Sudoku Challenge is a great Android game developed by Dat Viet Entertainment. The game features beautiful images related to student life, such as notebooks, pencils, and notes, which can take you back to your childhood days. The game offers up to 2000 puzzles divided into four levels: easy, normal, hard, and expert.

Sudoku Challenge is a fun and relaxing game that you can play in your free time. It is perfect for those who love Sudoku puzzles or want to improve their problem-solving skills. The game also features statistics tracking, beautiful effects, and hints to help you complete hard puzzles. Overall, Sudoku Challenge is a great game that provides a challenging and enjoyable experience for Sudoku enthusiasts.