A laser-cut plexiglass puzzle featuring 7 small circular pieces that slide along an intricate track. The track itself slides left and right, allowing for the circular pieces to pass through the small gap in the center barricade. The goal of this unique puzzle is to get each of the seven circular pieces from one side of the barricade to the other, such that they match with the order dictated by the colored rectangular stickers. The puzzle can be solved back and forth, or “mixed” and solved to a side of the user’s picking.