Number keys: Write a note or set the sudoku number
Backspace: Delete a number
Escape: Pause/unpause the game
H: Hint
N: Enter/exit note mode
CTRL + Z: Undo
CTRL + Y: Redo
Settings
Show auto generated notes
Highlight wrong entries
Highlight conflicts
Show circle menu when a cell is clicked (desktop only)
Show occurrences of numbers in number buttons
About
This sudoku app is and will be free of charge, free of ads and free of tracking. Its source code is available at Github. Created by Tom Nick.If you find a bug or experience any issues, please report it on Github.