Games & puzzles

Hard Sudoku Puzzles

About 26 starting numbers and plenty of room for pencil marks, two to a page. Expect to need notes for these.

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4 pages
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Sudoku#187647258341821693576476984#269382315456147958537647946papercabinet.com

In the print window, set scale to 100% (or "Actual size") and margins to "None". Want a file instead? Press PDF to download one.

Want to start from scratch? The printable sudoku puzzles has every setting.

Templates

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How it works

Three steps to a printed page

  1. Pick easy, medium or hard.

  2. Choose how many puzzles you want and how many fit on a page.

  3. Press Print. Answer pages come last so you can staple them separately.

Help

Frequently Asked Questions

What are pencil marks in sudoku?

Small numbers in the corner of a square listing the digits that could still go there. Hard puzzles usually need them, which is why these print two to a page.

Do the sudoku puzzles have answer keys?

Yes. With "Add answer pages" on, the solutions print after the puzzles, with the starting numbers in bold.

Can I print large print sudoku?

Yes. Choose 1 puzzle per page and each grid fills the sheet, with numbers about twice the usual size.

Does every puzzle have only one solution?

Yes. Each puzzle is solved by computer before it reaches you, and any that could have two answers are rejected.