Free Sudoku Puzzles

Here are thousands of free Sudoku puzzles to print. Each booklet of printable Sudoku contains eight puzzles, instructions, hints and answers. If you like these puzzles, check out my other puzzles too!

Want to save some trees? Try my Interactive Sudoku, an online version of these puzzles that works on your browser or iPad.

Krazydad Sudokus are also available in a daily puzzle (for print or online).

Sudoku

Play Sudoku online from easy to evil. Web Sudoku also supplies Sudoku puzzles for newspapers, magazines, Sudoku books and websites.

  • Yet, these sudoku puzzles no longer have superfluous clues, and you must work harder for your Sudoku win. Sudoku is a fun game, popular with all ages from kids to adults, as it employs simple puzzle game logic. The goal is to enter the numbers 1 through 9 into the sudoku board in every 3x3 square, row and column only once. This Medium Sudoku.
  • All of the puzzles are meant to be solved on paper with a pen or pencil. There are two puzzles on each web page. Select a pair of puzzles and they will open in a new browser window. It will fit nicely on a single sheet of 8.5' x 11' paper. The rules to play Sudoku are quite simple.

Here's a blank sudoku grid in case you need to start over.

Krazydad Ephemeral Sudoku is my new Sudoku Quarterly, available on Amazon.

Each title will be available for just three months, and then will fade away, like tears in rain.

Your purchase will help support this free website.

Thank you!

These are the easiest sudoku puzzles I offer. If you are new to Sudoku puzzles, try some of these first.
These puzzles are midway between my Easy and Intermediate puzzles, and contain just a few redundant clues.
These sudoku puzzles can be solved using simple logic, but unlike the Easy & Novice puzzles, they contain no redundant clues.

Free Sudoku Games

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These puzzles may contain a few squares whose solution is not immediately obvious.
Tough sudoku require more advanced logic such as X-Wing and Swordfish (click here to read more about these advanced sudoku strategies). I provide an extra scratch area on these puzzles for working out the solution.
Super Tough puzzles may require a little guesswork, or even more advanced strategies (click here to read about advanced sudoku strategy) to complete the puzzle. I provide an extra scratch area on these puzzles for working out the solution.
Insane sudoku are the hardest sudoku I offer. They cannot be solved without making guesses. I provide an extra scratch area on these puzzles for working out the solution, but it won't be much help!

My printable puzzles contain a page of hints in addition to a page of answers.

The hints are puzzle grids that contain numbers showing the order inwhich the squares were solved by my computer. Although this is not necessarily the orderyou would solve the puzzle, it's probably in the neighborhood.

Follow the numbered squares in order 1,2,3,4,5... until you find a square you haven'tsolved yet. This square (or the one or two immediately after it) isa good candidate to solve next.

All puzzles ยฉ2005-2021 KrazyDad.com. Feel free to reproduce the puzzles for personal, church, school, hospital or institutional use. Please do not use my puzzles in for-profit publications without my permission. If you need free puzzles for your small circulation newspaper, or you would like to purchase puzzles for a book, periodical, app or website, contact me at dad@krazydad.com.

Initially activate the 'Auto' option for converting single digit pencil marks into regular entries (only for initial setting, not changing the current mode).

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.

Free Sudoku Puzzles 9/9

Sudoku Mobile

Free Sudoku Puzzles

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.

Printable Sudoku Puzzles Free 16x16

Smart Solver

Free Sudoku Puzzles 247

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.