# Sudoku Aura

> Sudoku Aura is a free, ad-light Sudoku app for iOS with a calm, focus-first design.
> The site offers a browser-playable Sudoku, printable PDF-style puzzle sheets, and
> guides on Sudoku rules, strategy, and the focus benefits of playing.

## Play

- [Play Sudoku online](https://sudokuaura.com/): free browser Sudoku, no sign-up.
- [Daily Sudoku](https://sudokuaura.com/daily): one free puzzle per day, same for everyone.
- [Easy Sudoku](https://sudokuaura.com/easy): beginner puzzles.
- [Medium Sudoku](https://sudokuaura.com/medium): intermediate puzzles.
- [Hard Sudoku](https://sudokuaura.com/hard): advanced puzzles.
- [Evil Sudoku](https://sudokuaura.com/evil): diabolical/extreme puzzles for experts.

## Printable puzzles

- [Printable Sudoku](https://sudokuaura.com/print): overview of the free printable sheets.
- [Printable easy Sudoku](https://sudokuaura.com/print/easy)
- [Printable medium Sudoku](https://sudokuaura.com/print/medium)
- [Printable hard Sudoku](https://sudokuaura.com/print/hard)
- [Printable 4x4 Sudoku for kids](https://sudokuaura.com/print/kids)
- [Printable 6x6 Sudoku](https://sudokuaura.com/print/6x6)
- [Blank Sudoku grid](https://sudokuaura.com/print/blank)

## Guides

- [Sudoku for Kids: A Fun First Puzzle (with Free 4x4 Printables)](https://sudokuaura.com/guides/sudoku-for-kids) — How to introduce kids to Sudoku with easy 4x4 and 6x6 grids. Simple rules, the right starting age, parent tips, and free printable kids Sudoku puzzles. Markdown: https://sudokuaura.com/guides/sudoku-for-kids.md
- [Killer Sudoku: Rules and How to Play (Beginner's Guide)](https://sudokuaura.com/guides/killer-sudoku-how-to-play) — Learn how to play Killer Sudoku — the rules, how cages and sums work, the 45 rule, and beginner strategies to solve your first cage-based puzzle. Markdown: https://sudokuaura.com/guides/killer-sudoku-how-to-play.md
- [Why Do People With ADHD Like Sudoku? The Focus Puzzle Explained](https://sudokuaura.com/guides/sudoku-and-adhd) — Sudoku's clear rules, instant feedback, and satisfying 'aha' moments make it unusually ADHD-friendly. Here's why the puzzle clicks with ADHD brains — and how to get the most out of it. Markdown: https://sudokuaura.com/guides/sudoku-and-adhd.md
- [Types of Sudoku Explained: Killer, Jigsaw, Mini, X and More](https://sudokuaura.com/guides/types-of-sudoku) — Beyond the classic 9x9 grid: a plain-English tour of the most popular Sudoku variants — killer, jigsaw, mini, X-Sudoku, samurai, hyper — and the related Suko puzzle. Markdown: https://sudokuaura.com/guides/types-of-sudoku.md
- [Is Sudoku Aura Free? Web Game vs. iOS App Explained](https://sudokuaura.com/guides/is-sudoku-aura-free) — Yes — Sudoku Aura is free to play online with no sign-up or ads. Here's exactly what the free web game includes and what the one-time $3.99 iOS app adds. Markdown: https://sudokuaura.com/guides/is-sudoku-aura-free.md
- [Hidden Singles and Hidden Pairs: The Sudoku Techniques Beginners Miss](https://sudokuaura.com/guides/hidden-singles-and-pairs) — Learn how to find hidden singles and hidden pairs — two essential Sudoku solving techniques that unlock cells even when a box looks full of candidates. Markdown: https://sudokuaura.com/guides/hidden-singles-and-pairs.md
- [Sudoku Difficulty Levels Explained: From Easy to Evil](https://sudokuaura.com/guides/sudoku-difficulty-levels-explained) — What makes a Sudoku easy, medium, hard, or evil? Learn how difficulty is really measured, how many clues each level has, and which one is right for you. Markdown: https://sudokuaura.com/guides/sudoku-difficulty-levels-explained.md
- [Is Sudoku Good for Your Brain? 5 Surprising Mental Benefits](https://sudokuaura.com/guides/benefits-of-playing-sudoku) — From improving memory to reducing anxiety, explore the science-backed mental health and cognitive benefits of playing daily Sudoku puzzles. Markdown: https://sudokuaura.com/guides/benefits-of-playing-sudoku.md
- [Advanced Sudoku Techniques: How to Spot and Use the X-Wing](https://sudokuaura.com/guides/advanced-sudoku-x-wing-technique) — Stuck on expert or evil-level Sudoku puzzles? Learn advanced elimination strategies like the X-Wing to crack the hardest grids. Markdown: https://sudokuaura.com/guides/advanced-sudoku-x-wing-technique.md
- [Mastering Intermediate Sudoku: Naked Pairs and Pointing Groups](https://sudokuaura.com/guides/intermediate-sudoku-strategies) — Ready to move past the basics? Discover intermediate Sudoku techniques like Naked Pairs and Pointing Pairs to solve medium-difficulty puzzles with ease. Markdown: https://sudokuaura.com/guides/intermediate-sudoku-strategies.md
- [How to Play Sudoku: A Beginner's Guide to Rules and Strategy](https://sudokuaura.com/guides/how-to-play-sudoku) — Learn the basic rules of classic Sudoku, beginner strategies to solve your first puzzle, and tips to improve your focus. Markdown: https://sudokuaura.com/guides/how-to-play-sudoku.md

## Other languages

Spanish, German, French, Portuguese, Norwegian, Turkish, Japanese, Dutch,
Swedish, Danish and Finnish versions live under /es, /de, /fr, /pt, /no, /tr,
/ja, /nl, /sv, /da and /fi.

## Optional

- [Sudoku Aura on the App Store](https://apps.apple.com/us/app/id6760272815)
- [Sitemap](https://sudokuaura.com/sitemap-index.xml)