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Sudoku Online

Sudoku rules: The playing field is a 9x9 square, divided into smaller squares with a side of 3 cells. The main objective of the game is to fill the empty cells with numbers from 1 to 9 so that in each row, in each column and in each 3x3 square each number occurs only once. Can you fill in all the cells correctly?

How to play Sudoku?

  1. Enter the first number

    Start playing by clicking on any empty cell you want to fill. Your task is to choose a number from 1 to 9 so that it does not occur twice in the same row, column or 3x3 square. Enter the first number
  2. Fill in the cells

    Fill in the cells with numbers one by one. To make solving a puzzle easier, use the note mode, and if you are stuck, you can use a hint. Fill in the cells
  3. Solve the puzzle

    Once all cells are correctly filled with numbers, the puzzle is solved! Check your time and try to improve your score next time. And also remember that the more difficult the level, the more interesting it is to solve Sudoku! Solve the puzzle

Frequently Asked Questions

  1. How do I play Sudoku?

    Sudoku is a logic-based number puzzle game. The objective is to fill a 9x9 grid with digits from 1 to 9 in such a way that each column, each row, and each of the nine 3x3 sub-grids contains all the numbers from 1 to 9 without repetition.

  2. Are there any rules to follow while playing Sudoku?

    Yes, there are. Each row, column, and 3x3 sub-grid must contain all the digits from 1 to 9 without repetition. Also, when the game starts, some cells already contain numbers, which you cannot change. The numbers you fill in the empty cells should not violate the above rules.

  3. Can I input a wrong number in a cell?

    You should avoid inputting wrong numbers, as each number in the grid must be unique in its respective row, column, and 3x3 sub-grid. However, many Sudoku games prevent you from putting an incorrect number as an added safeguard.

  4. Can the puzzles be solved using only logic?

    Yes, Sudoku puzzles can always be solved using logical reasoning and deduction, without needing to guess. Every puzzle has a unique solution, and you can solve it by applying various Sudoku-solving techniques such as scanning, elimination, and logic reasoning.

  5. What if I need help or get stuck?

    If you need help or get stuck, you can use the hint feature. Simply click on an empty cell and then click on the "Hint" button, after which the correct number in the cell will be filled in automatically.

About Sudoku

Sudoku is a popular number-based puzzle game that originated in Japan and has gained worldwide popularity. The game consists of a 9x9 grid with numbers 1 to 9, where each number can only appear once in each row, column and 3x3 sub-grid. The objective is to fill in the blank squares with the missing numbers.
The puzzle can have multiple solutions and comes in varying levels of difficulty. It can range from easy to challenging and is a great way to improve cognitive skills such as logic and concentration.
The game is played by using deduction and elimination techniques to find the missing numbers. It's a great way to exercise the mind and can also be a fun activity for people of all ages. It can also help in developing problem-solving skills, critical thinking and pattern recognition.
Sudoku has become a widespread game and can be found in many forms, including books, magazines, newspapers, online games and mobile apps. It can also be played in solo or with a group.
In conclusion, Sudoku is a fun and challenging game that can be enjoyed by people of all ages. It is a great way to improve cognitive skills and is widely available in various forms. So, if you're looking for a mental challenge or just a fun way to pass the time, give sudoku a try
Interesting fact
There are 6,670,903,752,021,072,936,960 possible combinations for completing a 9-by-9 Sudoku grid, but only 5,472,730,538 of them really count for different solutions. Needlessly to say, you need a handful of lifetimes to solve all of them.

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