via http://pdroms.de/

Three Phase Labyrinth (3PLabyrinth) by Mincemeat TEAM is a game based on solving labyrinth, to maintain mental alertness.
The goal is to connect 3 outputs via 3 different ways, and these can not be crossed. With the difficulty that we never have a full view of the labyrinth, but we can only go exploring it in sections, and we will have to rotate the sections to be drawing the roads.

http://mincemeatteam.eshost.es/index.htm