Square Off
This is a modification of a kind of puzzle that can be found on the Puzzle Japan website (www.puzzle.jp/index.html.en). These puzzles consist of square or rectangular grids that have numbers in some of the spaces. The puzzles are called “Nurikabe,” which means, “painting walls.” The object is to fill the grid by “painting walls” between the numbers so that each number is left in a white area containing that many squares.
Get Puzzle (300k PDF file; Requires Adobe Reader)