How to Play

Game Rules

• Grid: A standard 9×9 Sudoku board, visually divided into nine 3×3 blocks. The board follows valid Sudoku rules, where each row, column, and 3x3 block contains unique numbers 1-9 without repetition.
• Editable Area: The bottom 3x3 grid (rows 7-9) contains some pre-filled numbers like a traditional Sudoku puzzle. Only the empty cells in the bottom grid are editable. All other cells are locked.
• Progressive Difficulty: The game starts easy with many filled cells and gradually becomes harder as you progress:
  • Initially, most cells are filled, making the game very easy to understand
  • After each successful grid completion, fewer cells will be filled, increasing the challenge
  • The difficulty increases up to a maximum level, ensuring the game remains challenging
• Points System:
  • Start with 300 points
  • Lose 50 points for each invalid number placement
  • Gain 100 points for completing the bottom 3x3 grid
  • Game over when points reach zero
• Notes Feature:
  • Toggle between normal mode and notes mode
  • In notes mode, you can add small number hints to empty cells
  • Notes don't affect validation and are just for your reference
  • Notes are automatically cleared when you place a number in a cell

How to Play

1. Click on any empty cell in the bottom 3x3 grid (rows 7-9) to select it. Pre-filled numbers cannot be modified.
2. Click a number on the number pad to fill the selected cell.
3. The game will immediately validate your placement:
   • If valid, the number will be placed in the cell
   • If invalid, you'll lose 50 points
4. To use notes:
   • Click the "Notes Mode" button to toggle between normal mode and notes mode
   • When in notes mode, clicking a number will add it as a small note in the selected cell
   • Notes are helpful for keeping track of possible numbers for a cell
   • You can toggle notes on and off by clicking the same number again in notes mode
5. When all cells in the bottom 3x3 grid are filled correctly, you'll earn 100 points, and the grid will clear with an animation. All rows will shift down by three, and three new rows will appear at the top. The game will also increase in difficulty, with fewer pre-filled cells in subsequent levels.
6. Continue playing to earn as many points as possible.
7. The game ends when your points reach zero.

Tips & Strategies

• Use the notes feature to keep track of possible numbers for each cell.
• Look for cells with few possibilities first, as they're easier to solve.
• Check rows, columns, and blocks to eliminate possibilities.
• Be careful with your placements to avoid losing points.
• Focus on completing one section at a time.