Check! (Nonogram)

Check! Is a game in which you use simple logic to solve puzzles. If you like puzzle games like Sudoku, you'll absolutely love Check! Check! Has adjustable difficulty levels and features puzzles of many sizes that are randomly generated for endless game play. A simple 5 by 5 game on easy can take only seconds to solve, whereas a 16 by 16 on hard can take over an hour.