Simple and interesting fun, like childhood games, DD knots is such a puzzle game can bring you the different experience. You need to click those hexagons to exchange their position and make sure that the line in it can connect to each other. This game really needs your brain and patient. Have fun! This is an online HTML5 game presented by rorgames.com, it's can be played in any Modern Browsers such as safari and chrome. You can play the game on mobile device.