Slither Link is a well-known logic puzzle game. It's also called as Fences, Takegaki, Loop the Loop, Loopy, Ouroboros, Suriza and Dotty Dilemma.
Slitherlink Paper App Screenshots
Even the beginner level puzzles are entirely to hard, & I’m very good @ slitherlink. I play expert levels on other apps! Also, needs to ability to zoom in closer to puzzles. I expected more from a paid app! Disappointed