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Covering 10 points, a surprisingly tricky puzzle.

3Blue1Brown

Made as part of a monthly series of puzzles for the 2026 Year of Math.

The Phone Number puzzle

Part of a monthly series of puzzles: https://momath.org/mindbenders/

The last IMO problem AI could not solve

A beautiful puzzle that eluded AI, and the intuition it requires. Check out our virtual career fair: https://3b1b.co/talent See new videos early: https://3b1b.co/support An equally valuable form of su

Reinventing Entropy | Compression is Intelligence Part 1

How to study the compressibility of language. Check out our virtual career fair: https://3b1b.co/talent See new projects before they go live: https://3b1b.co/support Animation credit: Manim scenes by

Tie random ends: How many loops?

Recent puzzle solutions on Patreon: https://members.3blue1brown.com/posts/158885046?pr=true