Nanro is a number placement logic puzzle where numbers must be entered into a grid.


The objective is insert numbers, subject to the following rules:

  1. Each area must contain at least one numbered cell.
  2. Numbers in some cells count the total of numbered cells in that area.
  3. Where two numbers connect across a boundary between areas, those numbers must be different.
  4. Numbers must form one, connected area with no 2x2 areas of numbered cells.


A standard 10x10 nanro and its solution.

Nanro Example
Nanro Answer