Sudoku Puzzles

Free printable sudoku puzzles for all levels; easy, medium, hard, and difficult. Our full-page, large-print sudoku puzzles make solving these logic puzzles fun for kids or adults. We’ve even included printable answer key pages to check accuracy and provide quick opportunities to self-correct. Print our PDF Sudoku puzzles today!

Free Sudoku Puzzles

Our free sudoku puzzles are a fun and engaging way to develop key logic and critical thinking skills with your students. Print a variety of puzzles and keep them on hand for early finishers, take-home packets, or any time your students are up for a challenge. You might even offer them as extra credit opportunities in your elementary classroom!

Printable Sudoku Puzzles

To play sudoku, students will need to ensure that every column, every row, and every 3×3 square includes the numbers 1-9. It’s important that they understand that each number can only be listed once! This makes finding the solution difficult when there are multiple possibilities for each box. Tip: If you are looking for Sudoku puzzles for preschoolers, we have a fun back-to-school sudoku puzzle game that is a wonderful first introduction to this amazing game.

Easy Sudoku Puzzles

Here are 9 printable easy sudoku puzzles you can use with younger students. These puzzles are designed at the beginning level, with many puzzle absolutes to make it easy to build confidence and early success. Print these easy sudoku puzzles for kids, or adults who are learning how to solve these unique problems.

Medium Sudoku Puzzles

Once you’ve mastered our easy sudoku puzzles, try your hand at our free printable medium-level sudoku puzzles. These printable pages are designed to add slightly more difficulty by leaving more blank areas for students to fill in.

Hard Sudoku Puzzles

Looking for Sudoku tips? One trick that I’ve taught my own children when they get stuck is to list the possible solutions in the corner of the box. This helps them retain the information, and defeat the overwhelm that can sometimes occur with difficult puzzles.

Expert Sudoku Puzzles aka Evil Killer Sudoku

If your students are sudoku masters and just can’t get enough of these addicting puzzles and games, you can print out our free Expert-level sudoku puzzles. These puzzles are much more difficult and will challenge your students to slowly and methodically work through each square.

How to Play Sudoku

Sudoku is a popular number puzzle game that involves filling a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 subgrids (called “regions” or “boxes”) contains all of the digits from 1 to 9, without any repetition. If you’re new to Sudoku, here’s a step-by-step guide on how to play:

  1. Understand the Grid:

Sudoku consists of a 9×9 grid, divided into nine 3×3 regions.
The puzzle starts with some cells already filled in with numbers (given as clues).

  1. Rules:

Each row must contain all the numbers from 1 to 9 without any repetition.
Each column must also contain all the numbers from 1 to 9 without any repetition.
Each 3×3 region must have all the numbers from 1 to 9 without any repetition.

  1. Start with Easy Puzzles:

If you’re new to Sudoku, begin with puzzles labeled as “easy.”
These puzzles typically have more given numbers, making them simpler to solve.

  1. Fill in the Obvious:

Look for rows, columns, or regions with missing numbers and try to identify where a number is most likely to go based on what’s already in the grid.
Start with the numbers 1 through 9 and fill in any obvious placements.

  1. Use Process of Elimination:

Pay attention to the constraints. If you find a number in one row, column, or region, it can help you eliminate possibilities in other intersecting rows, columns, or regions.

  1. Look for Pairs and Triples:

Identify rows, columns, or regions where only two or three empty cells are left. In such cases, look for numbers that can fit in those cells.

  1. Be Patient and Logical:

Sudoku is a game of logic, not guesswork. Don’t guess numbers; instead, use deductive reasoning to solve the puzzle. Take your time and carefully consider each move.

  1. Check for Mistakes:

Periodically review the grid to ensure you haven’t made any mistakes. Sudoku puzzles have only one unique solution, so if you’ve filled in numbers correctly, you should be able to solve it without contradictions. Write lightly in pencil so you can easily erase and move numbers around.

  1. Practice:

The more you play, the better you’ll get. Start with easier puzzles and gradually move on to more challenging ones as you gain confidence.

  1. Enjoy the Process:

Sudoku is a rewarding and relaxing game. Don’t rush through it; enjoy the satisfaction of each logical deduction and the sense of accomplishment when you complete a puzzle.

Remember that Sudoku puzzles vary in difficulty, so don’t get discouraged if you find some puzzles challenging at first. With practice and patience, you’ll improve your skills and be able to tackle more difficult Sudoku puzzles as well. Find more free printable logic worksheets and puzzles here.

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