Rules of game.

That it is necessary to make:
It is necessary to repeat the image which is on the right on the left half.

As it to make:
If on a cube the arrow is represented, it specifies a direction in which the cube if on it to click a mouse may move.
The cube may move in the event that at it freely only one direction, that is from other parties of it surround other cubes.
If for a way of movement of a cube there is other cube the moving cube at impact stops, and a cube on which impact was came, continues movement until will touch other cube. The ambassador this movement of cubes stops. Accordingly, if the cube hits in two in succession laying a cube on it movement of cubes comes to an end.