Free Sudoku Games to Download
If you are looking for a fun and challenging way to exercise your brain, relax your mind, and pass the time, you might want to try playing sudoku. Sudoku is a popular number puzzle game that can be played online or offline, on your computer or mobile device. In this article, we will explain what sudoku is, why you should play it, and where you can download free sudoku games to enjoy anytime, anywhere.
What is Sudoku?
Sudoku is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9x9 grid with digits from 1 to 9, so that each row, column, and 3x3 subgrid (also called a box or a region) contains all nine digits exactly once. The grid may have some cells pre-filled with digits, which are called clues or givens. The difficulty of the puzzle depends on how many clues are given and how they are distributed.
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A brief history of Sudoku
The origin of sudoku is not clear, but some sources trace it back to the 18th century Swiss mathematician Leonhard Euler, who invented a similar game called Latin squares. However, the modern version of sudoku was popularized by the Japanese puzzle company Nikoli in the 1980s, under the name Suuji wa dokushin ni kagiru, which means "the digits must be single". The name was later abbreviated to sudoku, which means "single number". The game became a global phenomenon in the early 2000s, when it was introduced to the Western world by newspapers and magazines.
How to play Sudoku
To play sudoku, you need a pencil and paper, or a digital device with a sudoku app or website. You can choose from different levels of difficulty, from easy to expert. Here are the basic steps to solve a sudoku puzzle:
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Look at the grid and scan the rows, columns, and boxes for any empty cells that can be filled with only one possible digit. For example, if a row has eight digits filled and only one empty cell, you can deduce that the missing digit must be the one that is not present in that row. Fill in the empty cell with that digit.
Repeat step 1 for all the rows, columns, and boxes until you cannot find any more cells that can be filled with certainty.
Use logic and elimination to narrow down the possible candidates for the remaining empty cells. For example, if a cell belongs to a row that already has digits 1, 2, 4, 5, 6, 7, and 9, and a column that already has digits 1, 3, 5, 6, 8, and 9, then the only possible candidates for that cell are 2 and 4. You can write these candidates as small notes in the cell.
Repeat step 3 for all the remaining empty cells until you find one that has only one candidate left. Fill in that cell with that candidate.
Repeat steps 3 and 4 until you fill in all the empty cells or reach a dead end.
If you reach a dead end, meaning that you cannot find any more cells that can be filled with certainty or have only one candidate left, you may have made a mistake somewhere along the way. You can use the undo button or erase your notes and start over.
Congratulations! You have solved a sudoku puzzle!
Why Why play Sudoku?
Sudoku is not only a fun and addictive game, but also a great way to improve your mental skills and well-being. Here are some of the benefits of playing sudoku regularly:
Benefits of Sudoku for your brain
Playing sudoku can help you enhance your memory, concentration, logic, and reasoning abilities. Sudoku challenges you to think analytically and strategically, as well as to use trial and error methods. These cognitive skills can help you in various aspects of life, such as learning, problem-solving, decision-making, and planning. Sudoku can also help you prevent or delay the onset of dementia and Alzheimer's disease, as it stimulates your brain cells and keeps them active.
Benefits of Sudoku for your mood
Playing sudoku can also help you relax and reduce stress. Sudoku can act as a form of meditation, as it requires you to focus on the present moment and block out any distractions or worries. Sudoku can also give you a sense of satisfaction and accomplishment, as you complete a puzzle and see your progress. Sudoku can also boost your self-esteem and confidence, as you challenge yourself and improve your skills.
Benefits of Sudoku for your fun
Playing sudoku can also be a source of entertainment and enjoyment. Sudoku can provide you with endless hours of fun, as there are millions of possible puzzles to solve, with different levels of difficulty and complexity. Sudoku can also be a social activity, as you can play with your friends or family, or join online communities of sudoku enthusiasts. Sudoku can also be a hobby that you can pursue at your own pace and convenience, as you can play it anytime, anywhere.
Where to download free Sudoku games?
