It is a Nonogram that solves problems with logic and calculations.It is called "Picross", "Nonogram" and it is the best logic game with Sudoku.Complete over 2,000 different puzzles to make a great picture.** Other themes by mode **10X10: Various pictures15X15: Landscape painting20X20: masterpiece** Game Features **Provides 3 modes (10X10, 15X15, 20X20)Automatic game savedAuto X FillProvide a hint