🚀 How to Play
- Start a Game: Click "New [Difficulty] Game" dropdown to select difficulty
- Select a Cell: Click on any empty cell (highlighted in blue)
- Enter Numbers:
- Use keyboard keys 1-9 to enter numbers
- Press Delete or Backspace to clear a cell
- Get Help: Click "Hint" to fill the selected cell with the correct number
- Reset: Click "Reset" to return to the original puzzle state
🎯 Game Rules
- Each row must contain digits 1-9 with no repetition
- Each column must contain digits 1-9 with no repetition
- Each 3x3 box must contain digits 1-9 with no repetition
- Invalid moves will show a red shake animation