Mini Sudoku Online
Play a quick 6×6 Mini Sudoku with hints, undo and unlimited fresh puzzles.
How to play Mini Sudoku Online
- Fill every empty cell with a number from 1 to 6.
- Each row, column and 2×3 box must contain every number exactly once.
- Select a cell, choose a number, and use Hint or Undo whenever you need it.
About this version
Mini Sudoku keeps the logic of a classic 9×9 Sudoku in a faster 6×6 grid. A complete round usually fits into a short break.
Every puzzle is generated with one valid solution. New Puzzle creates a different board without reloading the page.
Already have a puzzle from somewhere else? Enter it in the free 6×6 Sudoku Solver.
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Learn more about Mini Sudoku Online
6×6 Sudoku Rules: How Mini Sudoku Works
Learn the row, column and 2×3 box rules, then use them in a playable Mini Sudoku.
Sep 8, 2026·4 min read6×6 Sudoku Tricks for Faster Mini Puzzles
Use singles, cross-check boxes and a simple scan order to solve Mini Sudoku with fewer guesses.
Sep 8, 2026·5 min readFrequently asked questions
Is Mini Sudoku Online free?
Yes. The complete game is free to play in this browser with no account or download.
Does it work on a phone?
Yes. The layout adapts to smaller screens and includes touch controls.
Is my progress uploaded?
No. Scores, streaks and saved progress stay in local browser storage on this device.