Mini Sudoku — free online logic game
A fresh 6×6 Sudoku with exactly one solution — easy, medium or hard.
About Mini Sudoku
Mini Sudoku is a compact 6×6 version of the classic number puzzle: fill every row, column and 2×3 box with the digits 1 to 6. Every puzzle is generated with a single unique solution, so it can always be solved by logic alone. Add pencil notes, check mistakes and chase a faster time each day.
Your best score, XP and achievements are saved in this browser only. Switch to Daily challenge in the game bar to play today’s shared puzzle.
How to play Mini Sudoku
- 1Tap a cell, then choose a digit from 1 to 6.
- 2Each digit must appear once in every row, column and 2×3 box.
- 3Use Notes mode to jot down possible digits.
- 4Conflicts are highlighted in red. Fill the whole grid correctly to win.
Controls: Tap a cell and a digit. Keyboard: arrow keys move, 1–6 enter digits, Backspace clears, N toggles notes.
Tips and strategy
- Start with the row, column or box that has the most digits already.
- If a digit can only go in one cell of a box, put it there.
- Use notes to track candidates before committing.
Mini Sudoku FAQ
Does every puzzle have a single solution?
Yes. Each puzzle is checked so there is exactly one valid completion, so guessing is never required.
How is the score calculated?
A base score for the difficulty plus a time bonus; hints and mistakes reduce it.
Is it the same puzzle each day?
In daily mode, yes — the daily puzzle is generated from the date for everyone.