Object: Create continuous loops, each containing exactly one station and each containing at least one given (red) segment. Use all red segments.
 
First click anywhere on the center board. Several sections and a few stations of a subway system will appear.
 
Build one big loop by adding bends, double bends, straights and crossings.
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.
 
The given red sections and the stations cannot be deleted or moved. 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
- each station is in a different loop and
- each loop contains at least one given section and
- all given (red) sections are used.
 
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.
 
If you find the game too easy, try to incorporate two given sections into each loop.
 
 
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.