How to Play Sudoku
Master the art of logic and deduction.
1The Goal
Fill the grid with numbers so that every row, every column, and every box contains all digits (1-9 for Classic, 1-6 for Mini) without repetition.
2The Rules
- Each number must appear exactly once in each row.
- Each number must appear exactly once in each column.
- Each number must appear exactly once in each 3x3 (or 3x2) box.
3Controls
- • Click / Tap a cell to select it.
- • Use the Number Pad or Keyboard (1-9) to fill.
- • Use Arrow Keys to navigate.
- • Note Mode allows you to jot down candidates.