10 packs · 20 puzzles each
Hard Sudoku Printables
Hard difficulty printables. Each puzzle requires pointing pairs, box-line reduction, and occasionally X-wing. Pencil mandatory.
Available packs
Pack 01
Download →20 puzzles · PDF
Pack 02
Coming soon
Pack 03
Coming soon
Pack 04
Coming soon
Pack 05
Coming soon
Pack 06
Coming soon
Pack 07
Coming soon
Pack 08
Coming soon
Pack 09
Coming soon
Pack 10
Coming soon
Who these are for
Experienced solvers ready for a real workout.
What's in each PDF
- 20 unique puzzles, all verified single-solution
- Solutions on the final pages
- Black-and-white, printer-friendly
- Compressed under 1 MB so even slow connections download fast
- Free to share and use in classrooms