Object: Create one continuous subway loop with the stations in sequential order.
 
You are the civil engineer in a big city. Your task is to build one continuous subway loop, thereby incorporating several existing tunnel sections and (!) several given places for subway stations.
 
First click anywhere on the board. Several sections of a subway system will appear, coloured red.
 
Build one big loop by adding bends, double bends, straights and crossings. Incorporate the stations in sequential order.
 
To place a section, click a position several times. The system will cycle you through all available shapes of track sections.
One of the choices offered will be an empty position. This way you can delete a section again.
The given red sections and the stations cannot be deleted. But you can click a red straight section to turn it into a cross intersection, for example.
 
Click anywhere at the border to check your design. You win if all sections are part of one big loop and if all stations, are situated in sequential order along the track, otherwise you lose.
 
The variants have a different number of given sections and/or a different number of given stations and/or a smaller playing field. Not all random setups may be solvable.
 
 
Background design: Fractal Mo99121j by Morgan Owens and Karl Scherer.
 
More freeware as well as real puzzles and games at my homepage http://karl.kiwi.gen.nz.