This is 15 puzzle or number puzzle game.

The goal of the game is to order square pieces by numbers from the left to the right and from the top to the bottom ( 1,2,3 .. 15).

So just slide square pieces horizontally or vertically using an empty space .

This is an exelant exersize for your mind.

Features:

* Additional variotions of the game as easer as harder with game field sizes 3*3, 4*4, 5*5, 6*6, 7*7;
* Nice graphics and smooth animation;
* Move several pieces by one sliding;
* Set appearance of pieces: select a font and shape of pieces;
* Unlimited undo move;
* Quick restart;
* Portrait and landscape orientations are supported;
* All screen sizes and HD, 4K displays are supported.

So this game is slide puzzle, fifteen puzzle, number puzzle, 15 puzzle.