Sharpen your mind with a connect-the-block-style one-line brain training puzzle game. A simple but addictive one-line puzzle game that’s completely free to play. Your brain becomes more active the more you play. During your commute, before you sleep… enjoy downtime with brain training. The rules are extremely simple. Just fill in all of the blocks using only one line. brain training, puzzle game, one line puzzle, free game, mental exercise, cognitive skills, memory improvement, focus, problem solving, arcade game, casual game, hypercasual, brain games, online puzzle, mobile game, sharpen mind, brain workout, downtime, commute, offline game