Complete guide to playing Sudoku — rules, controls, tips, and strategies.
Sudoku is a logic-based number placement puzzle that became a worldwide phenomenon in 2004–2005. Fill a 9×9 grid with digits 1–9 so that each row, column, and 3×3 box contains all digits exactly once.
Fill the 9×9 grid so that every row, every column, and every 3×3 sub-grid contains the digits 1 through 9 without repetition.
Click a cell to select it, then type a number from 1 to 9. Each row, column, and 3×3 box must contain each digit exactly once. Use Notes to pencil in candidates, and Hint if you get stuck.
This game features achievements — play and try to unlock them all!
View AchievementsPlaying Sudoku on Akousa means instant access in your browser — no downloads, no plugins, no signup. Track your progress with achievements, compete on leaderboards, and enjoy a smooth experience on any device.
When you play Sudoku on Akousa, you get access to a full suite of gaming features built into the platform.
Want to add Sudoku to your website? Use our free embed widget to integrate the game with a simple iframe — customize language and theme via URL parameters.
Get Embed CodeSlide tiles to combine them and reach the 2048 tile. Can you go even higher?
Classic Klondike Solitaire. Move all cards to the four foundation piles sorted by suit from Ace to King.
Classic FreeCell solitaire. Use four free cells to maneuver cards and build all four suit foundations from Ace to King.
Drop wooden blocks onto a 9×9 grid and fill a whole row, column, or 3×3 box to clear it and rack up combo bonuses!
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