Tanya Khovanova's Math Blog
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!
Identical Twins
A Puzzle from the Möbius Tournament
Red, Yellow, and Green Hats
Square out of a Plus