgamesbl.com · Math Games on Medium · Math Games on Substack
It’s a great way to support my writing as well as my personal and academic life.”
— Barry 👑 · mathgamesbl.com · Math Games on Medium · Math Games on Substack