Games & puzzles
Math is more fun when it's a game.
A small, growing collection of puzzles and logic games we use in class — and a few you can play at home with your family. Some are browser-based, others are in-person.
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Browser · all grades Bloom Puzzles
Logic puzzles built on a grid mechanic. Each pack tells a story — Beacon Bridge, Sky Gardens, more coming. Free to play in the browser.
Play on learn.competitivekids.org → -
In-class Math Hangman
Word-style puzzle but the answer is a number. Tests mental arithmetic, number sense, and pattern recognition.
Play next session → -
In-class Tower of Hanoi
Classic recursion puzzle. We use it as a teaching tool for thinking-in-steps and as a warm-up for combinatorics.
Try in next class → -
In-class House of Squares
Counting puzzle with a twist — how many squares can you find in this grid? Useful primer for olympiad-style enumeration problems.
Try in next class → -
Annual Year-game challenge
Annual challenge: make every number from 1 to 100 using only the digits of the current year and standard operations. Great holiday-break activity.
Past challenges → -
Weekly Family Challenge
Weekly puzzle that the whole family solves together — a kid-friendly way to spend 30 minutes around the table.
Subscribe via email →
Want puzzles in your inbox?
We send a weekly Family Challenge to subscribers — one good problem, takes ~30 minutes, all ages welcome.
Subscribe to Family Challenge