Filling Lines is a New HTML5 Puzzle Game. In this connection game, you should connect each shape to its similar, in order to fill the puzzle in the correct order. If you do not connect the shapes in the correct order, you will not win the level. puzzle,HTML5 game,brain training,connection game,spatial reasoning,logic puzzle,concentration,memory,challenge,addictive,online game,free puzzle game,connect the dots,pattern matching,cognitive skills