About

Sudoku Glow is a minimalistic and customizable Sudoku experience. It features six difficulty levels from Easy to Evil, and user-configurable options including themes, fonts, and gameplay settings. Sudoku Glow focuses on a clean, distraction-free interface that lets you focus on the puzzle itself, with intuitive keyboard navigation, optional notes mode, and real-time feedback on your progress.

Keyboard Shortcuts

1-9
Enter number
N
Toggle notes mode
Backspace/Delete
Erase cell
Ctrl+Z
Undo
Arrow keys
Navigate cells

Difficulty Levels

Easy~46 clues
Medium~36 clues
Hard~31 clues
Expert~27 clues
Master~24 clues
Evil~21 clues

Tips

Use notes mode to mark possible candidates in cells.

Look for cells where only one number can fit.

Check rows, columns, and boxes for missing numbers.

Use the hint button when stuck (if enabled).