Medium Killer Sudoku Printable
Medium printable Killer Sudoku mixes 2-, 3- and 4-cell cages with only 18 given digits. Forced combinations alone will no longer carry you — you'll need the 45 rule to derive the value of cells where cages cross row, column and box boundaries.
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Generate Medium Killer Puzzles
Given digits:
18 given digits
18 given digits
Avg. solve time:
25–50 min
25–50 min
Cage profile:
Balanced mix of 2–4 cell cages
Balanced mix of 2–4 cell cages
Techniques needed:
4 types
4 types
What to Expect from Medium Cages
Regular Killer players, solvers comfortable with the 45 rule, weekend sessions.
Expect 3- and 4-cell cages whose sums allow several combinations. You will lean on the 45 rule to resolve the cells where cages spill across a box boundary, and on forced combinations for the remaining small cages. The 18 givens act as anchors when combination lists get long.
Printing Tips for Medium Killer
- 2 per page leaves room for combination notes beside each grid.
- Keep a list of cage combinations within arm's reach.
- Cages print as dashed borders — no colour or shading required.
- Print at 100% scale so cage sums stay legible.
Medium Printable Killer Sudoku - Complete Guide
All Printable Killer Levels - At a Glance
Techniques Required - Medium
| # | Technique | Frequency |
|---|---|---|
| 1 | 45 rule | Every puzzle |
| 2 | Forced cage combinations | Most puzzles |
| 3 | Hidden singles | Some puzzles |
| 4 | Cage splitting | Occasionally |
Frequently asked questions
Are these medium Killer puzzles unique? +
Yes. Each grid and its cage layout are generated fresh when you click "Generate Puzzles" — the solution grid is built first, then cages are carved over it, so every cage sum is guaranteed consistent with a valid solution.
How do cages print in black and white? +
Cages are drawn as dashed borders set slightly inside the solid grid lines, with the cage sum in the top-left cell — the same convention used in printed Killer Sudoku books. No colour or shading is needed, so any printer works.
Can I print the solutions too? +
Yes — tick "Include solutions page" before generating. Solutions print on a separate sheet after the puzzles, so you can hand out the puzzle pages and keep the answers.
Where can I learn the techniques for this level? +
Start with the 45 rule and forced cage combinations, then browse the full Killer Sudoku FAQ for innies, outies and starting strategy.
More Killer Sudoku
Play medium Killer online with automatic timing and hints, or switch to classic printable Sudoku without cages.