Sudoku Online
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What is Sudoku?
Sudoku is a classic logic puzzle that’s won hearts all over the world thanks to its simple rules and addictive gameplay. The goal is to fill a 9x9 grid with digits from 1 to 9 so that each row, column, and 3x3 box contains every number exactly once. No math skills needed — just logic, a sharp eye, and a bit of patience.

How to Play Sudoku
The rules are easy, but the challenge? Totally addictive! Here’s how it works:
- Each puzzle starts with some numbers already filled in.
- Your job is to complete the grid without repeating any numbers in a row, column, or 3x3 block.
- No guessing required — every puzzle we offer has a single, logical solution!
Explore Our Features
This isn’t just another Sudoku site — it’s a thoughtfully designed tool that combines functionality, elegance, and user comfort.
Beautiful, intuitive interface
Clean and distraction-free — designed to feel like solving Sudoku on paper. Whether you’re new or experienced, it’s smooth, simple, and satisfying.
Choose your game mode
Pick your difficulty level and fine-tune the experience with helpers. Turn on error checks, highlight numbers, or go full paper mode by disabling all aids.
Keyboard shortcuts
Speed fans, rejoice! Play entirely with your keyboard and solve puzzles lightning-fast without lifting your hands.
Mobile-friendly
Sudoku on the go! The site works great on phones and tablets — perfect for your commute, bedtime, or while waiting in line.
Multiple language options
We support many languages including English, Polish, German, Spanish, French, Italian, and more. You’ll feel right at home.
Printable puzzles
Love the classic feel? Print puzzles and play the old-school way — pencil and all. Great for travel, family time, or screen-free moments.
More from Us
We’re not just Sudoku fans — we’re full-on puzzle addicts! Explore our other games and dive into more fun, clever, and sometimes delightfully tricky challenges.