**Raneko** (*"Ranekomappu"*; from Japanese, literally *"cat habitat map"*) is a logic puzzle published by Nikoli. A rectangular or square grid contains circles (with numbers or empty). The goal is to divide the grid into regions. Each region contains one circle ("cat"). A circle with a number indicates the size of a region. A grid may contain black cells. The number in a black cell indicates how many regions share an edge with that black cell.

**Cross+A** can solve puzzles from **3 x 3** to **30 x 30**.