MathDoku
Just like Sudoku with an added arithmetic challenge!
Penny Dell Sudoku
Sudoku from the classic game creator!
Sudoku
Play this classic puzzle game free, no pencil or paper needed!
The Daily Diagonal Sudoku
This fun spin on sudoku is updated everyday.
The Daily Sudoku
A fresh new sudoku puzzle each day. Enjoy!
Sudoku is one of the most popular puzzles on the planet. It's a great way to exercise your brain, look after your mental health, and pass time during work breaks or at home.
Sudoku is a great way to improve your memory and cognitive skills - it's one of the most popular games that require planning, thought, and concentration. Here at Arkadium, we have a premium collection of games that help improve your memory!
You can play Sudoku online and we offer a great selection of free Sudoku games. These range from beginner-level up to more advanced puzzles that are perfect for experienced players.
We've got so many free Sudoku puzzles that you're sure to sharpen your skills while having fun! Pick your puzzle now and start playing one of the world's best strategy games!
Sudoku is a number puzzle that requires you to use logical thinking to fill in blank squares.
The game features a 9x9 grid and 3x3 squares. The aim is for these squares and grids to all contain a number from 1 to 9 using logic to determine which number fits into a specific cell.
Sudoku is one of the most popular puzzles on the planet. One of the main reasons for this is that you can learn how to
Here are four top tips and strategies that will help get any beginner started when they're playing Sudoku.
Sudoku is usually played on a 9x9 grid. Each space needs to be filled with the numbers 1-9. The challenge lies in not repeating any numbers in a row, column or square.
Easier Sudoku puzzles have more numbers added to the grid before you start, making it simpler to solve the challenge.
Sudoku is based on logic, so guessing won't get you very far. In fact, each Sudoku puzzle has only a single solution. For more complex puzzles, advanced solvers often scribble in possible solutions with small numbers so they can refine their solution in less time than a non-documented approach.
Patience is key to Sudoku! If you get stuck or need to take a break, our puzzles will automatically save so you can return right where you left off.
We’ve given you some top tips to help improve your grasp of Sudoku. The next step is to take these lessons and use them when you're playing free Sudoku games.
The origin of Sudoku comes from puzzles printed in French newspapers during the 19th century. These puzzles asked game players to remove numbers from squares, creating the foundations of the game that is played today.
On 19 November 1892, a Paris newspaper included a puzzle featuring a uniform 9x9 grid containing 3x3 box clusters. However, while it shared important characteristics with Sudoku, it differed from Sudoku in a few key ways:
These puzzles remained popular in France until the end of the first World War.
Fast-forward to 1979 and these French puzzles were adapted by a retired American architect, Howard Garns, and published in Dell Magazines as Number Place.
This was then adopted by Japanese company Nikoli in 1984 and published under the name Sūji wa dokushin ni kagiru, before being shortened to Sudoku.
Sudoku is an abbreviation of the Japanese term 数字は独身に限る (Sūji wa dokushin ni kagiru). This means "numbers are single". Single comes from dokushin, which essentially means an "unmarried person" in Japanese.
The abbreviation Sudoku was created by Maki Kaji, the president of Japanese puzzle company Nikoli. The name was trademarked by Nikoli and remains registered to this day.
Whether you play Sudoku online or in a written publication, the game has a simple aim: to fill all the cells in the 9x9 grid and 3x3 squares with numbers from 1 to 9, with a single occurrence included in the rows, columns, and blocks.
The rules to Sudoku are few, but the one rule that cannot be broken is:
The puzzle starts with some boxes pre-filled with a number and others entirely blank. The player's goal is to use logic to slot the correct digits into the blank boxes. Online Sudoku is played by selecting boxes with a mouse and then filling numbers using the keyboard. Some players use their iPad and Android tablets for a larger view with added ease of use. They simply tap the box on their screen and select the number they want to use.
If a Sudoku puzzle has been published correctly then it will have one answer, a fully unique solution.
However, that's not to say that Sudoku can't have two answers, or even multiple solutions. This may happen if you're playing Sudoku online and the puzzle has been left intentionally incomplete (no pre-filled numbers).
Indeed, in the most acute example of an incomplete puzzle, there could be 6,670,903,752,021,072,936,960 answers to the Sudoku game you're playing.
Our free online Sudoku games are all published correctly (with pre-filled numbers).
This means that each puzzle has a logical solution and a single answer.
Playing free Sudoku is one of the most popular online pastimes for people who want to exercise their brains.
It's a game that requires mental agility, the ability to think logically, and a keen sense of prediction.
But the cognitive benefits of free Sudoku games aren't the only interesting things about the game, as you'll see from these insightful Sudoku facts:
You've surely played this newspaper staple. Our free online Sudoku puzzles follow the same traditions, enabling you to play Sudoku 24/7!
We host different difficulty levels, including easy, medium, and hard puzzles. Our comprehensive collection of best-in-class free online Sudoku puzzles is sure to entertain and enthrall you.
Perhaps best of all, our free Sudoku puzzles are updated on a daily basis, so you can come back for a new brain-teasing challenge every day!
Sudoku has evolved from a puzzle featured in 19th-century French newspapers to become one of the most popular online games on the planet. Playing it can make your mind sharper and help to combat mental illnesses.
So, try our free online Sudoku games now and see how quickly you can solve our puzzles.