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Sudoku Classic

Sudoku Classic

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Learning English: Word Connect

Learning English: Word Connect

Fervent Frog Escape

Fervent Frog Escape

Words Family

Words Family

Fit Em All

Fit Em All

Public Park Differences

Public Park Differences

Sock Flow

Sock Flow

Corsair Girl Escape

Corsair Girl Escape

Number Puzzle

Number Puzzle

Draw and Guess

Draw and Guess

Diver Escape

Diver Escape

Merge the Numbers

Merge the Numbers

Charge Now

Charge Now

November Rain Match 3

November Rain Match 3

Christmas Five Differences

Christmas Five Differences

Farm Hero

Farm Hero

Word Adventures

Word Adventures

Numbers Challenge

Numbers Challenge

Antique Village Escape Episode

Antique Village Escape Episode

Hidden Investigation: Who Did It?

Hidden Investigation: Who Did It?

Paper Blocks Hexa

Paper Blocks Hexa

Mafia Poker

Mafia Poker

Banana Poker

Banana Poker

Draw One Line

Draw One Line

Join Blocks

Join Blocks

Sort It 3D

Sort It 3D

Sliding Escape

Sliding Escape

Abandoned Forest House

Abandoned Forest House

Vintage Sports Car Difference

Vintage Sports Car Difference

Bomb It 5

Bomb It 5

Beaver Bomber

Beaver Bomber

Pull the Pin

Pull the Pin

Pink

Pink

Creepy Basement Escape Episode

Creepy Basement Escape Episode

Pixel Soldier Memory

Pixel Soldier Memory

Spot the Differences

Spot the Differences

Tower Loot

Tower Loot

Water Sort Puzzle 2

Water Sort Puzzle 2

Find Cat 2

Find Cat 2

Crazy Shooters 2

Crazy Shooters 2

Oddbods Monster Truck Challenge

Oddbods Monster Truck Challenge

Gate Rusher Online

Gate Rusher Online

King Of Strings

King Of Strings

Block World

Block World

Casual Checkers

Casual Checkers

Cricket Hero

Cricket Hero

Baby Hazel Preschool Picnic

Baby Hazel Preschool Picnic

Clash of Vikings

Clash of Vikings

Mine Sweeper

Mine Sweeper

Worms.io Multiplayer

Worms.io Multiplayer

Vex 6

Vex 6
Hot Games
Decoration Label

Editor's Choice

Pool Mania

Pool Mania

Traffic Control

Traffic Control

Top Guns IO

Top Guns IO

Hello Kitty and Friends Finder

Hello Kitty and Friends Finder

Bridge Legends Online

Bridge Legends Online

Om Nom Connect Classic

Om Nom Connect Classic

Fireboy & Watergirl 6: Fairy Tales

Fireboy & Watergirl 6: Fairy Tales

Guns & Glory Heroes

Guns & Glory Heroes

Brawlhalla Grand Slam

Brawlhalla Grand Slam

Home Appliance: Insurrection

Home Appliance: Insurrection

Domino Battle

Domino Battle

TrackMania Blitz

TrackMania Blitz

Year Round Fashionista Curly

Year Round Fashionista Curly
Sudoku Classic
4.2
Rating
57 votes

It’s 9 Columns, Rows, and Boxes – You Know What to Do!

We’ve got the completely stripped-down experience for any of those nostalgic sudoku players out there with this simple and addictive Sudoku Classic online game. It’s black and white, free, and guaranteed to keep your brain working. Never played before? Here’s how it works: you need to fill in every row, column, and 9 x 9 box in this game with the numbers 1-9, never repeating a number. The harder the puzzle, the fewer numbers you start with. Got it? 

Sudoku Classic Is Boredom’s Worst Enemy

If there’s another unblocked game you can play for hours and hours without getting bored, we don’t know it. This epic game is like a new version every time you play, since each puzzle presents you with different starting numbers. If you want, you can ignore the timer and just relax, but if you’re competitive, try to beat our record of 6 minutes. It’s Sudoku Classic time, numbers whiz!