Rules of Pipelink
The pipe must pass through every cell in the grid.
It must use all the sections that are provided.
You cannot add to given cells.
The pipe may cross itself, i.e. create an intersection of perpendicular segments, but it cannot turn at an intersection.
Pipelink is a spatial awareness puzzle from Japan. There are no numbers, there’s no complex mathematics, and no fancy formulas. The objective is very simple: to link all the cells in the grid with a single, continuous pipeline.