1Line One-Stroke Puzzle One Line with One Touch is a free-to-play puzzle game, you merely have to draw one line. It is a deceptively simple dot-touch pro, yet profoundly deep one touch drawing. It is simply called 1 stroke puzzle. Play through the extensive tech trans levels and stages, sharpening your mind magic as you have fun. 🌟🌟🌟Summary 🌟🌟🌟 1line one⊷stroke puzzle pro is a brain-training puzzle game that activates your mind as you play. When you've got a spare moment, on your daily