Tanya Khovanova's Math Blog
Recreational Mathematics in the Age of AI
Cats and Sausages
Permutation-Based Labeled Chip-Firing
Killer Puzzle
AT, BAT, and CAT
ChatGPT Jokes About ChatGPT
Coin Parity
Fingers on One Hand
Five Sages
A New Laugh from Alexander Karabegov
Icosahedron
A Billiard Table
Friday
My First Book
Two Fathers
Hat Swaps
Minimal 3-Regular Penny Graph
How to Read a Math Paper
The Weight of a 1-Kilo Brick
Missing 5
Two Points on a Cube
A New Twist in a Famous Problem
2025 MIT Mystery Hunt
Happy Fractal Holidays!
A Math Quiz
New Gozinta Boxes Trick
Each Point has Three Closest Neighbors
Dividing Estate
A Story about a Scam
Card Dealing Math
Do Nothing
Egg, Banana, Apple, Walnut, Tangerine, and Avocado
Friends on a Walk
Non-Identical Identical Triplets
Pavel Likes Pets
Pledge of Honor
Gold, Silver, and Bronze Coins
Identical Triplets
Russian-American Race
The Game of SET for Groups (Part 2), jointly with Andrey Khesin
Foams and the Four-Color Theorem
Happy 2025!