Challenging Sudoku Puzzles to Print

Looking for a more challenging puzzle? This series of difficult Sudoku games is meant for experienced solvers. Can you solve them in 18 minutes or less?

Challenging Printable Sudoku

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 | 113-116 | 117-120 | 121-124 | 125-128 | 129-132 | 133-136 | 137-140

For sudoku tricks, tips and solving strategies, see How to Solve Sudoku Puzzles.

More Sudoku Printables

Extra Easy SuDoku
Easy SuDoku
Intermediate SuDoku
Extra Challenging SoDoku

Puzzle Poll: How often do you do SuDoku Puzzles?

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Math and Number Puzzles

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.

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.

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