Articles

The following articles have been contributed by puzzle enthusiasts. If you have an article you would like to make available, please send information.

Title Author(s)
O'Beirne's Cube and Its Origins HTML PDF Brian E. Butler
Computer Analysis of the UFO Puzzle
Supporting Details
HTML
HTML
PDF
PDF
John Rausch

Some articles are available as standard HTML pages, some are available as Portable Document Files and some are in both formats. If you are considering saving or printing the article, the PDF file preserves the original paper format and appearance and is a much better choice. You will need Acrobat Reader to view and print the PDF files.