Sudoku is a popular game with a long history. This amazing game now becomes more interesting by integrating the latest blockchain technology. After finishing each game, you will gain credit points which could be instantly transferred to Matic coins. Note that Matic is a popular crypto currency on the market. There are several game levels suitable for different users. Your game records are saved locally for review. If you are new to Sudoku, you can also find the rules from this App to start playing. Enjoy playing and earning!