Slide Puzzle. comes from NikSan Tech. The object is to slide the numbers to their correct spot.

Green tiles are good. Red tiles: need to be shunted around.
There are 500 levels, which is way too many.  I've done about 75 levels.

If you're the type of puzzler who is looking to solve while making the fewest moves, this game is for you.
Relaxing game. If you want more of a challenge, look for Subway Shuffle.

https://itunes.apple.com/us/app/slide-puzzle/id1410193506"mt=8

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