The goal of Sudoku is to fill in a 9×9 grid with digits so that each column, row, and 3×3 section contain the numbers 1 through 9 without repetition.
Rules:
- Fill in the grid so that every row, column, and 3×3 box contains the digits 1-9
- Don't guess - use logic to solve the puzzle
- Each puzzle has only one solution
Controls:
- Click a cell to select it
- Click a number to place it in the selected cell
- Eraser - removes a number from the selected cell
- Hint - reveals the correct number for the selected cell
- Undo - reverses your last move
Difficulty Levels:
- Easy - Good for beginners
- Medium - More challenging
- Hard - For experienced players
- Expert - The ultimate challenge