Preparing your arena…
Online Sudoku — Free Puzzles from Easy to Very Hard
Fill the grid, sharpen your logic and climb the leaderboard. Sudoku Arena runs in your browser on phones and computers, with nothing to install.
About the game
Sudoku Arena is Pouyam's free online sudoku. The goal is the classic one: fill every row, column and 3 × 3 box with the digits 1 to 9 without repeating a digit. Tap a cell, then a number; matching digits and related cells light up so you can focus on the next move.
The puzzles form one endless journey. Each verified ranked win takes you to the next stage, with fewer given digits and more room for logic, from gentle starts to very hard grids. The difficulty curve peaks at stage 20, and fresh unique puzzles keep coming after that. Practice mode has no timer and no points, so you can think as long as you like.
Ranked games have a server timer and earn real Pouyam points: speed adds a bonus, while mistakes and hints lower the reward. Verified ranked points count ×10 on the main leaderboard, and a daily limit of 90,000 points applies. Sign in with a free Pouyam account to save your progress and appear on the board; it works on iPhone, Android and computers.
How to play
- Sign in, choose Ranked or Practice and enter the arena.
- Pick an empty cell and place a digit from 1 to 9 that does not already appear in its row, column or 3 × 3 box.
- Use Notes to pencil in candidates, and the logic desk when you need a nudge. Each game has three hints, but in ranked play every hint lowers the reward.
- Fill the whole grid correctly to win. In ranked games, finish before the timer runs out.
Frequently asked questions
Is Sudoku Arena free?
Yes, every puzzle is free. Practice has no timer and no points, and ranked games earn Pouyam points. You need a free Pouyam account to save your progress.
How hard are the puzzles?
They start gently and get harder stage by stage: each ranked win removes given digits until the curve reaches its hardest setting at stage 20. After that you keep getting fresh, unique puzzles at that level.
What are the rules of sudoku?
Every row, every column and every 3 × 3 box must contain each digit from 1 to 9 exactly once. A proper sudoku has only one solution, so every digit can be found by logic, without guessing.
Can I play sudoku on my phone?
Yes. Sudoku Arena runs in the browser on iPhone and Android with nothing to download. On a computer you can also use the keyboard: arrows to move, N for notes, Delete to erase and Ctrl+Z to undo.
