Sudoku is a logic puzzle game that arranges numbers based on combination rules. The object of the game is to fill a 9×9 grid with numbers so that each column, each row, and each of the nine 3×3 sub-grids that make up the main grid (also called “boxes”, “cubes”) ”, or “zone”) contain all the digits from 1 to 9. The puzzle has been partially completed, the player must continue solving by entering the numbers. Every well-established puzzle has a unique way of doing it. Let’s go88 find out more.
History and Origin of Sudoku Game
Sudoku game is one of the most popular logic games in the world today. This game was invented in Japan in the 1980s by a journalist named Howard Garns, who created a number game called “Number Place”. However, it only became popular in Japan after it was published under the name “Sudoku” by the Nikoli book company in 1984.
The word “Sudoku” means “single number”, “simple” or “least”, and the name reflects the nature of the game: although it seems simple, it requires players to think Be logical and careful to complete the sudoku board.
The sudoku board consists of a 9×9 grid divided into 9 smaller 3×3 blocks. The aim of the game is to fill the empty cells with the numbers 1 to 9 so that each row, each column and each 3×3 block contains all the numbers 1 to 9. A sudoku board is usually solved by filling in each cell and row, until all the blank cells are filled.
Not only is it an interesting entertainment game, sudoku is also considered a great tool to train the brain and concentration ability. The game has also become a part of pop culture, appearing in magazines, books and even on consumer products such as t-shirts and puzzles.
In short, the game sudoku originated in Japan and has become a popular logic and entertainment game worldwide. With features that help train the brain and ability to concentrate, sudoku is not only an interesting entertainment game but also a useful tool in everyday life.
How to Read and Understand Sudoku Rules
Sudoku is a very popular logic game all over the world. To play Sudoku, you need to read and understand its rules. The rules of Sudoku are very simple. A Sudoku board consists of 9 rows and 9 columns, forming 9 smaller squares, each smaller square is 3×3 in size.
The object of the game is to fill the squares with the numbers 1 to 9 so that each number appears only once in each row, each column and each smaller square.
To start playing Sudoku, you need to start with a blank board. In that blank table, some cells are already filled with numbers. These boxes are called “hints”. The number of hint boxes may vary depending on the difficulty of the Sudoku puzzle.
To solve a Sudoku puzzle, you need to start from the cells that already have numbers and determine the remaining numbers in the other cells. You need to use rules to solve Sudoku puzzles, including:
- Each row must contain the numbers 1 to 9 with no numbers repeated.
- Each column must contain the numbers 1 through 9 with no numbers repeated.
- Each smaller square must contain the numbers 1 to 9 with no numbers repeated.
When you fill in blank cells, you need to determine the possible values for those cells using the numbers that have been filled in in the corresponding row or column. If you cannot determine any value for a certain cell, you can try to continue solving the puzzle on other cells and come back later to determine the value of that cell.
Finally, when you have filled in all the blanks and achieved the game’s goal, you will complete the Sudoku puzzle and enjoy the joy of victory.
In the Vietnamese language, the rules of Sudoku are called “Sudoku Rules” or “Sudoku Rules”. You can find a lot of resources and tutorials online to improve your Sudoku puzzle solving skills.
Sudoku Solving Strategies for Beginners
Sudoku is a very popular logic game all over the world. The goal of this game is to fill in the numbers from 1 to 9 into a square grid divided into 9 small squares, so that each column, each row and each 3×3 subsquare has only one word. 1 to 9. Here are some Sudoku solving strategies for beginners:
- Find the largest number in empty cells: If you see an empty cell in the Sudoku grid and don’t know what number to put in it, look at the filled-in cells and find their largest number. Then check to see if that number appears in any row, column, or subsquare. If not, enter that number in the blank box.
- Find the least number in empty cells: This is a similar method to the first strategy, but used for cells with the fewest number choices. If you have a blank cell and there is only one number that can be filled in, fill that number in the blank cell.
- Find the range of numbers: Once you’ve filled in a number in one square, look at the other cells in the row, column, or subsquares and eliminate the numbers that have already been filled in. For example, if you have entered the number 7 in a square, and you know that the number 7 does not appear in any other row in that subsquare, you can remove the number 7 from all the other cells in the cell. square that one.
- Use filled-in numbers: Once you’ve filled in a number in a square, use that number to look at the other squares in the row, column, or subsquares. For example, if you have entered the number 5 in a square and it appears in only one row, you can be sure that the number 5 does not appear in any other box in that row.
- Use cell correlation: If you see two squares that are directly related (for example, the same row or same column), look at the number options of those two squares to limit your options. Select possible numbers for other cells in that row or column.
- Trial and error: If you’ve tried all of the above strategies and still can’t get the number in the square, pick a random number and start filling in from there. If you encounter duplicates, try another number.
