How to play the singular number game,,Can anyone tell me to pull.。。。

First of all, it should be the Sudoku ......

The rules of the game are very simple, 9x9 grids, there are already a number of numbers, the other houses are blank, players need to deduce what number is in the remaining space according to the logic, so that each row and each column has a number from 1 to 9, and each small nine square grid also has a number from 1 to 9, and a number can only appear once in each row and column and each small nine square.

Sudoku method [can solve any Sudoku problem] (for reference only) Step 1: Look at the horizontal line (principle: the determined number in this line is greater than or equal to four) Write the possible number in each space (according to the horizontal and vertical lines already existing, but do not look at the nine houses) Step 2: Look at the nine houses.

Cross out the numbers that don't have a chance.

Step 3; Repeat 1

Step 4: Repeat 2

At this point, there are numbers in almost every space (general Sudoku has been solved), and the horizontal and vertical rows, the nine-house principle (the obvious principle) has been exhausted.

Implicit Principle 1:

Example: The number to be filled in in a horizontal row is as follows:

The first cell (4) contains four elements.

Therefore, these four numbers can only be in them, so in the fifth box 3 remove the fifth step: repeat, using the implicit principle 1

Step 6: Examine the overall situation, using 1 5

At this point, there are only a few squares left (the difficult Sudoku has been solved), and there is a second implicit principle:

This line is complex, and implicit principle one is difficult to work.

But it can be seen that the number 5 only has one chance in this row, so the fifth square can only be it!

Step 7: Repeat, using Implicit Principle 2

Step 8: Examine the overall situation and make use of 1 7

All Sudoku has been solved, if it can't be solved, there are three reasons.

1. You solved it wrong, 2, there is a condition, you don't see 3, this Sudoku problem is solved.

Sudoku. Sudoku is played in 9x9 squares, divided into 3x3 small squares, known as "zones":

Zone - Sudoku starts with the box that has already been filled in with numbers

The object of Sudoku is to fill the blanks with numbers between 1 and 9 according to the following rules, and only one number can be filled in a square:

1.Each number can only appear once per line:

Allowed Not allowed.

2.Each number can only appear once in each column:

Allowed Not allowed.

3.Each number can only appear once in each zone:

Allowed Not allowed.

To summarize these rules, each number can only appear once per row, per column, and per zone.

Sudoku, as the name suggests – each number can only appear once. Sudoku is a number puzzle that originated in Switzerland at the end of the 18th century, developed in the United States, and developed in Japan. The Sudoku board is a nine-house board, and each house is divided into nine sub-squares.

In these 81 grids, certain known numbers and solution conditions are given, and the numbers from 1 to 9 are filled in the other spaces using logic and reasoning. Make each number from 1 to 9 appear only once in each row, column, and house. This kind of game comprehensively tests the observation and reasoning skills of the problem-solver, although the gameplay is simple, but the arrangement of numbers is ever-changing, so many educators think that Sudoku is an excellent way to train the mind.

Sudoku solutions are all derived from rules, and the basic solutions are divided into two types of ideas, one is the elimination method and the other is the unique method. More complex solutions will eventually fall into these two categories. The following is a brief introduction to several solutions with an illustration, as long as you take a few minutes to look at it, you can start doing Sudoku immediately.

The main Sudoku intuitive solution techniques are: unique solution, basic elimination, block elimination, remainder solution, rectangular elimination, unit elimination, remainder test, etc.

Unlike crossword puzzles, you don't need to know any specific language to play Sudoku. In fact, from a technical point of view, you don't even have to count. All you have to do is fill in the 9 numbers from 1 to 9 in a certain order in each row (from left to right), each column (from top to bottom), and each small nine-square grid (there are 9 small squares inside), and each number can only appear once in each row, each column, and each small nine-square square.

A good way to do this is to start with a small nine-square grid, and a better way is to study a set of small nine-square grids and find pairs of numbers so that you can launch a third one. For example, if there is a number 7 in the small nine-square grid in the upper left corner, and there is also a 7 in the small nine-square grid in the lower left corner, it is not difficult to push out the position of 7 in the small nine-square grid in the middle left.

The same is true for solving the numbers for horizontal positions. If there are two possibilities. Write it down, and then move on.

Each question can be solved through logical reasoning based on the clues provided by the numbers provided. If the correct method of solving the problem is followed, there is no need to guess. It's important to remember that there is only one answer to each question.

Start with the horizontal or vertical or small squares with the most known numbers, see which numbers can be filled in here, and then try them one by one (compare it with its horizontal or vertical or small squares). Finding a breakthrough is key.

This solves elementary Sudoku problems.

If you're doing advanced questions, that's basically how you think, but there are places where you may not be sure which number is unique, so you need to make a hypothesis. And then go down, and if there is no contradiction, it is successful. If there is a contradiction, go back to the hypothesis and re-establish another hypothesis.

Go on again.

It is to arrange the nine numbers from 1 to 9, and the same number cannot appear in each row and column, and the number requirements in each nine cells are different.

As long as the numbers are not repeated!

Sudoku is a subject that some primary school students love, but some lazy primary school students and primary school students who are not interested in learning will not play Sudoku is similar to Olympiad mathematics, a little deeper than mathematics, as long as you follow the requirements of the question, carefully review every number, because every place may have something to do with the answer, if this book is all right, I think you are a genius with an IQ of more than 200!

Sudoku: A logic game that uses pen and paper to perform calculations. According to the known numbers on the 9 9 plate, deduce the numbers of all the remaining spaces, and satisfy that the numbers in each row, each column, and each thick line palace contain 1-9, and are not repeated.

Sudoku gameplay: Deduce the numbers of all the remaining spaces based on the known numbers on the 9 and 9 boards.

You can use the elimination method to fill in the rows or columns where the numbers can be determined first, and give priority to the rows or columns with the fewest blanks.

It is a 9*9 square, in which you will be given some numbers at the beginning, and you have to fill in the numbers 1-9 according to the rules, so that each number from 1 to 9 appears only once in each row, column and house. It is a game that tests patience and care.