SudokuMediumFree PDF
Sudoku — Volume 8
Classic 9×9 Sudoku, medium difficulty
Includes puzzle + answer key — free instant PDF
What is a Sudoku?
Sudoku is a logic-based number placement puzzle. Fill a 9×9 grid so every row, column, and 3×3 box contains the digits 1 through 9 — no repeats.
How to solve it
Begin by finding rows, columns, or boxes with the most given digits. Use elimination to narrow down which digit belongs in each empty cell. Never guess — every puzzle has exactly one logical solution.
Who is this for?
Sudoku suits solvers from age 8 through adult. Easy puzzles work well for beginners. Medium and hard puzzles are ideal for experienced solvers who enjoy a longer challenge.
About this puzzle
Free printable Sudoku puzzle Volume 8 — medium difficulty 9×9 grid. Instant PDF download with answer key.
- Difficulty: Medium
- Format: US Letter PDF with answer key
- Free to download, print, and use
- Commercial use allowed for KDP publishers
Step-by-step: solving the Sudoku — Volume 8
- Print the puzzle and answer key. Download and print the free Sudoku PDF. The 9×9 grid is on page one, the solution on page two.
- Find rows or boxes with the most digits. Scan for any row, column, or 3×3 box that already has six or seven digits. Those are easiest to complete.
- Use elimination, not guessing. For each empty cell, eliminate digits that already appear in its row, column, or 3×3 box. Every puzzle has exactly one logical solution.
- Mark candidate digits in margins. When a cell has two or three possibilities, pencil them lightly in the corner. Updates as you fill more cells.
- Verify with the answer key. Once complete, compare every row, column, and box against the solution page.
Frequently asked questions
How is the puzzle difficulty determined?›
Difficulty is based on how many digits are pre-filled and how many advanced techniques are required to reach the unique solution.
Is there exactly one solution?›
Yes. Every PuzzlePage Sudoku has exactly one logical solution that can be reached through elimination alone — no guessing is ever required.
Is an answer key included?›
Yes. The full solution grid is included on a separate page in the PDF.