StivStiv 162k1212 gold badges588588 silver badges875875 bronze badges $endgroup$ 2 $begingroup$ Dang that is rough. I'm not accustomed to imagining like that. Many thanks for that method. $endgroup$ tazboyTo resolve medium Sudoku puzzles, all you'll need is actually a pencil and eraser (or a electronic Sudoku app or website). It will also be handy