This collection of free Sudoku puzzles offers something for every level of expertise. Though Sudoku puzzles usually use numbers, they don't require advanced mathematical skills and can be solved using logic alone. These printable Sudoku puzzles come four to a page in five levels of difficulty. Happy puzzling!
Free Sudoku Puzzles to Print and Play
Extra Easy Sudoku Puzzles
If you're new to Sudoku, the aim of the puzzle is to enter a number from 1 through 9 in such a way that each row, column, and region contains only one instance of each number. No need to be a math whiz, Sudoku puzzles are solved using logic and reasoning. These easy-to-solve puzzles are meant for the novice Sudoku solver.
Easy Sudoku Puzzles
These free Sudoku puzzles are intended for those who are new to Sudoku and are just developing their Sudoku solving strategies. Difficulty is not only determined by how many numbers are given but also by which numbers and their placement in the grid.
Medium Sudoku Puzzles
Once you've mastered the easy Sudoku games, move on to these puzzles meant for solvers with more experience with Sudoku.
Challenging Sudoku Puzzles
These printer-friendly Sudoku puzzles are intended for experienced solvers.
Extra Challenging Sudoku Puzzles
For those looking for free Sudoku puzzles at the highest level of difficulty.
Sudoku fans, here's a Sudoku variation called Alphadoku. The aim, as in Sudoku, is to fill in all 81 squares, but letters are used instead of numbers. Once the puzzle is complete, one of the rows or columns will spell out a word or phrase which is clued in the title of each puzzle. These puzzles come in three levels of difficulty: Easy, Medium, and Challenging.
If you need help solving these puzzles, consult the tutorial How to Solve Sudoku Puzzles.
Free Sudoku Puzzles to Play Online
If you're looking for sudoku puzzles to solve on your computer, try these free Sudoku games of varying levels of difficulty, from easy puzzles suitable for children (4x4, 6x6 grids) to extra-challenging Monster Sudoku, with its brain-crunching 12x12 grid. Warning! You risk spending hours solving these addicting sudoku puzzles when you might be doing something else like spending time with your family.
At Web Sudoku you'll find easy, medium, hard and evil Sudoku puzzles that you can play online. The interface is cleanly done and you can generate as many free Sudoku puzzles as you like, but you need to buy the Deluxe version for the solutions. With the deluxe version, for a one-time fee of $14.95 you get the convenience of being able to play your games offline, as well as larger grids, extra-tough sudoku, several variations of the game and more. Register and compare times with others in your age group. Or print your own customized Sudoku ebook with 8 pages of either easy, advanced, kid or combination puzzles.
Jigsaw Sudoku, as its name would imply, is a cross between the jigsaw puzzle and the Sudoku puzzle. Instead of typing in a number, you grab and drag the number squares to their proper places. The colorful interface makes the game fun for younger solvers, who can start with the 4x4 grids, then move on to 6x6 and 9x9 when they're ready for more challenging games. Use the options button to set the size of the grid, the difficulty, and whether to use numbers, letters or symbols.
The Daily Sudoku offers four new puzzles every day: Classic, Monster, Kids and Squiggly (the grid isn't divided into 9 squares, but into irregular blocks). Play these free Sudoku games online or print and solve (requires Adobe Acrobat Reader).
Another source for free daily sudoku puzzles is the Sudoku Page at The New York Times . These puzzles come in Easy, Medium and Difficult versions, so you can select the one which best suits your level of expertise.
If you're looking for the ultimate sudoku challenge, try Samurai Sudoku. These challenging puzzles consist of five overlapping sudoku grids. There's a new puzzle every day and you can also access the archive of past puzzles. Offering the puzzles in seven different languages is a nice touch.
Speed solvers who'd like to compete against other players, might enjoy the Daily Sudoku Competition to see who can solve these tough sudoku puzzles the fastest.