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fill one line puzzle game

Sharpen your mind with a connect-the-block-style one-line brain training puzzle game.
This simple addictive game is free to play.

The act of playing keeps your brain active.
Keep your brain active during your commute and before going to sleep.

These rules are simple to follow.
Fill in the gaps with one line

Tips are a great method to tackle difficult problems.
Hints are also free, of course.

There are four levels.
There are more than 22,000 puzzles.
Don’t get too comfortable, as the puzzles will get more difficult with each step.

One-line puzzles are mathematical challenges that were developed in the 18th century. The Pregel River was the basis for the first puzzle, which was first presented in Konigsberg.
Many believe that mathematical thinking can boost productivity and slow down the ageing process.
This game is suitable for anyone, math or not.
These puzzles will keep your brain engaged!

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