Sudoku Daily is an entertaining puzzle game that comes in handy if you're on a break from work. The app lets you choose from multiple difficulty levels, comes with a built-in help manual, offers you plenty of useful hints, and allows you to save your gameplay progress whenever you like.
You should check the built-in help guide if you're new to this type of games. All rules are nicely explained so that any user can easily comprehend the way this game should be played. You also have access to several tutorials and plenty of hints.
After you select the preferred difficulty level, the application displays a new window showing the game board, a time counter on the bottom side of the screen, and buttons from 1 to 9. You can use the Hint option whenever you like and save your gameplay progress.
Another important advantage is the fact that you can undo or redo as many moves as you need. You can also restart the level or clear all of the numbers you entered.
This new version of the program now requires 10.9 or later OS X edition and has various bugs fixed.
All in all, I think it's worth installing Sudoku Daily on your Mac if you're a fan of solving number puzzles on your spare time. It provides you with plenty of useful options, helps you learn how to complete puzzles, and is free.