難易度いろいろ　変則スライドパズル

Slide puzzle represented by 15 puzzles.
To such a puzzle that anyone knows, with the limitation of "block not to move"
We prepared a stage with various difficulty levels.
In case
[how to play]
Please tap the top, bottom, left, and right of the blank and move the block so that it lined up in order.
You can also move more than one block at a time.
In case
In the ranking of Google Play games, you can check the number of clear stages of other players.