game description:

Picture logic game, featuring 60 unique puzzles ranging from 5x5 to 50x50 cells. Notes: The game defaults to “Supervised mode”, you may change this in the Options screen. Supervised: Players are notified whenever they make a mistake, incurring in a time penalty each time they fill a cell that should be empty. Free: No information is given to the player regarding his moves. Features a “What if?” mode allowing them to try out a partial solution to the puzzle.