Fill One Line Puzzle Game

Sharpen your mind with a connect-the-block-style one-line brain training Fill One Line Puzzle Game. Simple, but addictive this one-liner game is free to download. Playing keeps your brain active. While you commute, or just before you go to sleep... unwind with brain-training.

These rules are quite simple. Fill in the blocks with one line. Use tips for puzzles that are difficult to solve. Hints are also free, as well.

There are four levels of difficulty. Over 2,000 puzzles. Don't get too comfortable The puzzles will get more difficult as you get better at them.

One-line puzzles are mathematical puzzles that first appeared in the 18th century. The original puzzle was created in Konigsberg and was centred around the Pregel River. Mathematical thinking can boost productivity and slow down the aging process.

This game is appropriate for everyone, math or not. These puzzles will keep you hooked!