About the Krazydad Website

This website has been offering free puzzles to the public since 2005. My mission is to provide puzzles to under-served groups that need them, including prisoners, pensioners, home-schoolers, hospitals, churches, and classrooms. There are currently about two million individual puzzles on the site, and over sixty unique varieties. You are welcome to download, print and solve as many as you like for your own personal use

I do not grant a blanket permission to republish the puzzles for free (particularly in for-profit publications and ventures), however I will often grant free use permission for small-circulation and non-profit newspapers and newsletters, in exchange for attribution. If you'd like to include a puzzle in your school paper, send me an XL t-shirt with the school logo and remember to include my copyright notices!

If you wish to purchase puzzles for an app, book or newspaper, please contact me at the email address below.

Who or what is a Krazydad?

Krazydad is me, Jim Bumgardner. I'm a programmer / musician / artist / puzzle constructor / teacher with a passion for making software art and software toys.From 2010–2020, I was working at Walt Disney Imagineering, but I am now doing web development for the State of California (currently on their COVID-19 website).

This is my puzzle website, and (occasional) blog. My other websites include WheelOf.com (home of the Wheel of Lunch), WhitneyMusicBox.org (visual music), Joy Of Processing (old Processing tutorials), and jbum.com (personal site).

Have you written anything interesting?

How nice of you to ask! Yes, I have written a few books, papers, tutorials, etudes, and so on. You'll find most of 'em here.

How do I contact you?

Use this handy dandy email address.

Are you the same 'jbum' from Flickr?

Yes. I coauthored the book Flickr Hacks for O'Reilly with Paul Bausch. The book came out February, 2006. I founded the Flickr Hacks group on Flickr, and created the Flickr Colr Pickr, the Flickr Chia Pet, and other cool flickr toys.

Aren't you the guy that made the Whitney Music Box?

Yep. Also the Wheel of Lunch, a few thousand sudoku and kakuro puzzles, and tons of other software toys. I can also make spaghetti.

Are you the same 'jbum' who created The Palace visual chat system?

Yes. I conceived and was principle programmer of The Palace, as well as a co-founder of The Palace, Inc., a pioneer in online communities that drew more than one million users at its peak.

The Palace received numerous honors, including "Best of 1996" by Entertainment Weekly; a Webby Award nomination; "Cool Innovation of the Year" nominee; Chicago SUN-Times' Best Website: 1998; Top 100 Websites of 1998 and # 24 on the Forbes Magazine POV List.

There is more palace-related stuff on my old website: jbum.com

Did I see one of your puzzles somewhere?

Probably. My puzzles have been appearing daily in The New York Times (as "Two Not Touch") since April, 2020. My Sudoku and Sudoku X puzzles are distributed by Andrews McMeel Syndication and appear online and in print. I have sold puzzles to a few other publications, including Games magazine, the Denver Daily News and the San Francisco Daily Post. I've also self-published a number of puzzle books which you can find on Amazon, and I've authored puzzle books for Ulysses Press, and PuzzleWright Press.

How do I follow your every move?

Well aren't you a little creepy? :)

Here's my scrapbook
...a list of my publications
...my Facebook profile
...my Threads profile
...my Mastodon profile
...my old home page
...the RSS feed for my blog. What is this, 2005?
...my flickr stream (also in RSS)
...and my resume.