• Daily Sudoku
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    Daily Sudoku
    Played 54321 times

    You can try out three different versions of Sudoku every day in this online game. Each puzzle is set to a different level of difficulty. See if you can conquer the easy mode before you move on to the medium or hard ones.

  • Sudoku 2
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    Sudoku 2
    Played 22448 times

    Fill the grid with digits from 1 to 9.

  • Sudoku Classic
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    Sudoku Classic
    Played 20128 times

    Take on this version of the classic puzzle game from Japan. How quickly can you fill in the 9 x 9 grid with numbers?

  • Daily Sudoku
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    Daily Sudoku
    Played 18374 times

    Put your sudoku skills to the test with this series of challenging puzzles.

  • Beach Sudoku
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    Beach Sudoku
    Played 15707 times

    As if Sudoku wasn’t hard enough, now you have to race against the clock in this beach themed puzzle game!

  • Ultimate Sudoku
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    Ultimate Sudoku
    Played 13263 times
  • Killer Sudoku
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    Killer Sudoku
    Played 5811 times

    Starting with a blank board, the cages are your key to mastering this killer Sudoku twist.

  • Sudoku Hawaii
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    Sudoku Hawaii
    Played 4503 times

    Travel to the enchanted tropical isles for a few rounds of challenging puzzles.

  • FunGamePlay Sudoku
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    FunGamePlay Sudoku
    Played 3551 times

    How fast can you crunch these numbers? Try out the easy mode in this online version of the classic puzzle game. If you’re looking for more of a challenge, you can also give the hard mode a shot.

  • Sudoku Puzzle
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    Sudoku Puzzle
    Played 3202 times

    The classic puzzle game returns in this challenging and fun online version. There’s four different modes of difficulty that are great for everyone from beginners to players who have been enjoying Sudoku for years.

  • Binary Bears
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    Binary Bears
    Played 3202 times

    Are you a fan of Sudoku games? If so, then you’ll love this binary code game! Fill the grid up with 0s and 1s!

  • Sudoku Challenge
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    Sudoku Challenge
    Played 3188 times

    Give this exciting mobile version of the classic puzzle game a go. Can you handle the challenge mode? What about expert mode or hard mode?

  • Desert Sudoku
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    Desert Sudoku
    Played 2292 times

    Head to the sands of the Sahara and find out if you can handle each one of these challenging Sudoku puzzles. Will you match up all of the numbers in this online game?

  • Puzzle World
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    Puzzle World
    Played 2285 times

    You can can try out three different types of puzzles and dozens of levels in this challenging online game. Give your Sudoku skills a workout or attempt to connect squares without their paths overlapping. You can also try to help a colored square find all the exits in a fun escape game.

  • Daily Sudoku Puzzle
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    Daily Sudoku Puzzle
    Played 1735 times

    You can try out a different puzzle every day in this online version of Sudoku. There’s also daily tips that will help you improve your skills.

  • Sudoku Village
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    Sudoku Village
    Played 1700 times

    Test your Sudoku skills on a 9x9 grid with some numbers already filled in. Solve the puzzle by adding numbers into the empty squares that would allow each number to appear once in every row, column and 3x3 square. Sudoku Village has a great theme of calmness with 3 levels of difficulty to choose from and unlimited amount of puzzles to solve.

  • Sudoku: Classic
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    Sudoku: Classic
    Played 1587 times

    Give your sudoku skills a workout with this fun and challenging version of the classic puzzle game. Will you be able to fill in each grid with all the numbers before there’s no more time left?

  • Pixo Cross
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    Pixo Cross
    Played 1350 times

    Can you master this online version of sudoku? Put your puzzle skills to the test and see if you can insert all of the numbers in the correct order.

  • Daily Kakuro
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    Daily Kakuro
    Played 1286 times

    Can you handle the challenges that are waiting for you in this online version of Kakuro? Put your math and logic skills to the test with its daily puzzles.

  • Sudoku Original
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    Sudoku Original
    Played 986 times

    Fill in the grid so that every row/column/3x3 box contains the digits 1 through 9.

  • Sudoku Daily
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    Sudoku Daily
    Played 815 times

    You can try to complete a brand new puzzle every day in this challenging online version of the classic game. But will you get all of the numbers to fit into the correct spots without any duplicates?

