The game filling the figure shown at each stage with only a piece with the same shape. That it's achieved respectively by 3 kinds of piece in one stage, stage clearance. Itself is fun using the brain and a game can play, UI is not completely satisfactory. The boundary where it's between a lot of ones and the put pieces to become a meander disappears only one-way, so when trying to relocate when making a mistake, the revolution of a piece is inconvenient. And I don't know which stage one is challenging now (There are no numbers of the stage.) You just change that, and it seems to be the application recommended fairly.
デベロッパの回答 、 Thank you for review and feedback. We will try and improve the game in next updates based on your input :)