These puzzle are specific.
You have to select two tiles and see what's happen.
Beautiful puzzle has many levels of difficulty.
It's a good way not to get bored!
All photos are licensed under the Creative Commons CC0.
New puzzle
![[EASY] 15 Puzzle Advanced Method: The Fringe Method -- Concise Tutorial screenshot 2](https://i.ytimg.com/vi/65PKeCNPZtM/mqdefault.jpg)
9Apps 4.9
