Free Online Sudoku

Sudoku is the latest puzzle craze that is sweeping the world. You can find Sudoku puzzles in newspapers, magazines and online. Why is Sudoku so popular? Perhaps it's the fact that every puzzle has a unique solution that can be found with simple logic and reason or maybe it's the fact that there are puzzles available for all skill levels. Researchers have even found that playing Sudoku helps keep your brain active, young and reduces the risk of memory problems.

Playing Sudoku is simple and fun. Each Sudoku board is 9x9 with 9 3x3 sub-squares inside the larger square. The goal of the game is to place the numbers 1-9 in row, column and sub-square. Sounds simple right? The catch is that each number can only appear once in each row, column and sub-square. For more detailed rules please visit our Rules Page.
Each Sudoku has a unique solution that can be reached logically without guessing. Enter digits from 1 to 9 into the blank spaces. Every row must contain one of each digit. So must every column, as must every 3x3 square.

What makes Sudokushark.com so special? Well we've taken Sudoku to the next level. Not only can you challenge yourself by trying to beat your best time for each different skill level, but you can now challenge others for a position on the Sudoku Top Ten list. But that is not all that we have to offer. Sudokushark.com allows you to join a group or as we call them Clans and challenge other members of your clan for the top positions in the Clan. Sudokushark.com even has a Clans Leaderboard that will allow you to see how your clan is doing against other clans. We have much more information on clans on our Clans Page.

As you can see Sudokushark.com has so much more to offer than just simple Sudoku. Be sure to invite your friends to play some online Sudoku.