Press green flag to start. Press SPACE for new puzzle.
There are four engines and four stations.
With every puzzle, a different engine starts from home The Engine has to reach proper station matching its number..
There are three gates, each with two directions. Click on them to change the course of the engine.
The level of difficulty can be changed in five steps. Ech highr level increases the spped of the engine.
Inspiration from Lumosity -