Game options:

• Reveal numbers
• New game
• Show hint

• Beginner
• Moderate
• Hard
• Expert

• Goal of the game
• 1. No duplicates of the numbers 1-9 horizontally.
• 2. No duplicates of the numbers 1-9 vertically
• 3. No duplicates of the numbers 1-9 in the 3x3 cell groups

• Click on a cell and use your keyboard to type in the numbers