What does Sudoku mean?

Sudoku is known as "Lego of thinking" and "game of smart people". Sudoku is a good way to help children develop their thinking, such as training their ability of analyzing problems and logical reasoning, and cultivating their overall awareness of solving problems.

But in fact, most parents have little knowledge of Sudoku: what is Sudoku? How to play Sudoku? Why do children who play Sudoku study well? What are the disadvantages of playing Sudoku? These questions about Sudoku have been comprehensively sorted out and shared.

1. What is Sudoku?

Sudoku originated from Nine palace map in China's Book of Changes, sprouted in Switzerland at the end of 18, and was named "Sudoku" by Japanese at the beginning of 19. Later, it quickly developed to European and American countries and carried forward. At present, this game has been popular all over the world.

The English name is Sudoku, where "su" stands for numbers, "doku" stands for single thought, and Sudoku stands for each number only once. Sudoku is very simple. Players need to logically infer the numbers in the blanks according to the rules of numbers and Sudoku that have appeared on the disk. Only unique numbers can be filled in.

From a mathematical point of view, Sudoku is actually a logical reasoning game. According to the known numbers, the player fills the numbers in the blanks by logical reasoning, so that the numbers in each row, column and bold grid are 1~9 and cannot be repeated. The picture below is a Sudoku problem. If parents try, they will find that it takes careful logical thinking and infinite patience to complete the blank.

Second, what are the classifications of Sudoku?

Standard Sudoku: The most common form of Sudoku, which consists of 9×9 squares, some of which have been filled with numbers. According to the known numbers, the player fills the numbers in the blanks by logical reasoning, so that the numbers in each row, column and bold grid are 1~9 and cannot be repeated.

Super Sudoku: It is more complicated than the standard Sudoku and consists of 16× 16 squares. Some more complex super sudokus include letters A to F in addition to the numbers 1 to 9.

Diagonal Sudoku: On the basis of standard Sudoku, it is required that the numbers on each diagonal are not repeated.

Sawtooth Sudoku: The layout of the grid is serrated, that is, the numbers in each row or column cannot be repeated.

Inequality Sudoku: On the basis of standard Sudoku, the restrictive conditions of inequality are added. As shown in the figure below, the unequal relationship between two adjacent numbers needs to be considered, and the unequal symbol indicates the size relationship between the numbers in two adjacent cells.

3. How does playing Sudoku help children learn?

Devote yourself to it and enhance your child's concentration.

Sudoku requires children to devote themselves to it, because a mistake in a number will make the game enter a dead end and need to start again. Some children will be aroused "fighting spirit" when playing Sudoku, and they will be more immersed and focused, because they have a strong heart and must solve it. At this time, it is best for parents not to bother, so that children can feel the sense of accomplishment of concentrating on their work and finally achieving success.

Use one's hands and brains to enhance children's reasoning ability

Mathematics is not only arithmetic, but also the ability of logical reasoning. Sudoku is a game that combines reasoning and calculus. 1~9 needs to be reorganized according to the rules. In the process of playing Sudoku, children must mobilize their abilities of observation, comparison, analysis, reasoning and generalization, and consider filling in both vertical and horizontal directions at the same time to obtain perfect fitting results. In this process, the brain is running at a high speed, the thinking is getting closer and closer, and the logic can become clearer and clearer.

Constantly bring forth the old and bring forth the new, so that children can correctly treat setbacks.

No matter how clever a genius is, he will hit a wall many times in the face of complex Sudoku games to find the right answer. Trying to start all over again is also the charm of Sudoku. Therefore, playing Sudoku can cultivate children's spirit of not being afraid of setbacks, perseverance of not giving up easily and courage to start all over again. These qualities are essential spiritual skills on the way to study.

Multi-dimensional thinking, cultivate children's overall view

When playing Sudoku, this problem will be difficult to complete if children focus on one point. The same space often requires children to think in multiple dimensions, and at the same time judge and summarize the situation in horizontal, vertical and horizontal directions. This holistic multi-dimensional thinking training improves children's overall consciousness and multi-dimensional thinking ability.

There are many ways to solve problems and improve children's creativity.

Examination questions have standard answers and the best way to solve problems, so students' thinking can easily be led in the same direction and form a mindset. However, Sudoku has no standard answer. Different people must have different processes to complete the same Sudoku table. There is no difference between different starting points and different methods, but children have fun and exercised their thinking in the process of completion. Therefore, when playing Sudoku, children do not have to follow the established thinking path, because all roads lead to the same goal. Parents can encourage their children to discuss solutions with friends, which is an excellent opportunity for active thinking and creative learning!

Parent-child interactive games can improve the quality of study companionship.

The introduction of Sudoku games generally needs the guidance of parents. If you can't get stuck, you need some tips. When children master the skills, they can complete them independently, and they can compete with their parents. In the face of difficult problems, parents can cooperate to solve them together. This series of operations is a good opportunity to enhance parent-child feelings and improve the quality of companionship.

Fourth, what are the misunderstandings in playing Sudoku?

1, you need to arrange your time reasonably to avoid excessive obsession.

Many children will be addicted to Sudoku games, and even spend time solving Sudoku problems when they should study and exercise outdoors, which will lead to their academic performance decline.

2. Children only learn skills and neglect thinking exercise.

In order to let children "learn" to solve the problem of Sudoku quickly, various Sudoku courses instill skills into children as conclusions. The correct use of Sudoku should be to let children explore these problem-solving skills themselves in Sudoku, so as to achieve the purpose of exercising their thinking.

3. Failure to solve the problem of Sudoku will hurt confidence.

Sudoku is not an exam, nor a skill that requires "grading", but an education and entertainment. If others can solve the problem quickly, but they know nothing about it, there is no need to feel lost, thus undermining the self-confidence in learning mathematics. Because sometimes Sudoku is a game of luck. If you fill in the key box quickly, the answer will come out naturally.