Currently there is only one easy puzzle. Click the numbers in the boxes to change them. When you are ready hit submit. The number on the side views the pieces in front of it. Imagine the numbers as heights of buildings. 1 is the shortest and 4 is the tallest. Say the you have the number 2, it can only be able to see 2 towers. Ex: in front of it is 1432, it can only see the 1 and the 4 as the 4 is blocking all the towers behind it.
Because I had extra time on my hands. Feel free to remix in order to add more levels.