SprigFern has been written using the GTK# tool-kit, and should run on any operating system for which the Mono run-time environment is available. It has been tested using Mono for Slackware & Ubuntu, as well as .NET v4 under Windows7. See the running page for details on getting required run-time libraries.
The name SprigFern comes from the name of the Wellington pub where I first came across the game and started to think about an algorithm for solving them, and since used as a place-holder because I had forgotten the game's actual name. By the time I got back online and found out the puzzle's actual name, I decided to stick with this place-holder name.