Turn a tile a quarter-turn. A colored endpoint must meet the same color on its neighbor: across a side, or diagonally across a corner.
Lines may cross without joining. Each color must become one unbroken circuit. No thread may end at the outside of the board or in a hole.
Check connections briefly marks loose ends. Scramble keeps the same puzzle; Random makes a different one. Any arrangement satisfying the rules wins.
Search with any seed up to 64 characters—words, numbers, punctuation, or emoji—or paste a share link. The same seed and world always produce the same puzzle. Your seed name stays with the puzzle and its links; its hexadecimal code appears underneath. Random chooses a new seed for the current world. A specimen link starts at the same scramble; Copy result shares your score and a fresh puzzle link. Copy progress includes the moves and the turn you are viewing. Arrow buttons or ← / → step through the history. Turning a tile from an earlier position replaces the later moves.
Sharing runs entirely in your browser. The link stores the board and moves after #; game progress is not uploaded or stored on a server.
Automatic copying is unavailable. Select and copy the text below.