The letters in some text are nodes in a graph, and each pair of letters which occurs consecutively in that text is connected by an edge (directed or undirected). See also Namystics.
Puzzles
MIT Mystery Hunt 2004 Too Precious For Words
MIT Mystery Hunt 2005 Bouncy Bouncy
MIT Mystery Hunt 2008 At Sea
MIT Mystery Hunt 2009 Island Warfare
MIT Mystery Hunt 2010 Computer Games
MIT Mystery Hunt 2013 Vertexillonomy (colors and land borders, not letters)
Categories