📖 How to Play Sudoku
Objective: Fill the 9×9 grid with numbers 1-9 so that each row, column, and 3×3 box contains all digits from 1 to 9.
How to Play:
- Click on an empty cell to select it
- Click a number from the number pad (1-9) to fill the cell
- Click "Erase" to clear a cell
- Use keyboard numbers 1-9 to enter values quickly
- Press Delete or Backspace to erase a cell
Rules:
- Each row must contain the numbers 1-9 without repetition
- Each column must contain the numbers 1-9 without repetition
- Each 3×3 box must contain the numbers 1-9 without repetition
- Given numbers (in bold) cannot be changed
Features:
- Hint: Reveals one correct number (3 hints available)
- Check: Validates your current solution
- Timer: Track how long it takes to solve
- Mistakes: Shows how many errors you've made