Hard Sudoku Puzzles are pretty challenging. At his level you start writing a lot of alternative numbers in the margin. Some of these require much more time to solve compared to Easy and Medium Sudoku. Don't feel bad if you can't solve all of these. You are not alone.
All of our Hard Sudoku Puzzles are not only printable, but also give you an option to view and print the solution. To get started with a random Hard Sudoku, please press Hard Sudoku below.
Below are samples of Hard Sudoku Puzzles that we enjoyed. Maybe you will enjoy them too.
Hard Sudoku Puzzle #12050
Hard Sudoku Puzzle #10659
Hard Sudoku Puzzle #13050
Hard Sudoku Puzzle #14700
Printable Sudoku Puzzles
Looking for a different level Sudoku? Go here for the largest online collection of free printable Sudoku puzzles.