The Rings

A fascinating puzzle called The Rings will allow you to blur your brains well. Here you will have a field of nine sectors. Each time you get a ring (or a combination of rings) of a certain color and size. Place them on the field so that rings of the same color stand diagonally, vertically or horizontally (by analogy with the game of the TIC-TAC-TOE). The game will continue as long as free moves remain.