NonoGrid is a puzzle game that lets you play and solve nonograms/griddlers on your PC. Nonograms are logic puzzles, in which you need to uncover an image consisting of black and white blocks. You start out with an empty grid and you use clues and logic to find out which blocks in the grid. This PC variant comprises 150 puzzles, and has easy correction, hints and assumptions. Includes a tutorial on solving nonograms.