What is Krazydad?
Krazydad is a puzzle website run by Jim Bumgardner since 2005. It offers about two million puzzles in over sixty varieties, from classic and Killer Sudoku to Kakuro, Star Battle, Bridges, Slitherlink, Futoshiki, Battleships and printable mazes.
Most puzzles come as free printable books you can download and print, and many can also be played online with tools to check your answer, show errors and switch to dark mode. A Daily Puzzles page posts three new puzzles every day that get bigger and harder as the week goes on. Jim also makes the Two Not Touch puzzle that has run in The New York Times since 2020.
Main Features
- Over sixty puzzle types and about two million puzzles
- Free printable puzzle books for personal, school and church use
- Many puzzles playable online in the browser
- Check answer and reveal errors buttons
- Three new Daily Puzzles every day
- Kid-friendly sets such as Kidoku, Pixidoku and mazes
- Tutorials for harder types like Killer Sudoku
- Dark mode in the online player
How to Get Started with Krazydad
- Open krazydad.com.
- Pick a puzzle type from the list.
- Choose play online, or download a printable book.
- Pick a size or difficulty and start solving.
- Come back to the Daily Puzzles page for three new ones each day.
Krazydad Pricing
Krazydad is free, with no paid plan. The site is supported by donations, and Jim Bumgardner also sells separate puzzle books on Amazon.
Who Should Use It?
- Sudoku and logic puzzle fans
- Teachers and home-schoolers who need printable puzzles
- Parents looking for puzzles for kids
- Hospitals, care homes and groups that hand out puzzles
- Anyone who prefers solving with pencil and paper
Krazydad Alternatives
- Sudoku.com is a free site for playing Sudoku in your browser.
- Murdle is a daily logic puzzle where you solve a small murder mystery.
- Puzzmo is a daily puzzle site with new games each day.
Frequently Asked Questions
Is Krazydad free?
Yes. All the printable and online puzzles are free. Donations are welcome but unlock nothing extra.
Can I print the puzzles?
Yes. You can download and print as many as you like for personal, school, church, hospital or other non-commercial use.
Can I play online?
Yes. Many puzzle types, such as Sudoku, Kakuro, Bridges and Star Battle, can be played in the browser.
Who makes Krazydad?
Jim Bumgardner, a programmer and puzzle constructor who writes the software that makes most of the puzzles.
Are there daily puzzles?
Yes. Three new puzzles go up every day at midnight Pacific time.