Slitherlink also known as Dotty Dilemma is a logic puzzle published by Nikoli. As of 2005, 17 books consisting entirely of Slitherlink puzzles have been published by Nikoli.Slitherlink is played on a rectangular lattice of dots. Some of the squares formed by the dots have numbers inside them. The objective is to connect horizontally and vertically adjacent dots so that the lines form a single loop with no loose ends. In addition, the number inside a square represents how many of its four sides ...