NonoGrid is a puzzle game that lets you play and solve nonograms/griddlers on your computer.

Nonograms are logic puzzles, in which you need to uncover a picture consisting of black and white squares.

You start out with an empty grid and you use clues and logic to find out which squares in the grid.

This computer version includes 150 puzzles, and has easy correction, hints and assumptions.

Includes a tutorial on solving nonograms.A free two-hour trial edition is available.

If you like the game you can buy a license key that can be used to unlock the game and remove the time limit.