If you are interested in playing sudoku, you might be wondering where you can find free sudoku games to download on your computer or mobile device. There are many options available online, but here are some of the best ones that we recommend:
Sudoku.com - classic sudoku
Sudoku.com - classic sudoku is one of the most popular and trusted sudoku apps in the market. It offers over 10,000 free sudoku puzzles, with four difficulty levels: easy, medium, hard, and expert. It also has features such as hints, notes, undo, redo, timer, statistics, achievements, and daily challenges. You can also customize the appearance of the app, such as the theme, font size, grid style, and sound effects.
Features of Sudoku.com - classic sudoku
FeatureDescription
HintsYou can use hints to reveal a digit in an empty cell or to check if you have made any mistakes.
NotesYou can use notes to write down the possible candidates for each cell.
Undo/RedoYou can undo or redo your moves if you change your mind or make an error.
TimerYou can see how long it takes you to solve a puzzle.
StatisticsYou can track your performance and progress, such as the number of puzzles solved, the average time spent, the best time achieved, and the accuracy rate.
AchievementsYou can earn badges and trophies for completing certain goals or milestones.
Daily ChallengesYou can participate in daily challenges that test your skills and reward you with coins.
CustomizationYou can change the look and feel of the app according to your preferences.
Pros and cons of Sudoku.com - classic sudoku
ProsCons
- Easy to use and intuitive interface- High-quality graphics and sound effects- Suitable for beginners and experts alike- Regular updates and improvements- Available for both iOS and Android devices- Contains ads that may be annoying or distracting- Requires internet connection to access some features- May consume battery power or data usage
Microsoft Sudoku
Microsoft Sudoku is another excellent sudoku app that offers a variety of game modes, features, and challenges. It has five difficulty levels: easy, medium, hard, expert, and master. It also has six game modes: classic sudoku, irregular sudoku (with different shapes of regions), symbol sudoku (with different symbols instead of digits), wordoku (with letters instead of digits), ice breaker (with frozen cells that need to be thawed), and lightning (with a time limit). It also has features such as hints, notes, undo, redo, eraser, pencil, highlighter, statistics, achievements, and daily challenges. You can also customize the appearance of the app, such as the theme, background, grid style, and sound effects.
Features of Microsoft Sudoku
FeatureDescription
HintsYou can use hints to reveal a digit in an empty cell or to check if you have made any mistakes.
NotesYou can use notes to write down the possible candidates for each cell.
Undo/RedoYou can undo or redo your moves if you change your mind or make an error.
EraserYou can erase any digit or note that you have entered.
PencilYou can switch between pencil mode and pen mode. In pencil mode, you can enter notes in the cells. In pen mode, you can enter digits in the cells.
HighlighterYou can highlight any digit or note that you have entered or selected. This can help you see the patterns and relationships in the grid.
StatisticsYou can track your performance and progress, such as the number of puzzles solved, the average time spent, the best time achieved, and the accuracy rate.
AchievementsYou can earn badges and trophies for completing certain goals or milestones.
Daily ChallengesYou can participate in daily challenges that test your skills and reward you with coins.
CustomizationYou can change the look and feel of the app according to your preferences.
Pros and cons of Microsoft Sudoku
ProsCons
- Variety of game modes and difficulty levels- High-quality graphics and sound effects- Suitable for beginners and experts alike- Regular updates and improvements- Available for both Windows and Android devices- Contains ads that may be annoying or distracting- Requires internet connection to access some features- May consume battery power or data usage- Not available for iOS devices
Sudoku: Number Match Game
Sudoku: Number Match Game is a unique sudoku app that combines sudoku with match-3 gameplay. It has three difficulty levels: easy, medium, and hard. It also has two game modes: classic sudoku and number match. In classic sudoku mode, you can play sudoku as usual. In number match mode, you can swipe adjacent cells to swap their digits and create matches of three or more identical digits. You can also use power-ups such as bombs, magnets, shuffles, and hints to help you clear the grid faster.
