One Puzzle, Every Day
A handcrafted puzzle each morning. Build a quiet habit that exercises your logic without stress.
Sudoku a Day — Your Daily Logic Workout
One puzzle a day. No ads. No rush. Just logic, focus, and a quiet moment for your brain.
Made for daily solvers
Why Sudoku a Day?
We craft a fresh puzzle every morning so you can build a calming routine that keeps your brain sharp.
No Ads, No Distractions
Clean design, smooth interaction, zero interruptions. Just you and the puzzle.
Strategies for Every Level
From first steps to expert techniques. Free guides, tips, and printable resources included.
Loved by Daily Solvers
“Perfect for my morning routine. Clean and calming.” — Maria L.
“No ads, no stress. Just good puzzles.” — James T.
“I've tried many Sudoku apps. This is the only one I keep.” — Anna K.
More Than Just Puzzles
Free Printable PDFs
Weekly packs in A4 and US Letter, including large-print options.
Browse printable packs →Learn at Your Pace
Step-by-step strategy guides for beginners through expert solvers.
Explore strategy guides →Track Your Progress
Play in the iPhone app with dark mode and continue where you left off.
Get the iPhone app →Quick FAQ
Is Sudoku a Day really free?
Yes. Completely free. No ads, no subscriptions, no hidden anything.
What difficulty levels do you offer?
Easy, Medium, Hard, Expert, and Master. Start easy and move up when ready.
Can I play on paper?
Yes. We publish free printable PDFs every week in multiple formats.
Start Your Daily Practice
A new puzzle waits for you each morning. No pressure, no timer. Just clear thinking and a quiet moment.
Play Today's PuzzlePlay Sudoku a Day!
Sudoku is one of the most popular puzzle games of all time. And it's very simple: fill the 9×9 grid so every row, column, and 3×3 block shows each digit from 1 through 9 exactly once. As you chip away at the clues, you'll give your brain a serious logic workout. Stick with it daily and you'll notice sharper focus and quicker thinking before you know it. Ready to dive in? Hit "start" and watch these free puzzles become your go-to break.
About Sudoku
This Japanese classic needs no math wizardry, just clear thinking and patience. Learn more about Sudoku. Each game starts with a partially filled grid, and everything else comes down to pure logic.
How to play Sudoku
The goal of Sudoku is to fill in a 9×9 grid with digits so that each column, row, and 3×3 section contain the numbers between 1 to 9. At the beginning of the game, the 9×9 grid will have some of the squares filled in. Your job is to use logic to fill in the missing digits and complete the grid. Don't forget, a move is incorrect if:
- Any row contains more than one of the same number from 1 to 9
- Any column contains more than one of the same number from 1 to 9
- Any 3×3 grid contains more than one of the same number from 1 to 9
Sudoku Tips
Sudoku is a fun puzzle game once you get the hang of it. At the same time, learning to play Sudoku can be a bit intimidating for beginners. So, if you are a complete beginner, here are a few Sudoku tips that you can use to improve your Sudoku skills.
- Scan rows, columns, or 3×3 blocks that already hold five or more numbers. The unused digits often have only one possible spot.
- Mentally split the board into three vertical bands and three horizontal bands. If two copies of a digit already sit in the same band, the third copy must land in the only 3×3 block left in that band. Check the empty cells there to nail the exact square.
Want to learn more? Check out our complete guide on how to play Sudoku and explore advanced strategies to improve your solving skills.
Master Sudoku Strategies
Ready to take your Sudoku skills to the next level? Learn these essential techniques:
- 🚀 50+ Sudoku Tips & Tricks (Start Here!)
- Beginner Tips & Simple Patterns
- Naked Singles
- Hidden Singles
- Naked Pairs
- X-Wing Technique
- XY-Wing Technique
- Swordfish Technique
- Trial & Error
Now that you know a little more about Sudoku, play and enjoy this free online game.
Free Printable Sudoku Puzzles
Prefer to solve puzzles offline? We offer free printable Sudoku puzzles in multiple difficulty levels - from Easy to Master. Get 7 puzzles per difficulty level, refreshed every week. Simply download and print high-quality PDF puzzles that you can solve anywhere, anytime. Perfect for travel, waiting rooms, or when you want to take a break from screens. All puzzles are completely free.
Browse by level: Easy · Medium · Hard · Expert · Master · Weekly Packs
If you want a gentler pace and easier-to-read grids, start with Sudoku for seniors, our large print Sudoku downloads, and this evidence guide on benefits of Sudoku for brain health.
Looking for an ad-free Sudoku app? Here's what makes ours different.