Draw a line, leave room for the next, and see if you can cover the whole board. A route that looks right can leave an awkward gap somewhere else. Get it all to fit, and watch the board light up.
Simple rules, deep puzzles
Play through stages ranging from small, approachable boards to dense puzzles that take careful planning. There's no timer or score, and every move can be undone.
A new puzzle every day
A fresh board each day, with the same puzzle for every player.
Pick any difficulty
Choose a difficulty from 1 to 100 and play a fresh puzzle whenever you like.
Make your own
Paint your own puzzles and share them with friends using a short text code. You can share any puzzle you play, too.