The first 10 Prolog Programming Contests took place in Ithaca (1994), Portland (1995), Bonn (1996), Leuven (1997), Manchester (1998), Las Cruces (1999), Paphos (2001), Copenhagen (2002), Mumbay (2003) and Saint-Malo (2004).

The contest organisers have written this book, containing the (slightly reworked) questions and an answer (in Prolog of course) for each question.