How to play Sudoku
Sudoku is a classic 9×9 number-placement puzzle with multiple difficulty levels and a timer. Fill every row, column and three-by-three box without repeating a number. The original puzzle state is preserved and ZGame adds score, account progress and leaderboard support.
Select an empty cell and choose a number from 1 to 9. Conflicts are highlighted as you play. Complete the full valid grid to finish the run. Save Progress stores the exact puzzle and elapsed time.
Controls
- Click or tap an empty cell, then choose a number
- X removes the selected entry
- Use Pause/Resume from either the puzzle or ZGame toolbar
Tips
- Start with rows or boxes that already contain many numbers.
- Use elimination instead of guessing whenever possible.
- Recheck highlighted conflicts before filling nearby cells.
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