Sudoku a Day — Je dagelijkse logica-training

Play 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 & Trucs (Begin Hier!)
• Beginner Tips & Simple Patterns
• Naked Singles
• Hidden Singles
• Naked Pairs
• X-Wing Technique
• XY-Wing Technique
• Swordfish Technique
• Trial & Error

View all strategies →

Now that you know a little more about Sudoku, play today's free daily puzzle 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.