One line through every point.
Draw one unbroken line through the whole board. Then watch the board fold: a square becomes a cube, the cube becomes a tesseract, and you keep going.
Every world adds one idea
The rules stay simple. The space around them grows.
Square
Draw the line. Then a fixed start and finish.
Cube
Hop between layers. Walls block the way.
Tesseract
The fourth dimension, with numbers, turns and holes.
Higher
For the brave: boards in five and six dimensions.
Three new puzzles, every day
Easy on a square, Medium on a cube, Expert on a tesseract. Everyone gets the same three.
More ways to play
When the Dailies are done, the board never runs out.
Rule packs
40 boards on each rule, easy to hard.
Endless
New boards that grow with you.
3-minute Sprint
Small boards, as many as you can.
Hints that teach
A hint lights the next point and tells you why it has to be there.
Calm by design
No ads, ever. No account. Plays offline. Coming soon to Google Play.