Enter the code for level 3 above or at this link. Three demonstration videos are provided below ([1], [2], [3]). Good luck!
Reveal the clues below only as a last resort.
There is nine buttons instead of two. As for previous level, one button can mean either yellow or grey.
You decide the buttons' color. Feel your power!
The meaning of the buttons is not pre-defined. The user gets to decide it.