Free Online Sudoku - How To Play Sudoku Like Pro

Sudoku

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Free Online Sudoku - How To Play Sudoku Like Pro Click to play
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Sudoku is a game that has been around for many years. It first became popular in the early 1980s, when it was introduced by Japanese puzzle inventor and mathematician Toru Hagiwara.

The objective of Sudoku is to fill a 9×9 grid with digits so that each column, row, and 3×3 section contain only one instance of each number from 1-9.

Players are given a scrambled board with numbers already filled into some cells, which they must use logic to figure out where the missing numbers go on their boards.

This game can be played at any time as there are no timers or set rounds; this means players can play it anywhere without worrying about other people waiting on them!

About Sudoku Game

Sudoku is a single-player puzzle that has been attracting people all over the world. It’s an online game played on a 9*9 grid of numbers.

The player must fill in blanks so that each column, row, and 3×3 region contains all numbers from 1 to 9. Solving it takes talent and practice, but it also comes to a logical conclusion.

Features

  • The Sudoku board is randomly generated and updated each time you start the game.
  • Solve the puzzle by filling in all the numbers from 1 to 9 in the blank cells of the grid.
  • You may choose between 4 difficulty levels: Easy, Medium, Hard and Evil.
  • Easy – only one solution is possible; Medium – multiple solutions are possible; Hard – multiple solutions are logical.
  • You can change the number of clues in the game by choosing between 1 and 5.

Controls

Mouse To navigate & select a cell, drag over it with your mouse cursor. Use this when solving puzzles with a pencil. To select an entire column, row, or 3×3 region, double-click it once you have set the cells that make up the starting boundary of the selection.

Use this when solving puzzles with an eraser because Erase will remove only one solution from the whole puzzle board.

Use the spacebar to toggle between playing with a pencil or eraser.

Developer

This website is the property of SoftKey Creations, a privately held corporation in California. 95% of this game was developed by our team, consisting of highly skilled programmers and artists.

How To Play

The object of the online game is to fill in all grid cells with numbers from 1 to 9 so that each column, row, or 3×3 box contains all numbers exactly once.

Solve a randomly generated Sudoku puzzle by filling in all blanks with digits from 1 to 9. A cell can only contain one number. For example, a 3×3 box containing the sequence 1-2-4 is not allowed.

There are four difficulty levels: Easy, Medium, Hard and Evil.

Easy level has only one solution; Medium level allows multiple solutions but all of them are logical; Hard – multiple solutions but they are also logical; Evil – there may be various solutions to the puzzle, but only one of them is rational.

The trick with Easy and Medium levels is to discover a solution by yourself instead of guessing it.

You can select between 1 and 5 clues at the beginning of each game. Hints help you spot any possible solution on the board quickly but give you fewer places to search for the correct answer. If you think you are not a skilled player or the puzzle is too complex, you should use three clues and choose five otherwise.

To solve a puzzle with a pencil, click on cells that must contain specific numbers. Black cells correspond to empty spaces that can be filled with digits.

To solve a puzzle with an eraser, click on numbers that must not be in the finished grid. Black cells will be filled with white color if you select the correct partition for erasing. Press SPACEBAR to switch between pencil and eraser modes while a game is running.

Levels Of Difficulty

Easy: Only one solution is possible. Warning: Use three or fewer clues when solving Easy level puzzles!

Medium: Multiple solutions are possible, but all of them are logical. Choose between 1 and 5 clues at the beginning of a new game, and make sure you find the correct solution yourself instead of guessing it.

Use three clues if you think that you are not a skilled player, five clues if you are.

Hard: Multiple solutions, but they are logical. Choose between 3 and 5 clues at the beginning of a new game, especially if it is too difficult for your level.

Use three clues if you think you are not a skilled player or the puzzle is too tricky. Five clues if you are. Make sure you find the correct solution yourself instead of guessing it.

Evil: There may be multiple solutions to the puzzle, but only one of them is logical! Choose between 3 and 5 clues at the beginning of a new game, especially if it is too difficult for your level.

Use three clues if you think you are not a skilled player or the puzzle is too tricky. Five clues if you are. Make sure you find the correct solution yourself instead of guessing it.

FAQs

What does Erase button do?

This erases only one solution from the whole puzzle board, but other solutions remain in the puzzle, and pencil/eraser modes will continue to show you them so that you can choose better solutions for your next games.

How do I save my progress?

You don’t. Your progress is automatically saved using Local Storage. It won’t work if you clear Browser Cache. This game uses the js-cookie library, so you can switch to Private Browsing to not be tracked.

What if I want to start over? I’ve made a mistake! Or do I need new fingers for solving the following puzzles?

You can continue from the last level you played by pressing the Reset button or choosing any four difficulty levels. Puzzles are generated randomly every time you start a new game.

How can I find out if the puzzle is solvable at all? I’ve tried all four difficulty levels and also tried giving up after some time – nothing worked!

Conclusion

The sudoku game has been around for decades, but it’s constantly evolving. This newest version of the famous puzzle game features a more complex and varied set of questions, as well as an easy-to-use interface that allows you to create your puzzles or play against friends on the same device.

If you’re looking for something new to do with your downtime, we recommend downloading this app today! You’ll feel comfortable playing games at Frongames because they have ratings and reviews from players like yourself.