Classic printable Sudoku in multiple grid sizes and difficulty levels.
Printable puzzle guide
Free Printable Puzzle PDFs
KrazyDad provides thousands of free printable puzzle PDFs across dozens of puzzle types.
Most printable collections are organized as downloadable books, with many puzzles per PDF and answers in the back.
These collections are designed for people who want to print puzzles once and solve them offline at home, at school, or on the road.
Popular printable destinations
Sudoku
Classic printable Sudoku with multiple sizes and a wide spread of difficulties.
Two Not Touch / Star Battle
Printable star-placement logic puzzles, including the New York Times variant.
Killer Sudoku
Printable books for solvers who want Sudoku mixed with arithmetic cages.
Mazes for kids
Friendly printable mazes for classrooms, family trips, and waiting rooms.
Featured printable puzzle types
| Puzzle Type | Printable Format | Difficulty Range |
|---|---|---|
| Sudoku | Printable PDF books | Easy to Insane |
| Killer Sudoku | Printable PDF books | Medium to Hard |
| Jigsaw Sudoku | Printable PDF books | Easy to Hard |
| Star Battle / Two Not Touch | Printable PDF books | 1-Star to Diabolical |
| Kakuro | Printable PDF books | Beginner to Hard |
| Suguru | Printable PDF books | Easy to Hard |
| Slitherlink | Printable PDF books | Beginner to Advanced |
| Bridges | Printable PDF books | Beginner to Advanced |
| Mazes | Printable PDF books | Beginner |
| Kidoku / Pixidoku | Printable PDF books | Beginner |
What you will find here
KrazyDad focuses on pencil-and-paper puzzle solving. The site includes classic number puzzles, spatial reasoning puzzles, loop puzzles, and kid-friendly printable collections.
Some collections also have interactive versions, but the printable PDFs remain the core offering for people who prefer solving away from a screen.
Common reasons people print these puzzles
- Airplane and train travel.
- Road trips and vacations.
- Classroom and homeschool activities.
- Waiting rooms, libraries, and senior centers.
- Quiet offline puzzle sessions at home.
Puzzle explainers and solving guides
What is Star Battle?
A concise explanation of the rules, alternate names, and appeal of Star Battle puzzles.
How to solve Star Battle
Practical starting strategies for spotting forced stars and blocked cells.
What is Killer Sudoku?
An overview of the hybrid Sudoku-plus-arithmetic format and what makes it distinctive.
Browse printable puzzle collections
Sudoku with arithmetic cages for solvers who want a harder hybrid challenge.
Irregular-region Sudoku books that add a fresh spatial twist to the familiar rules.
Diagonal Sudoku collections where both main diagonals also contain all digits.
Printable object-placement puzzles with simple rules and satisfying logic.
The New York Times variant of Star Battle, with extra resources and printable books.
Cross-sums puzzles that combine arithmetic with crossword-style deduction.
Calcudoku-style puzzles with arithmetic clues and small, approachable grids.
Compact number-placement puzzles with easy rules that scale up in difficulty.
A printable mash-up of Sudoku and Minesweeper logic.
Hashi-style printable puzzles about connecting islands into a single network.
Binary logic puzzles with clean rules and a fast solving rhythm.
Draw a single loop using numeric clues in these printable logic grids.
Non-square and highly visual Slitherlink variations for experienced solvers.
Route-building puzzles about guiding a train from start to finish.
Fleet-finding puzzles with classic row-and-column deduction.
Latin-square logic puzzles with greater-than and less-than constraints.
Place numbers so matching values stay far enough apart across the grid.
Loop-drawing puzzles built from black and white circle clues.
Symmetry puzzles, also known as Tentai Show, with elegant visual logic.
Printable mazes for kids, classrooms, waiting rooms, and casual travel solving.
Kid-sized Sudoku books designed for beginners and younger solvers.
Picture-based Sudoku for kids and visual learners.
Large overlapping Sudoku layouts for solvers who want longer sessions.