"Nonogram" is a free puzzle game developed by Křížovkářský Ráj for Android. The game is a perfect way to spend your free time as it challenges your mind and offers a fun experience.

The game consists of revealing a hidden picture by filling in a board of vertical and horizontal lines with numbers. The numbers indicate how many cells in a row or column should be filled in to gradually uncover the hidden picture.

"Nonogram" offers several features to make the game more enjoyable, such as the ability to undo and redo moves. The game also saves your progress automatically so you can pick up where you left off. Additionally, the game checks the numbers automatically to ensure that you are on the right track. Lastly, the game offers three types of input methods, so you can choose the one that suits you best.

Overall, "Nonogram" is a great puzzle game that will keep you entertained for hours. It's challenging, fun, and easy to play. Download it now and start revealing those hidden pictures!