Sudoku, also known as Number Place, is a classic logic-based number-placement puzzle game that has been enjoyed by millions of people around the world. The goal is to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3x3 sub-grids contains all of the digits from 1 to 9.

Sudoku - Classic Sudoku Game is an Android app developed by CanaryDroid that offers more than 20,000 well-posed puzzles and perfectly balanced difficulty levels. The app also features daily challenges, notes (pencil) mode, highlight duplicates, intelligent hints, and 2 input modes. The interface is super smooth and easy to navigate with unlimited undo and eraser options to help players get rid of mistakes. Additionally, the app automatically saves progress when the player gets a phone call, switches applications, or locks the phone. Sudoku - Classic Sudoku Game also has a day and night mode to suit the player's preference.

Overall, Sudoku - Classic Sudoku Game is a must-have app for Sudoku enthusiasts looking for a challenging and entertaining experience on their Android device.