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Medium Sudoku Puzzles: free printable sample sheet

Sudoku puzzles

Medium Sudoku Puzzles

Fewer clues than easy puzzles, so each next move takes more looking, yet every grid still yields to careful scanning.

Free printable PDF

Download this sheet and its answer key as shown, and print it at home or school. No account needed.

Customize in the editor

Want different puzzles? Dealing and previewing new puzzles is free; printing and downloading your custom sheets come with Pro. See plans

Grid
9×9
Difficulty
Medium
Puzzles per page
2
Solutions
Included
Paper
US Letter or A4

About this worksheet

Medium puzzles remove as many clues as they can while staying solvable by the basic moves alone. Nothing more advanced is ever needed, but the next move is often hiding in a single row or box, so these reward patient, systematic scanning.

If you get stuck, go digit by digit through each box, then row by row. Writing small candidate numbers in the corners of empty cells also helps on these grids.

  1. 01

    One solution, every time

    Each puzzle is checked to have exactly one solution, so it can always be finished by reasoning, never by guessing.

  2. 02

    Solutions included

    The sheet ends with a solutions page, with the filled-in digits in red so they stand out from the clues.

  3. 03

    New puzzles in one click

    Open the sheet in the editor to deal a fresh set at the same size and difficulty whenever you need another page.

Questions

How is the difficulty decided?
By the solving techniques a puzzle needs, not just by how many clues it has. Easy and medium puzzles can be finished by finding the one digit that fits a cell or the one cell where a digit fits; easy puzzles also keep extra clues. Hard puzzles need at least one step beyond that, such as spotting a pair of cells that share the same two candidates.
Do I need to guess on medium puzzles?
No. Every puzzle here can be finished by logic alone, using only the two basic moves. If a puzzle seems stuck, there is a cell or digit with only one option that has not been spotted yet.
Are these medium sudoku puzzles free?
Yes. The sample sheet on this page, with its solutions, is a free PDF in US Letter or A4, no account needed. Dealing and previewing new puzzles is free too; printing and downloading custom sheets come with Pro, which also removes the preview watermark.