One Line Drawing 2019 One Line Drawing 2019 is a daily puzzle game that will invigorate the brain. Easy rule, bring huge brain challenge. Just try to use one tap to connect all lines on the screen. In this full of fun and ingenuity game, you will find lots of interesting puzzle and daily challenge. When you are in free time or in small break, such as taking bus/subway, you can play this game to exercise your mental, change your memory and attention. One Line Drawing 2019 will provide you ★ Over hundred challenge sets. All free to play. ★ Daily Challenge. Challenge yourself everyday, make your brain more smart. ★ Game Prompts. If you really do not know how to connect all lines in one step, do not worry, just go ahead to summon prompts. You can screenshot to your friend and let them know which level are you in. Only 1% of player can solve some part of puzzle, Are ready to Challenge yourself?