SUDOKU
Classic logic puzzle with notes, hints, and unique-solution generation.
TIME00:00
MISTAKES0 / 3
NOTESOFF
EMPTY0
Select a cell and enter a number.
PUZZLE SOLVED! 🎉
Time: 00:00
Mistakes: 0 · Hints: 0
How to Play
Fill the grid so every row, column, and 3×3 box contains the digits 1–9 exactly once.
- Select a cell, then choose a number from the keypad.
- Notes mode stores pencil marks instead of final answers.
- Undo / Redo works for numbers, notes, erase actions, and hints.
- Hint fills the selected empty cell, or another empty cell if none is selected.
- The generator removes values only when the puzzle still has exactly one solution.
- Rows, columns, 3×3 boxes, and matching numbers are highlighted for easier scanning.