Keyboard shortcuts

This is a list of the keyboard shortcuts you can use in Sudoku.

Starting and exiting

Print displayed puzzle	`Ctrl`+`P`
Undo	`Ctrl`+`Z`
Redo	`Ctrl`+`Shift`+`Z`
Add a number to the earmarks of a cell	`Ctrl`+`1-9`
Open Help	`F1`

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