1,000 puzzles. One book. Zero squinting.
1000 Sudoku Vol. 4 – Hard is the sharper step in the 1000 Sudoku Series. Inside, you’ll find 1,000 hard-level puzzles with 20+ pt numbers. It delivers the same readability as a full-size Large Print edition — without ever asking you to squint, even when the grid asks everything else of you.
Hard is where real deduction begins. Whether you’ve finished Volume 3 or you’re ready to push your logic further from day one — this is your next book. So pick up your pencil and go deeper.
What’s Inside 1000 Sudoku Hard
- 1,000 Hard Sudoku puzzles — built for experienced solvers ready for richer deduction patterns
- 20+ pt numbers on clear, high-contrast grids
- 9 puzzles per page — compact and easy to carry, but never cramped
- The fourth step in the journey — Very Easy → Easy → Medium → Hard → Very Hard → Extreme
- Travel-ready format — fits in your bag, carry-on, or bedside drawer
- Full answer key at the back of the book
Keep the Journey Going
Whether you solve on your morning train or as part of your evening wind-down, this book fits your life. So you get a year’s worth of serious, screen-free brain training in one portable volume.
It also makes a thoughtful gift for any seasoned Sudoku solver looking for a real challenge.
Push your logic further. Plus, Volume 5 (Very Hard) is ready when you are.
Explore the full 1000 Sudoku Series in the Open Page Studio catalog.