Why not moving some colored boxes? Move with them so you get rid of the last one. It won’t be so easy.
There are objects in the game area and all must go. The squares disappear when you match three of the same kind in a line. Use limited number of moves pushing the brain to its limits. There is a huge number of levels so enjoy it. The second mode is Arcade and it contains challenge of different kind. In time periods more lines arrive from the bottom so keep putting out the boxes.