Sudoku is one of the best classic sudoku games on Google play. Sudoku is the most popular puzzle game where players try to fill all boxes of the 9x9 grid with a single number (1 to 9). The challenge is to find only one solution. Only one number can be placed in a single box. The game can be played in 5 different difficulty levels (Easy, Medium, Hard, Expert, Ultimate). So, you can play the game at your own speed. Try it now! You can also see your progress by keeping track of the statistics of your best time and your played puzzles.