Single Line

In Single Line, geometric figures fill the board and wait for one unbroken stroke. The puzzle set is split into beginner, expert, and guru groups. Twenty levels sit inside each group. New boards stay locked until you finish the earlier ones, so the path moves forward in order. Early shapes look harmless. Later layouts force you to plan your route before your line touches the first segment.

How to play?

Trace the entire figure without lifting the line away from its outline. No segment can be used twice. Some patterns fail after a single wrong pass, even when only a few edges remain. Hints are there when a route gets tangled, and you need a push toward the right path.