Free Online Sudoku
When you play our free online sudoku game, there's no need! You can choose easy sudoku, medium sudoku, or even sudoku for experts if you are confident. You can place notes, find sudoku tips, manage the timer and save the sudoku game by clicking the menu bar in the top-right corner. Give the new Sudoku a try by clicking the 'Play Free Online' button above! Play the number game that adds up to fun! Use simple logic to fill in the puzzle's nine rows and nine columns with numerals 1-9. This free sudoku website features hundreds of Easy Sudoku puzzles, Medium Sudoku puzzles, Hard Sudoku puzzles, and Expert Sudoku puzzles! 24/7 Sudoku is sure to keep you playing this great sudoku game all day, every day! Sudoku is a brain challenging number game, played on a 9x9 sudoku board. The sudoku board is broken down into nine 3x3 squares.
Initially activate the 'Auto' option for converting single digit pencil marks into regular entries (only for initial setting, not changing the current mode).
Play unlimited sudoku puzzles online. Four levels from Easy to Evil. Compatible with all browsers, tablets and phones including iPhone, iPad and Android. When you play our free online sudoku game, there's no need! You can choose easy sudoku, medium sudoku, or even sudoku for experts if you are confident. You can place notes, find sudoku tips, manage the timer and save the sudoku game by clicking the menu bar in the top-right corner.
Automatically check if the puzzle is correctly solved.
Show numbers of digits yet to be filled.
When highlighting all related cells, highlights follow your cursor movements. (Otherwise follow your clicks.)
Sudoku
Sudoku is a logic puzzle game. The objective is to fill the 9x9 Sudoku grid with digits 1 to 9 such that each of these 9 digits appears in each row, each column and each 3x3 sub-grid once any only once.
Play Sudoku Online
Don't want to solve the same Sudoku puzzles again and again? Now you no longer need to search the web for new puzzles. Billions of free Sudoku puzzles are offered here online. The chance that you play the same Sudoku puzzle is almost zero.
Sudoku Mobile
Play our billions of Sudoku puzzles on your mobile devices such as tablets and smartphones. If you have a large screen phone, try both versions to see which one is a better fit for your device. We also encourage those mouse-only PC players to try our Sudoku Mobile page that has a 'Cell First' option for entering multiple pencil marks in one cell at a time.
Free Online Sudoku Games
Smart Solver
Free Online Sudoku 9x9
Our new smart solver not only gives the solution for a puzzle, but also explains every step with demonstrations in the grid. You may learn Sudoku solving techniques through examples with numerous puzzles from our database. Try Smart Solver now.