The idea of this puzzle is to create a certain landscape by hand. 
There is sand inside the box. Above the box there are two objects: a camera and a projector.
The camera detects and analyzes changes of the terrain and the projector projects images of the landscape you create onto the sand.
Different colors mark different types of terrain: blue is for water, yellow and green - for plains, red - for mountains.
Players should create a certain landscape. They will be given a clue to what they are expected to do.
Beside the sandbox there is a scale, which shows the achieved progress.
Players should create a round lake. There should be no more water besides this lake in the box.
Players should create an island in the center of the lake. A green point will appear there. It will be considered as a center. 
Players should create 6 mountains at an equal distance from the center and each other. High mountains will be marked in red. 
Imagine, there are 6 rays from the center, which divide the map into 6 areas. There should be a mountain in each area. If there is a mountain in the area, the latter will be marked in green. 
The mountain should be high enough and should not be located at the junction of two areas.
When each of the 6 mountains is located in a separate area, the puzzle will be solved. 
All the tasks are completed. The scale shows 100% progress.
