Staring at a blank screen during your coffee break usually leads to mindless scrolling, but you can sharpen your mind instead. Sudoku Classic & Killer turns those wasted minutes into a satisfying mental workout. You start by selecting between the traditional grid layout or the intense cage-based challenges. Placing numbers requires careful deduction to ensure every row, column, and block contains digits from one to nine without repeats. Killer sudoku adds a layer of complexity where you must hit specific target sums within marked areas. Choosing your preferred difficulty level helps you stay within your comfort zone or push your limits. Daily challenges keep things fresh by giving you a new puzzle to conquer every morning. You can use pencil marks to track possibilities or grab a hint when the logic hits a wall. Jump into Sudoku Classic & Killer right in your browser without any annoying downloads.
Choose a mode: Classic or Killer. Tap an empty cell and select a digit from 1 to 9. Each row, column and 3×3 box must contain unique digits. In Killer mode, the digits in each cage must add up to the displayed sum. Use the notes button to pencil in possible candidates. The hint button reveals the correct digit. You have 3 lives — three mistakes and the game is over.
Logic enthusiasts and number crunchers seeking a mental edge will find their groove here. Casual players who enjoy a quick brain training session during commutes or breaks will appreciate the straightforward interface. If you value pattern recognition and simple arithmetic puzzles, this platform provides the exact stimulation you need.
Fill the grid so every row, column, and 3x3 square contains digits one through nine once. In killer levels, you must also ensure the numbers in each cage sum up to the target total.