Welcome to Level 2 of the Annex in 100 Floors. If you have made it through the Main Tower in 100 Floors then you’ve probably seen something similar to this stage before, that being said means it’s not something you are going to struggle with or spend time on. In fact, some players can spend hours aligning different lines and get no where.
It’s hard to explain to solution but let us try! This solution for Level 2 of the Annex is quite easy actually. Look for the dot at the top right of the screen then tap it slide down into the middle then slide left. Press the switch on the right and the door will slide open for you to get your hands on Level 3 of this amazing Annex stage in 100 Floors!
Great explanation below by contributor Franc! Check it out in the comments.