There are people who say that Sudoku Original could drive you to the brink of madness. Looking at the different playing fields might actually give off this impression. Solving all 75 puzzles that you can select from in Sudoku Original should be no problem for you. All 75 playing fields are divided into three equal sections. The sections differ from each other only in their degree of difficulty. To the right of the playing field, you are shown the number of levels as well as the time you have used up thus far in the form of a timer for a better orientation. Directly below, you can, for example, reset the gaming by pressing the reset button or get up to three hints using the hint button. You should only use these hints in a tactically sound manner. The playing field is entirely made up of a successful graphics so you can see all the important details at a single glance. In terms of the game controls, you are presented with a choice: Use the arrow keys to navigate the playing field to get to the desired field. Go on to enter the desired number by pressing it on your keyboard. If you made a mistake, you can use the 0 key to clear the respective field. Sudoku Original can be operated in an equally comfortable manner using your mouse. What type of control is best suited for you is left completely up to your own preferences. In Sudoku Original, you will find no time limit. So give yourself plenty of time when trying to solve these puzzles and do not enter a state of panic should you find that you have entered a wrong number. Sudoku is there to relax you and train your logic skills! If you notice that your attention starts to wander, you can always just take a break.