Free Sudoku - Extra Challenging Sudoku Puzzles to Print

If you're looking for print-friendly Sudoku puzzles at the highest level of difficulty, you've come to the right place. The puzzles come four to a page. Happy puzzling!

Extra Challenging Sudoku | Play Sudoku Online

1-4 | 5-8 | 9-12 | 13-16 | 17-20 | 21-24 | 25-28 | 29-32 | 33-36 | 37-40 | 41-44 | 45-48 | 49-52 | 53-56 | 57-60 | 61-64 | 65-68 | 69-72 | 73-76 | 77-80 | 81-84 | 85-88 | 89-92 | 93-96 | 97-100 | 101-104 | 105-108 | 109-112

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Mathematical puzzles, prime numbers, cross sums, memes, Sudoku, Kakoru, logic puzzles, brainteasers and more for students trying to improve their math skills.

Futoshiki Puzzles
Futoshiki, also known as Hutosiki, is a new type of Japanese number puzzle which, like Sudoku, requires logic rather than mathematical computations to solve.

Free Kakuro Puzzles
Also known as cross-sums, the objective of Kakuro is to fill in the numbers so that every row and column adds up to the corresponding numerical indicator.

Sudoku Puzzle Books
Whether you're looking for easy sodoku puzzles for beginners, fiendishly difficult ones for expert solvers, or anything in-between, our selection of books is bound to have something suitable.

For strategies on how to solve Soduko, see the tutorial How to Solve Sudoku puzzles.

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