Sudoku

Sudoku is a popular logic puzzle where you have to fill a 9x9 grid with numbers from 1 to 9. The aim is to place the numbers so that each row, each column and each 3x3 block contains all the numbers from 1 to 9 without repetition. Here is a step-by-step guide

1 . Start by analyzing the grid:It is important that you collect information as soon as possible.
Your information is used to look for any numbers that have already been given. These will be located in different cells in the grid. Identify any blocks or constraints already present that can help you fill in the rest of the grid.

2. Take a row, column or 3x3 block that looks promising:
Choose a row, column or block where there are few missing numbers or already many given numbers.
This helps reduce the number of possibilities and makes it easier to find the next correct value.

3. Analyze the available options:
Consider the empty cells in the selected row, column or block.
Examine the possible numbers that can be placed in each empty cell by taking into account the already given numbers and the rules of Sudoku.

4. Use the exclusion method:
Eliminate possibilities in the empty cells by comparing them to the already given numbers.
If a number already exists in a row, column or block, it can be excluded as a possibility in the other empty cells within the same row, column or block.

5. Use the narrowing method:
If there is only one possible location left for a particular number within a row, column or block, it can be placed there. Repeat this process with different numbers until you can't find any more obvious locations.

6. The trial and error method and using the pencil:
If you have reached a point where you cannot solve and find any obvious locations using the previous methods, you can select a cell and place one of the possible numbers in it with the pencil.
Continue filling in the rest of the grid with the pencil based on the selected number and see if it leads to a solution.
If it leads to an inconsistency or breaking the rules, try another option and repeat the process until you find the correct value.

7. Repeat steps 2-6 until the entire grid is filled correctly.
Remember that Sudoku is a challenging task that requires patience and logical thinking. With practice, you will get better at identifying patterns and finding the right solutions. Good luck in the game.

Stars

There are three difficulty levels:Normal, Advanced and Expert.
If you solve a Sudoku, you get stars - in Normal you get up to 2 stars, in Advanced you get up to 4 stars and finally in Expert you get up to 6 stars per solved Sudoku.

Tokens

When you play Sudoku you earn tokens.
- If you play in Normal each star has a value of 400 tokens
- If you play in Advanced each star has a value of 800 tokens
- If you play in Expert each star has a value of 1,200 tokens.

To earn the maximum number of stars and tokens, the Sudoku puzzles must be solved as follows:

Normal- under 5 minutes
Advanced- under 10 minutes
Expert- under 15 minutes

For every 5 extra minutes you spend on a puzzle (regardless of difficulty) you earn 1 less star.
You will always earn at least 1 Star for a completed Sudoku.

Tags:Sudoku puzzle, play sudoku, row column, multiple

Sudoku history

Sudoku is a popular logic puzzle that involves filling a 9x9 grid with numbers. The goal is to place the numbers 1 to 9 in each row, each column and each of the nine 3x3 blocks that make up the grid. Some numbers are already given as clues and the player must use logical thinking and deduction to complete the puzzle. Sudoku requires no mathematical skills, but rather an ability to analyze patterns and solve problems. It offers a challenging and calming gaming experience that can be played both on paper and online. The game has become popular worldwide and is considered an excellent way to train the brain and improve concentration and problem-solving skills.

General about Sudoku

At the beginning, the player is given some numbers as clues and the rest must be filled in using logical thinking and elimination. Sudoku is about finding patterns, solving problems and making informed decisions. It offers challenge, entertainment and the opportunity to improve skills such as concentration, patience and problem-solving abilities. Available both as printed puzzles and online, Sudoku is a popular activity for people of all ages who want to stimulate their minds.