fun Brain Teaser Puzzle game for kids and adults (developpe your IQ brain score).

The 15 tile puzzle games (also called Gem Puzzle,Gravity Maze, JIGSAW 15 Number Puzzle, Boss Puzzle, Game of Fifteen, Mystic Square,game of 15, and many others) is a sliding puzzle that consists of a frame of numbered square tiles in random order with one tile missing.

The puzzle also avaible in other sizes, particularly the smaller 8-puzzle.
8-puzzle: 3×3 tiles
15-puzzle: 4×4 tiles
24-puzzle: 5×5 tiles

also you're free to choose any picture you want to have fun in taking the brain challenge that is good for your IQ brain and mind for you
The object of the puzzle is to place the tiles in order (see diagram) by making sliding moves that use the empty space.

it's the best classic fifteen puzzle,number and picture puzzlles, the mystic square logic puzzles game formed by puzzle pieces that yu have to drage and swipe to the empty place.

give it a try, and be the boss puzzle,it's the best puzzles brain teasers mind games for adults and all age,you will find free brain games brain teasers logic tests and puzzles to exercise your mind, you will find it cool.

and it's a number puzzle tiles game for toddlers and adults free.
it's the best kids mind development games.