Flip switches until the lights match the pattern.
1. Green dim bulb = turn it on
Each cell tells you what it needs to be at the end.
Green dim bulb — should be ON, not yet
Grey bulb — should stay OFF
Red bulb — turned on by mistake
Click a switch to select it
Hover (or long-press) to preview what it flips
Each switch flips its own set of lights when you commit.
1Pick the switches you think will work
2Press Commit to flip them all at once
3Solve it before your attempts run out
Timer starts on your first tap.