This script is a great help in solving a Sudoku puzzle. Use the arrow keys to navigate and enter the initial numbers in their positions, then confirm them by pressing EXE. You can delete an incorrect number by pressing ⌫. Pressing the Ans key updates the list of possible numbers for each cell. Shift+number key insert/remove a number in the list of possible numbers in a cell. Gradually enter your numbers using logic and following the rules of Sudoku. Press OK when you’re finished. You’ll see the initial grid of numbers and your solution displayed side by side.