fill one line puzzle game
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! Adam and Eve Go 3
In Adam and Eve GO, despite the dangers and the challenges of the prehistoric times, love found a way to blossom! Adam loves Eve and he'll do anything to make her happy. Join this adventurous caveman through the multiple fun and challenging levels of this game! Can you help him overcome the obstacles and bring a nice flower to his significant other?
Dinosaurs, traps, and many other dangers are waiting for you in this addictive game! Your objective is to complete each level by collecting a rose and bringing it to Eve. The game features 15 different levels for you to complete. Start from the first level. Use the arrow keys to move around and climb up and down the ladders. Be careful though! You'll encounter many different traps and obstacles. You need a way to bypass them. Either standing on pressure plates or using other objects would clear your way. You'll see fruits laying around in each level. Try to collect as many of them as possible, as these give you extra points. Approach other characters and give them what they want to gain items or even keys! Keys are required to open doors so you can reach Eve after collecting the rose. Enjoy! 
