Brain Test 4 Answers Worry must turn on all of the light bulbs
Hey folks! Feeling stuck on Level 210 and scratching your head over another tricky puzzle? No worries, we've got your back. Check out the answers for level 210 in Brain Test 4, this specific puzzle is named "Worry must turn on all of the light bulbs" in our game. If you're still unsure how to solve it, see below our level 210 walkthrough for a detailed solution.

Hint 1
You can never turn them all on with the 4th one.
Hint 2
Tap on the 4th one's cable to break it.
If your level 210 puzzle in the game is different, just navigate to the Brain Test 4 walkthrough list and select the solution you need.