Printable Evil 9×9 Sudoku (6 per page)

Print free evil 9×9 sudoku — the hardest level we make, a pure-logic gauntlet with the bare minimum of clues. Evil grids demand the full toolbox of advanced techniques and real persistence, but they never need a guess: there's exactly one answer to earn. Print it instantly or save the PDF for a serious sitting, or play evil Sudoku online if you'd rather solve on screen.

Frequently asked questions

Can I print a batch of sudoku at once?
Yes — this 6-per-page sheet packs six Evil 9×9 grids onto one page, perfect for classrooms or your own puzzle pack. The grids are compact and print to A4 and US Letter.
How many clues does an evil sudoku have?
Evil 9×9 sudoku uses close to the minimum number of clues. No proper sudoku can have fewer than 17 givens — a proven limit — so it leans on advanced techniques, never guessing.
Can I print the answers too?
Yes. Toggle solutions on before you print or save the PDF, and the answer key prints alongside your puzzles. Leave it off for a clean sheet — it's free either way, no sign-up.