There is only one very simple rule: Fill in the grid so that every column, every row and each of the nine 3 x 3 boxes contains all digits from 1 through 9. Sounds easy? Try it out!
The aim of Sudoku Companion is to make solving Sudoku puzzles more convenient. It is very Mac-like and it has all necessary and
- No success message when the validation is off, all cells are filled in but the solution is wrong.
- Other minor changes and fixes.