What is Sudoku and how to do it?

What is Sudoku? Sudoku is a math game. It is a logic game that uses paper and pen to calculate. This is Xian Yi's game, suitable for all ages! 1 year-old can start playing! Players must infer all the numbers with remaining spaces from the known numbers in the 9×9 disk, and ensure that the numbers in each row, column and thick line palace (3*3) contain 1-9, which is not repeated.

Sudoku is nine palaces, and each palace is divided into nine squares. Give a certain number and answer standard in the eighty-one box, and use logic and reasoning to fill in the number 1-9 in other blanks. Make every number of 1-9 appear only once in every row, column and house, so it is also called "Jiugongge".

In order to reduce the difficulty, just learn to fill in four squares and six squares!

You are here to challenge yourself!

Did it work? Try the other nine squares:

Tip: start with a row or column or house with many numbers!

Let's call it a day. The actual gameplay and methods will be upgraded later, and interested friends will care! How to do Sudoku? 1, Sudoku entry skill formula, the first basic elimination method, the second unique solution, when there are eight numbers in the row and column that do not appear repeatedly, the remaining numbers have unique solutions, and finally the remainder is detected, assuming that the numbers publish the results.

2. Sudoku is a logical game with paper and pen. The player must infer all the remaining blank numbers from the known numbers in the 9×9 disk. To put it simply, the number 1-9 should be filled in a 9X9 grid, so that every column, row and house contains exactly every number 1-9.

Sudoku can improve your thinking ability. In the process of doing the problem, if you learn some skills, you are generally looking for skills. If you don't understand the principle of skills, you will never touch these contents.

It starts with 9, with 9 below 4 in the middle. Push slowly to find 9. Then start from 8 and find 8, step by step 1. Finally, the synthesis looks fast. This topic is not difficult. What is Sudoku? /kloc-In the 8th century, the Swiss mathematician Euler and others invented a square matrix called "Latin Square". This square matrix stipulates that each row and column has non-repeating numbers. Later generations invented a fun puzzle game based on Latin squares, which is the prototype of Sudoku game. The formal Sudoku game first appeared in the United States in the 1970s, and later spread to Japan and the United States, and gradually became a puzzle game popular all over the world.

The standard of Sudoku is simple. Take Sudoku, the most common Sudoku, as an example, and then divide it into nine rows and nine columns of rectangular squares. According to the known numerical clues, fill in the number 1 ~ 9 by using logic and reasoning, so that each number appears only once in each row, column and 3×3 square. In addition, Sudoku Sudoku is filled with the number 65438+.

There are ever-changing ways to sort numbers in Sudoku. Children can improve their observation ability and logical judgment ability when playing Sudoku, so Sudoku is a very effective and interesting digital game to train students' thinking ability. How to calculate Sudoku? The formula of Sudoku is rule 45, and methods are often used in Sudoku. It is not difficult to understand that in Sudoku, every 3X3 in each row and column must have 1~9, which means that the sum of the numbers of each team is 45, 1+2345678+9 = 45.

Because only 1-9 can be filled in every column, every row and every nine squares, the total must be 45. Applying this rule can help solve many problems. For example, the first number is data and the second number is lattice number.

The benefits of Sudoku

1. Cultivate mathematical thinking, improve the sense of numbers, and lay a good foundation for future mathematical achievements. The key to learning mathematics is to find out the principles and laws of mathematics. Sudoku adopts very simple standards, which can help children understand what is the standard of mathematics and cultivate mathematical thinking and sense of numbers from an early age.

2. Sudoku is a great logical game, which can improve the ability of logical judgment, be more skilled in doing things, and have logical thinking, that is, the ability to observe, compare, analyze, summarize and reason things. People with strong logical thinking are more organized. Mathematics is not just arithmetic, the key is to cultivate the ability of logical judgment.

3. Improve children's concentration and insight.

Box B can be filled with 1, 2, 3 or 4;

Box c can be filled with 3 or 4; and

D can be 3 or 4.

So we know that grids C and D must be 3 or 4. Grid a and grid b cannot be 3 or 4, so they can only be 1 or 2. This information may help solve other blank figures.

The difficult sudoku problem may take a lot of time to solve. The difficult sudoku problem may actually take several days to solve, but it is still very interesting. The topic will be more difficult, and the greater the happiness after the end. Hard Sudoku is the same as simple Sudoku, except that you are given only a few known numbers at first. As long as you know what numbers can be filled in each box, it will be much easier to solve the problem. What does Sudoku mean and how to play it? Sudoku is a mathematical game, which originated in Switzerland in the18th century. It is a logic game that uses paper and pen to calculate. Players must infer all the numbers with remaining spaces from the known numbers in the 9×9 disk, and ensure that the numbers in each row, column and thick line palace (3*3) contain 1-9, which is not repeated.

Sudoku is nine palaces, and each palace is divided into nine squares. Give a certain number and answer standard in the eighty-one box, and use logic and reasoning to fill in the number 1-9 in other blanks. If every number of 1-9 appears only once in every row, column and house, what does it mean to be called "Jiugongge" Sudoku and how to play it? Sudoku is a mathematical game, which originated in Switzerland in the18th century. It is a logic game that uses paper and pen to calculate. Players must infer all the numbers with remaining spaces from the known numbers in the 9×9 disk, and ensure that the numbers in each row, column and thick line palace (3*3) contain 1-9, which is not repeated.

Sudoku is nine palaces, and each palace is divided into nine squares. Give a certain number and answer standard in the eighty-one box, and use logic and reasoning to fill in the number 1-9 in other blanks. Make every number of 1-9 appear only once in every row, column and house, so it is also called "Jiugongge".