Claim

trail your yarn across. the wolves keep their side.

lead a sheep out of its pasture trailing red yarn and back again: the side with no wolf becomes your pasture, but a wolf touching the open yarn unravels it toward the sheep

Every line of yarn you trail from your pasture back to your pasture cuts the meadow in two, and the side no wolf can reach becomes yours. While the yarn is open a wolf that touches it starts it unravelling toward your sheep: get home first and the claim still stands. Long lines take more and stay open longer. Close a lost lamb into your side and it joins the flock.

Concepts: area, partition.

An interactive you play with one thumb, on Wundr.