Before you build a building or design any of the objects or mechanisms, you need a plan, drawing, development. In Under Construction, you will see a tile building under construction. It began to be built a long time ago, spent a lot of money, and then it turned out that the need for it disappeared and now the incomplete construction needs to be dismantled. But to do this is not easy, it cannot be exploded or simply smashed. It consists of valuable tiles that need to be preserved, and for this they need to be carefully removed, finding two identical along the edges.