Clear the Table

Clear the Table is a retro puzzle game where you have to switch off the colors on the grid.
When you press a button, that button and the 4 adjacent ones advance state:
- In Easy mode the progression is: Off -> Blue -> Off -> ...
- In Medium mode: Off -> Blue -> Green -> Off -> ...
- In Difficult mode: Off -> Blue -> Green -> Red -> Off -> ...
- In Challenge mode: Off -> Blue -> Green -> Red -> Cyan -> Magenta -> Yellow -> Off -> ...
When you switch off all the buttons, you advance level

P.S. To restart a level, you have to press the level number