MatchStickGraph 6.0 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The following version: 6.0 is the most frequently downloaded one by the program users. The actual developer of the free software is peterk. We recommend checking the downloaded files with any free antivirus. MatchStickGraph lies within Education Tools, more precisely Computer Skills.
From the developer:
The minimal 1-regular matchstick graph is a single graph edge, and the minimal 2-regular graph is an equilateral triangle. The minimal known 4-regular matchstick graph is known as the Harborth graph (Hartsfield and Ringel 1994; Timm) but has not been proven optimal. These are illustrated above and summarized in the table below. The matchstick graphs are implemented in Mathematica as GraphData["Matchstick", n].
You may want to check out more software, such as Learn Visual Web Developer 2005 Express EditionC#Lesson 2, CertKiller Q and A for Microsoft 70-272 or The Racing System, which might be similar to MatchStickGraph.