Features of Sudoku: Number Match Game
FeatureDescription
Classic Sudoku ModeYou can play sudoku as usual, with hints, notes, undo, redo, timer, statistics, and achievements.
Number Match ModeYou can play sudoku with match-3 gameplay, with power-ups, combos, bonuses, levels, and challenges.
Power-upsYou can use power-ups to help you clear the grid faster. For example, bombs can destroy a group of cells, magnets can attract all cells of a certain digit, shuffles can rearrange all the cells randomly, and hints can reveal a digit in an empty cell.
CombosYou can create combos by making multiple matches in a row. Combos can increase your score and trigger special effects.
BonusesYou can earn bonuses by completing certain tasks or objectives. For example, you can earn a bonus for clearing a row, column, or box; for clearing all cells of a certain digit; or for clearing the grid without using any power-ups.
LevelsYou can progress through different levels of difficulty and complexity. Each level has a different grid size, number of clues, number of power-ups available, and score target.ChallengesYou can face different challenges that add more fun and difficulty to the game. For example, you can face a challenge where some cells are locked and cannot be swapped; where some cells are hidden and need to be revealed; or where some cells are marked and need to be cleared.
Pros and cons of Sudoku: Number Match Game
ProsCons
- Innovative and creative gameplay- High-quality graphics and sound effects- Suitable for beginners and experts alike- Regular updates and improvements- Available for both iOS and Android devices- Contains ads that may be annoying or distracting- Requires internet connection to access some features- May consume battery power or data usage- Not available for Windows devices
Conclusion
Sudoku is a great game that can provide you with many benefits, such as improving your brain power, reducing your stress, and increasing your fun. If you want to play sudoku, you can download free sudoku games from various sources online. We have reviewed three of the best sudoku apps that you can try: Sudoku.com - classic sudoku, Microsoft Sudoku, and Sudoku: Number Match Game. Each of these apps has its own features, pros, and cons, so you can choose the one that suits your preferences and needs. We hope you enjoy playing sudoku and have a wonderful time!
FAQs
Here are some of the frequently asked questions about sudoku and free sudoku games:
Q: How do I know if I have solved a sudoku puzzle correctly?A: You can check if you have solved a sudoku puzzle correctly by scanning the grid for any duplicates or inconsistencies. If each row, column, and box contains all nine digits exactly once, then you have solved the puzzle correctly. You can also use the check or validate feature in some sudoku apps to verify your solution.
Q: How can I improve my sudoku skills?A: You can improve your sudoku skills by practicing regularly, learning new strategies and techniques, and challenging yourself with harder puzzles. You can also read books, articles, blogs, or forums about sudoku to gain more insights and tips from experts and other players.
Q: What are some of the best websites to play sudoku online?A: Some of the best websites to play sudoku online are Web Sudoku ( Sudoku Kingdom ( Daily Sudoku ( and Sudoku Solver ( These websites offer a variety of sudoku puzzles, with different levels of difficulty and features.
Q: What are some of the best books to learn sudoku?A: Some of the best books to learn sudoku are The Times Ultimate Killer Su Doku Book 1 (by The Times Mind Games), Mensa Guide to Solving Sudoku (by Peter Gordon and Frank Longo), The Art of Sudoku (by Thomas Snyder and Wei-Hwa Huang), and The Big Book of Sudoku Puzzles for Kids (by Frank Longo).
Q: What are some of the best movies or shows that feature sudoku?A: Some of the best movies or shows that feature sudoku are The Oxford Murders (a 2008 thriller film starring Elijah Wood and John Hurt), The Simpsons (a 1989-present animated sitcom that has several episodes involving sudoku), Numb3rs (a 2005-2010 crime drama series that has an episode where a serial killer uses sudoku clues), and The Big Bang Theory (a 2007-2019 comedy series that has an episode where Sheldon Cooper plays 3D chess with himself while solving a sudoku puzzle).
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