Printable A4 Sudoku May 21, 2022June 3, 2022· Printable Sudoku by Kari D. Dunbar Printable A4 Sudoku Printable A4 Sudoku – There are many number of ways that you can use Printable Sudoku puzzles. One way to make them more appealing is to customize them with QR codes. You can apply a QR code to any puzzle that is…