Smart Line Puzzle is a relaxing and addictive brain-training game where your goal is simple: draw the entire shape using just one continuous line without lifting your finger or repeating a path.
Sounds easy? Think again. Each level becomes more challenging and will test your logic, focus, and problem-solving skills.
Perfect for quick brain workouts anytime, anywhere.
Features: • Simple one-line drawing gameplay • Hundreds of challenging puzzle levels • Clean and relaxing design • Smooth animations and controls • Great brain training for all ages
Can you solve every puzzle with a single line? Start playing Smart Line Puzzle now and challenge your mind!
Updated on
Mar 17, 2026
Puzzle
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