Sudoku - Time Challenge is a free Android game that offers unlimited games in all levels of difficulty, from super easy to almost impossible. Developed by TildePro, this game boasts a stylish and easy-to-use interface that includes a timer and a time to beat for all boards, a ranking/world ranking, statistics, and performance graphs.

The game includes a built-in tutorial that will get you started, and helpers that can be turned on/off as you like. Two playing modes are available for fast playing early and late in the game, and there is even a "paper experience" mode for those who prefer to play Sudoku with pencil and paper. In addition, the game offers a daily challenge that, when solved, awards extra points to improve your ranking. With its sleek design and endless puzzles, Sudoku - Time Challenge is a must-have for Sudoku enthusiasts of all levels.