Solve a free 6×6 Mini Sudoku with 2×3 boxes, notes, undo and explained hints. Play the daily puzzle or a fresh untimed practice board.
Daily puzzles change at midnight UTC. Practice creates a fresh set.
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Results stay in this browser. No account needed.
Fill each row, column and outlined 2×3 box with digits 1–6 exactly once. Given digits stay fixed.
Select a square, then a keypad digit. Keyboard digits enter values; arrow keys move and Delete clears.
Turn Notes on, or press N, to keep your own candidates. Turn Notes off to place a final digit.
Check entries highlights mistakes. Hint fills one deduced square and explains why. Complete the grid to save your result.
Mini Sudoku has six rows and six columns divided into six 2×3 boxes. Every generated board has exactly one solution and can be completed using single-candidate or single-position deductions. There is no timer. Daily values, notes and used hints resume on this device; Practice creates another board without replacing that draft.
A solved board saves requested hints; fewer is better and 0 means no hints were requested. Checking, notes and undo are free; undoing a hinted entry does not remove its hint. Different puzzles are not equal-difficulty comparisons. Completed daily drafts do not save another result on refresh.
More about your scores →A row containing 1, 2, 3, 4 and 6 needs 5 in its only empty square. Before placing it, confirm that the same column and outlined 2×3 box allow 5 too. Given digits never change.
For an empty square, exclude digits already in its row, column and box. If only one remains, you can place it. Notes help keep track; they are manual and do not update themselves.
Sometimes several digits fit each empty square, but a particular digit has only one possible position in a row, column or box. Look at the whole group rather than only one square.
Begin with a row, column or box that already contains several different digits.
Look for a digit with only one possible square in a box, even when that square has several candidates.
Notes are manual reminders. Update them when a placed digit changes the possibilities.
Results describe this game session. They are not IQ scores, diagnoses or clinical assessments.
Use 1–6 instead of 1–9. The six boxes are 2 rows by 3 columns; rows, columns and boxes still contain each digit exactly once.
No. Generated boards are checked for a unique solution and a full sequence of logical deductions.
Yes. Select Notes, then tap keypad digits to add or remove candidates in the selected square.
No. It highlights incorrect entries. Hint fills one logically determined square and adds one to hints used.
Yes. Undo restores the last value or note edit during the current visit. Undo history is not restored after a refresh; Daily values, notes and hints are.
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