Miti
Mark cell borders to create a one-cell-wide loop with exactly three lines at every dot.
Controls
Tap or drag along cell borders to mark them. Every given dot must have exactly three marked lines meeting at it, while every other grid point may have at most two. The unmarked borders must connect all cells into a single closed one-cell-wide loop with no branches or dead ends. Use Clear to reset and the answer button to reveal or hide the full solution.
Brain training · PuzGo