How to play Sudoku well, how can I play Sudoku well?

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Ultra-detailed.

1. There are two ways to play Sudoku, that is, the intuitive method and the intuitive method candidate number method

1. Intuitive method: without making any marks, directly observing clues from Sudoku's disk potential, and deducing the answer.

2. Candidate number method: delete the numbers that have appeared in the allele group box, and fill in the blanks with the remaining fillable numbers as a reference for solving clues, and the fillable numbers are called candidates, or candidate numbers.

3. The intuitive method and the candidate number method are only the difference between whether there is a note when filling in, according to personal habits, and is not the standard for identifying the difficulty of the question or the difficulty of the technique.

2. Sudoku is basically composed of three continuous houses to form a large column, which is divided into large rows and large columns.

First Row: Consists of the first, second, and third houses.

Second major line: consists of the fourth, fifth, and sixth houses.

Third major line: consists of the seventh, eighth, and ninth houses.

The first column: consists of the first, fourth, and seventh houses.

Second column: consists of the second, fifth, and eighth houses.

Third column: consists of the third, sixth, and ninth houses.

3. Basic solution of Sudoku:

1. Elimination method: use numbers to find the only fillable blank in the unit, which is called the elimination method, and the only space that can be filled in by numbers is called hidden single

1) The number can be filled in the only blank in the palace unit is called hidden single in box, also known as the palace exclusion method.

2) Numbers can be filled in unique blanks in the row unit called hidden single in row, also known as row elimination.

3) Numbers can fill in unique blanks in the column unit called hidden single in column, also known as column elimination.

2. Unique remainder method: Use the grid to find the only fillable number, which is called the remainder method, and the only fillable number in the grid is called the only remainder solution.

Second, the law is that only one solution is needed to produce the number through the basic solution, the elimination method or the only method, and when the advanced solution needs to be applied beyond this range, the solution point needs the advanced solution to assist the basic solution to meet the implicit uniqueness or explicit uniqueness to produce the number, and the solution of the solution point needs to be completed by multiple steps, so it is called the combined solution.

3. In addition, in 2006, Gary McGuire wrote a program to try to prove the existence of Sudoku with 16 hints through the law of violence, the method is very simple, since Bertram Felgenhauer and Frazer Jarvis have calculated the total number of unequal finalists to be 5,472,730,538, then run over each situation where the finale is 16 hints, if you don't find the number of 16 hints, Then it can be proved that the minimum number of hints is 17.

If you want to play Sudoku well, you need to master the most basic methods, buy a few books that are the most basic Bi Split Zen books to learn, master its skills, master the basic principles of repentance, and then expand the application according to the basic principles, from low to high.

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, was 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, a fixed number of 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 skills of Sudoku intuitive method are as follows: unique solution, base material based elimination, block elimination, remainder solution, rectangular elimination, unit elimination, remainder test, etc.

Generally, the unique number method is used, that is, the number that can be filled in each grid in a column or row is listed, and it can be determined that there is a grid that only buries the date and fills in a number, and then comes to play.

Players need to reason according to the information already given in Sudoku, fill in the numbers 1-9 on each row, column, and house of Sudoku, and the numbers in each row, column, and house cannot be repeated. Sudoku answers are unique, and if there are multiple answers, it means that there is an error in the solution process, and you need to carefully check the number filling in between the rows and the houses.

A Sudoku puzzle usually contains 9x9=81 cells, and each cell can only fill in one value. For an unfinished Sudoku problem, some cells have been filled with values, and other cells are empty, the player needs to reason according to the information already given in Sudoku, and fill in the numbers 1-9 on each silver hidden row, each column, and each house in Sudoku.

Introduction to Sudoku

Sudoku (shù dú) is a mathematical game that originated in 18th-century Switzerland. It is a logic game that uses paper and pen to calculate. Players need to deduce the numbers of all the remaining spaces according to the known numbers on the 9 9 board, and meet the requirements of each row, each column, and each thick line bending and breaking the palace (3*3) The numbers contain 1-9 and are not repeated.

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. Each number from 1 to 9 appears only once in each row, each column and each house, so it is also called "nine-square grid".

The game of Sudoku is that if there are 8 cells in a row with numbers, all that remains in that row is the number that has not yet appeared. The basic discarding method is the most commonly used intuitive method, and the unit elimination method is to find the only position that can add a certain number in a certain unit, which can be divided into row exclusion, column exclusion and nine-square grid elimination.

The remainder method is a method to determine what number can be filled in the difference wheel grid of a certain unit, and it is also a less commonly used method in the intuitive method. Sudoku game introduction Sudoku originated from the 18th century Tan Xinji Swiss mathematician Euler et al. research Latin square matrix mathematical game, is a use of paper, pen for calculus logic game, Sudoku board is a nine palaces, each house is divided into nine small grids, the use of logic and reasoning, in other spaces to fill in the number of 1-9, also known as "nine squares". The difficulty of the game is less if the number of hints for a question is less, then the question will be relatively difficult, and the number of hints is less for the difficulty of the problem has a more direct relationship, each less prompt, the difficulty of the question will increase several times, and the puzzle of the range of hints is an important celebratory factor.

Introduction to the Sudoku competition China Sudoku Championship, authorized by the domestic World Intelligence Federation to organize once a year, the purpose is to select the Sudoku masters of the year to form a team to participate in the annual World Sudoku Championship, with the continuous popularity of Sudoku this intellectual sport in China, more and more teenagers become Sudoku lovers, only 15-year-old Qiu Yanzhe also became the youngest captain of the A team.

Summary. Your friends, after our inquiry and research, we have compiled the following for you: Sudoku skills include basic understanding, standard rules, basic terms, main skills and non-main skills summary.

The essence of Sudoku is a logical reasoning problem, which requires continuous reasoning to calculate the remaining numbers under the condition that each row, column, and each thick line contains 1-9 and does not repeat.

Your friends and friends, after our inquiry and research, we have compiled the following for you: Sudoku skills include basic divination solutions, standard rules, basic terms, main skills and non-major skills. The essence of Sudoku is a logical reasoning problem, which requires continuous reasoning to continuously deduce the remaining numbers under the condition that each row, column, and thick line of the palace number contains 1-9 and does not repeat.

Sudoku techniques commonly used by your friends include elimination, unique remainders, block elimination, block unique circle imitation remainders, dominant pairs, and cryptotangerine base pairs 2. In the process of solving the problem, you can use the rule that the number 1 9 can only appear once in each row, each column, and each nine-square grid to solve the problem.