  • Quick Sudoku
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    Quick Sudoku
    Played 783 times

    Three challenging levels of gameplay are waiting for you in this online version of Sudoku. You’ll need to play quickly. The clock is ticking!

  • Irregular Sudoku
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    Irregular Sudoku
    Played 702 times

    The Sudoku challenge takes a new shape…

  • Sudoku HTML5
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    Sudoku HTML5
    Played 683 times

    Love Sudoku? Test your skills in this classic brain-teasing puzzle! Suitable for both beginners and masters, there are loads of options to choose from in this free online game!

  • Smart Sudoku
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    Smart Sudoku
    Played 655 times

    There’s two different difficulty levels in this version of the classic puzzle game. It’s perfect for beginners and more experienced players alike.

  • Daily Frog Sudoku
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    Daily Frog Sudoku
    Played 624 times

    Puzzles are this frog’s favorite thing in the whole world, and he especially loves Sudoku. Can you solve all the puzzles he’s created for you in this online version of the classic game? You can try out a new one every day, and there’s three levels of difficulty that will really put your skills to the test.

  • Sudoku Deluxe
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    Sudoku Deluxe
    Played 618 times

    Give your Sudoku skills a workout with this mobile game. Add up the numbers and see if you can conquer each puzzle before time runs out.

  • Sum Sudoku
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    Sum Sudoku
    Played 587 times

    A challenging twist injects extra complexity to classic sudoku.

  • Sushi Sudoku
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    Sushi Sudoku
    Played 520 times

    Play Sudoku with a broad sushi assortment!

  • The Daily Diagonal Sudoku
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    The Daily Diagonal Sudoku
    Played 508 times

    There’s a different Sudoku puzzle that will really test your skills every day that you play this online version of the mathematical game. Can you put all the numbers in the correct spots in each of its daily challenges?

  • Mega Sudoku
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    Mega Sudoku
    Played 483 times

    A Sudoku with up to 12 digits presents a whole new challenge!

  • Samurai Sudoku
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    Samurai Sudoku
    Played 397 times

    Dozens of challenges for every skill level await in this extreme version of Sudoku!

  • Greater Than Sudoku
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    Greater Than Sudoku
    Played 311 times

    Can you handle this challenging version of the classic puzzle game?

  • Bermuda Triangles
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    Bermuda Triangles
    Played 259 times

    Sudoku-style gameplay takes a vacation from Squaresville.

  • Daily Trees And Tents
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    Daily Trees And Tents
    Played 226 times

    Things are getting crazy down at this campground. Can you place the tents in the correct spots next to the trees in this challenging puzzle game?

  • Olko
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    Olko
    Played 201 times

    Game name: Olko Developer name: Sergey Sizkov (In-Finity) Genre: Mahjong Engine: Flash Branding: Zibbo Melanie

Prove Your Puzzle Solver Qualities

Also known as Number Place, Japanese Sudoku ("single-digit") games are a worldwide phenomenon. Although these types of number puzzles were featured in French newspapers as far back as the 19th century, they've gone seriously viral in our more modern age thanks to the Japanese puzzle company who, in the 1960s, created the form the world over knows and loves today. This is because it offers the ultimate test of logic based on the most simple set of rules imaginable: fill a 9x9 grid made up of nine grids of 3x3 boxes. In each mini-grid, fill in the digits 1-9 so that there is only one in each box – and so that each appears in its total row and line of the total bigger grid only once. (If that doesn't sound simple, just open a game and you'll immediately see this for yourself.) You'll get a few numbers to get started, each combination creating a totally new game – which means endless gameplay opportunities!

Web Sudoku is even better than paper Sudoku. When you play Sudoku online, you don't have to keep track of the boxes or do the messy pen or pencil work yourself – scratching out and rewriting as your guesses and number placements evolve. You can focus on the pure gameplay, the fun mental exercise of these Sudoku puzzles. Hoorah for the Age of Computers!

Plus, our free Sudoku games often come with themes, like Sunset Sudoku, Sudoku Hawaii, or Sushi Sudoku, for a new layer of fun to go with the brain-bending puzzles you love. The game can even take a totally different shape all together, literally, in games like Bermuda Triangles. Start exploring and flex that mental muscle!