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.
Use hints for puzzles that are too hard to solve.
Hints are also free, of course.
4 levels of difficulty.
A whopping 2,000 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!
Simple and challenging
Jan 16, 2021
I honestly very enjoy playing this game. As you play the time passes by very quick without you recognizing, its a pretty fun and calming game. Highly suggest to play it🙃🙃🙃
Feb 10, 2021
I paid the 2.99 to get rid of the ads so that’s not an issue and it’s free if you don’t mind them. It is a really distracting and fun game. The only thing that I don’t understand is what the coins are for. There doesn’t seem to be anything to “buy” without watching an ad sooo I don’t get it. I don’t use the hints and have about 90 saved up so maybe it’s for that when you run out? I don’t know, but totally fun game.
Dec 20, 2020
Feb 06, 2021
App was great until today when it showed my 8yo daughter two sexually romantic ads in less than 2 minutes of each other. Really like the game for problem solving nut not happy with the ad choices. Review your ads to make them ok for any age, Fill!
Jan 15, 2021