The word "Sudoku" means "a single number" or "a number that appears only once", which is a puzzle activity in the form of numbers. But now, based on this game rule, there are many Sudoku games with other materials, such as animals, fruits, shapes and so on. From the perspective of whether children can play, as long as children master the rules of the game, they can play games with materials other than numbers; After children can read, they can also play traditional digital sudoku. However, whether children can understand the rules of the game, whether they can play and how well they play is mainly related to the development of children's logical thinking ability. The emergence and development of logical thinking are mainly concentrated at the age of 6 or 7. Before that, children mainly relied on concrete images of surrounding objects to think, and they still could not understand pure numbers and logical rules. Therefore, parents can choose to teach their children to learn Sudoku when they are young, but they can't force them to reach any level. They should focus on animals, checkpoints, simple graphics and other materials. There are many books related to Sudoku, which can be retrieved at random in a book mall like JD.COM. There are also many App products, and you can find many independent Sudoku game products by searching for "Sudoku" in the application market. There are also some comprehensive training products, not only Sudoku games, but also other games to train thinking. For example, elephant brain power: the above, I hope to help the subject. Your adoption is a support for my work.