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About game
- 3 difficulty levels: Easy, Medium, and Hard
- Tutorial mode with step-by-step instructions on the rules and basic techniques
- Number highlighting system: tap a number to see all its positions on the board
- Adaptive interface: easy to play on phones, tablets, and PCs
- Coin and reward system for completing games
- Optional hints for watching ads: correct mistakes or reveal a random number.
How to play
1. Select a difficulty level in the main menu.
2. Click on an empty cell on the 9x9 grid.
3. In the bottom panel that appears, select a number from 1 to 9 or click "ERASE."
4. Sudoku rules: numbers cannot be repeated in the same row, column, or 3x3 grid.
5. Use the highlighter: click on an existing number to highlight all its copies on the grid in blue.
6. For beginners, a "TUTORIAL" mode is available with an explanation of basic logic techniques. 7. Fill in the entire grid correctly to receive a reward and move on to the next game.