Use APKPure App
Get 15 puzzle solver old version APK for Android
You can learn visually how to complete or solve 15 puzzle.
A teacher will tell you how to move the next piece.
Just follow a teacher.
Then, you will easily understand how to solve 15 puzzle.
This app is not just a 15 puzzule.
This is an app to know how to conquer 15 puzzle, which is sometimes called slide puzzle.
It's fun.