Kraal: Fence Logic Puzzle

A field of sheep and foxes with open range on every side. You do not tap a square here — you tap the LINE between two squares, and a length of fence goes up along it.

Pen every sheep, with no gap left for it to walk out through. Let every fox get away, with a route to the edge still open. Do both using the exact number of segments the board gives you, not one more. Those two halves pull against each other, and that is the whole puzzle: a fence that closes a sheep in very often closes a fox in with it.

A press aims and draws the fence you would build before you build it, and the release commits it. Old fence and new fence differ by the shape of their posts before they differ by colour, so "which of these did I just put up?" never depends on the palette you have equipped.

Every board is generated and then solved before it ships, so the segment count you are given is a real number rather than a guess. No timer, no way to lose, and it all works offline.