Here's a collection of links about the puzzle, including various methods of solution and other self-referential puzzles (the author's link in the article is bro

Here's a collection of links about the puzzle, including various methods of solution and other self-referential puzzles (the author's link in the article is broken): http://faculty.uml.edu/jpropp/srat.html http://faculty.uml.edu/jpropp/srat.html