Stars are used to assess your ability to solve the grids accurately. Each level gives you the chance to earn up to 3 stars, depending on the number of mistakes you make:

• 3 stars are awarded if you make up to 2 mistakes, indicating an excellent performance.
• 2 stars if you make between 3 and 6 mistakes, showing good level management.
• 1 star is given for 7 mistakes or more, to congratulate you for completing the grid.

You can also watch an ad at the end of each level to obtain the missing stars needed to achieve a perfect score of 3 stars.

Stars allow you to fill the gauges to earn badges. Collect lots of them to unlock the most prestigious badges!