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Math puzzles — geometry, number theory
A short list: Project Euler and Advent of Code — proof and code more than pencil grids.
Do I need advanced coding or math for Math puzzles?
Some entries do. Project Euler and Advent of Code pair mathematics with programming; later problems get harder and assume you can write a loop. Geometry dissection and lighter number-theory puzzles need less code — check the linked How to play type page before you start.
Relation to arithmetic?
That group is grid + calc; this one holds geometry, number theory, programming — more pure math. Project Euler is the programming benchmark.
What background?
Geometry needs area intuition, number theory needs divisibility and mod, programming needs a loop. No deep theorems required.
Math puzzles
2About this page
- Last updated 2026-09-22
- Source Curated site index plus editorial FAQ compiled from public site descriptions and common player questions
- Audience Players looking for free or browser-based Math puzzles sites
- Covers Category overview, FAQ-style answers, and the full curated list of sites in this category
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