Trace a continuous route through a network of connected nodes. Use every line once, revisit junctions when needed, and look ahead before a route closes.
Explore 90 fixed route puzzles across four chapters. Begin with open-choice puzzles, move on to marked starting points, follow ordered waypoints, and then read one-way arrows.
Drag from node to node to draw your path. Lines light up as you use them, while unused exits stay visible. Lift your finger to keep your progress, undo a segment to rethink a turn, or restart the route whenever you want.
Use a two-level hint for a starting suggestion or one next line, with a short explanation of the choice. If a route closes early, review the blocked junction and the lines still uncovered.
Track completion times, personal records, undo counts, and hints. Finish a route without hints to earn its local badge. A daily route rotates from the built-in puzzle collection on your device.
All puzzles and records are available offline. Progress and preferences stay on your device; no account or network connection is needed.
Plan a path that uses every line exactly once.