With the above strategies, hopefully you can solve Sudoku puzzles more easily. Good luck!
How to Solve Sudoku
Sudoku is an extremely interesting and popular logic game around the world. In this game, you will be given a 9×9 square board divided into smaller 3×3 squares. Your goal is to fill the cells with numbers so that they are not repeated in the same row, column, or cell.
The steps to solve Sudoku are as follows:
Step 1: Identify empty cells
First, you need to identify the empty cells in your Sudoku board. Empty cells will be represented by cells without any numbers.
Step 2: Determine possible values
Next, you need to determine the possible values for the blank cells. To do this, you need to analyze each row, each column and each small cell to determine the numbers that have appeared and the numbers that can be used.
Step 3: Apply the rules
Once you have determined the possible values for the blank cells, you need to apply Sudoku’s rules to eliminate invalid values. The rules of Sudoku include:
- Each row, column, and cell can only contain a single number from 1 to 9.
- Cells that already have zero numbers are not allowed to appear again in the same row, same column or in the same small cell.
Step 4: Repeat until solved
Next, you need to repeat the above steps until you have solved the entire Sudoku board. During the solving process, you may encounter conflicting cases when a number appears in the same row, column or in the same small cell. When this situation occurs, you need to go back to step 2 to find a new value for the corresponding blank cell.
Sudoku is a great logic game to train your mind and logical thinking ability. By applying rules and analytical skills, you can solve any Sudoku puzzle!
Common Mistakes When Playing Sudoku And How To Fix Them
Sudoku is a very popular logic game all over the world. It is highly appreciated for its entertainment and brain training capabilities. But when playing Sudoku, there are also common mistakes that players do not know about. Here are common mistakes when playing Sudoku and how to fix them.
- Duplicate number error: This is the most common error when playing Sudoku. Players can place two identical numbers in the same row or column or square. This will cause the Sudoku board to be incorrect and impossible to complete. The solution is to carefully check each box to determine the numbers that have been used and select the appropriate box for the remaining numbers.
- Missing number error: This error occurs when the player tries to fill in the Sudoku board without one or more numbers. This will cause the Sudoku board to fail to complete. The solution is to carefully check the Sudoku board, and make sure that all numbers from 1 to 9 have been used properly.
- Error of selecting wrong cell: This is an error when the player enters the number in the wrong cell in the Sudoku board. This will cause problems in completing the Sudoku board. The solution is to carefully determine the exact position of each cell in the Sudoku board and enter the correct number in the corresponding position.
- Solving error: This error occurs when the player solves two parts of the Sudoku board in the same way. This will cause errors when solving other parts of the Sudoku board. The solution is to carefully check the entire Sudoku board and make sure that no two parts are the same.
- Error solving too early: This error occurs when the player finishes solving the Sudoku part without carefully checking the results. This will lead to errors and the inability to complete the Sudoku board. The solution is to carefully check the entire Sudoku board before completing it.
When playing Sudoku, players need to be careful and carefully check the Sudoku board before completing it. Solving common errors will help players complete Sudoku more easily and accurately.
How to Find Numbers in Sudoku Quickly
Sudoku is a simple but engaging and fun logic game. In this game, you need to fill in the numbers from 1 to 9 into a 9×9 square grid so that each row, each column and each small 3×3 square contains all the numbers from 1 to 9 without is repeated. However, finding numbers in Sudoku can be a challenge for many beginner players.
To help you find numbers in Sudoku quickly, you can apply some of the following strategies:
- Identify empty cells: First, identify the empty cells in your Sudoku grid. These blank cells are the cells where you need to fill in numbers. You can focus on the blank cells first and then return to the cells that already have numbers.
- Use an existing number: If you’ve already entered a number in a cell, use that number to help you find other numbers. For each number filled in, look at the rows, columns, and small squares it belongs to. You can eliminate numbers that are already in those rows, columns, and small squares and from there look for other numbers.
- Search by rows and columns: The rows and columns of the Sudoku grid can also help you search for numbers quickly. Look at the rows and columns to see the numbers filled in. If a number appears only once in a certain row or column, enter that number in the corresponding blank box.
- Search by small squares: Each 3×3 small square can also help you find numbers quickly. Look at the small squares to see the numbers filled in. If a number appears only once in a small square, enter that number in the corresponding empty box.
- Use the symmetry method: This method applies to the case when you have filled in a number in an empty cell and you want to find the remaining number to complete the row, column or small square. Look at those rows, columns or small squares and look for empty cells that are symmetrical to the cell where the number is filled in. You can then search for other numbers to fill in those blank cells.
With some of the above strategies, you can find numbers in Sudoku more quickly and help you complete the game easily. However, sometimes, solving Sudoku depends on your luck and experience.