Nurikabe puzzle 31 - Hard Nurikabe 13x13

Posted on May 18, 2015

I really love solving this Nurikabe puzzle. I hope you have as much fun trying to solve it as I did.

How to play Nurikabe: The goal of Nurikabe is to determine whether each of the cells of the grid is “black” or “white” according to the following rules: * All of the black cells must be connected. * Each numbered cell must be part of a white island of connected white cells. * Each island must have the same number of white cells as the number it contains (including the numbered cell). * Two islands may not be connected horizontally or vertically. * There cannot be any 2 x 2 blocks of black cells.