Fill Line – Fill Squares Line Puzzle Game

Fill Line can help you to get 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.

Fill Line is a mathematical problems based game.
Your brain becomes more active the more you play.
During your commute, before you sleep… you can enjoy downtime with brain training.

The steps to play this free puzzle game are simple:
Just fill in all of the blocks using only one line.
You can restart at any step you want.
Fill all squares with a continuous line.

To get some help you can use hints for puzzles that are too hard to solve.
Hints are also free, of course.

15 levels of difficulty.
A whopping several puzzles.
Don’t get too cozy—the puzzles get harder as you go along.

One-line puzzles are mathematical problems with origins in the early 18th century. First posed in Königsberg, the original puzzle revolved around the town’s Pregel River.
Mathematical thinking is said to increase work efficiency and prevent aging.
Whether math is your bane or your forte, be sure to give this game a try.
You’re sure to get hooked on these puzzles!

It's also very entertaining to do puzzle.
Fill Line – Fill Squares Line Puzzle Game is the best you can try to sharpen your mind.