Wan William recently contacted me about his company's new puzzle app game Snakes - Move Snakes, Fill Board. The object is to fill the board with snakes of different sizes.  The first 40 levels are very easy.  5 minutes was all I needed, and that includes watching a couple of ads.
  There are 400 levels split into 10 worlds.  Worlds 9 & 10 are where things get interesting.  Why" Because that's where the snakes can overlap. That's where the game, to me, is more of a Ribbon Puzzle.
Yes, I did solve all 400 levels. Some of them are hard, but not nearly as hard as some of the other Ribbon Puzzles listed below.
https://itunes.apple.com/us/app/id1165326929

Other Ribbon PuzzlesRibbons Puzzle GameThe WeaverRibbon PuzzleTAPES - similar to Colorbind. ExcellentWoven - easyColorbind - the first of its kind. Genius
Twisted Lines - very hard

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