Sketch Picross2 (Nonogram)

To complete the whole picture, you may solve nonogram puzzle one by one.

- O button: Find the square Touch or drag.

- [X] button: Touch or drag, you can search for empty space.

- [Delete] button: I will erase the O and X.

- Undo button: I will restore the O and X to its previous state. I will remember before the 100 times.

- Tips button: me looking for something square.

- When you exit the game, even out on the map, will the current state is "auto-save".

- Map Type : 5X5 , 10X10, 15X15, 20X20