🧩 Sudoku

Timer

00:00

Difficulty

Medium

Mistakes

0

Highlight Conflicts

Notes

Tip: Use keyboard 1–9, Backspace/Delete to erase, arrows to move. Press N to toggle Notes.

How to Play

Fill each row, column, and 3×3 box with digits 1–9 without repeats.
Use Notes to pencil in candidates.
Hint fills one correct cell.
Check marks mistakes (doesn’t change the board).
Solve completes the puzzle.
Game auto‑saves to your browser; come back anytime.