If you’re interested in the puzzles on this website, and would like to learn more about what goes into making them, you may enjoy the article I wrote for this month’s Mung Being magazine, where I am the resident puzzle constructor.
The article amounts to a FAQ, or IAQ (infrequently asked questions) for the puzzle section. [...]

About 18 months ago, I was contacted by a publisher, Ulysses press, that wanted to put out some Kakuro books, and I provided enough puzzles for three books.
Like most small publishers, Ulysses was blindsided when the Sudoku craze hit, and didn’t manage to get any books in the pipeline before the market was glutted with [...]

Here are some new puzzles I’m working on.
These twelve Slitherlink puzzles use the aperiodic five-fold tiling discovered by Sir Roger Penrose. Not only are the puzzles pretty, but the tiling creates a variety of intersections, which makes the puzzles more interesting.
Download ‘em here…
Thanks to Craig Kaplan for providing the dataset for the tiles!

I’ve been enjoying Slitherlink puzzles lately, and thinking about publishing some variations. Below is a Slitherlink puzzle on a Hexagonal grid I made recently. This tiling makes it more complex in some ways, and easier in others.
More importantly, from my point of view, it’s round. Always a good thing in [...]

Slitherlink is an addictive logic puzzle that was first published by Nikoli in Japan. The puzzle consists of a grid of dots, with some clue cells containing numbers. You connect horizontally or vertically adjacent dots to form a meandering path that forms a single loop or “Slitherlink.” The loop must not have any branches and [...]

I’m working on some new puzzles and thought I’d give you a preview…
For the kids, I’m adding a new collection of mazes in a variety of animal shapes, such as this elephant.
For the non-kids, I’m adding some new logic puzzles, based on my favorites from Nikoli, the Japanese publisher that popularized Sudoku. One of [...]

I was alerted to this group via Laughing Squid.
Faces in Places is an awesome flickr group that collects photosgraphs of those serendipitous faces that pop out at you from the world of inanimate objects.
I made a mosaic of all the images in the group, shown above. You can play with [...]

There are lots of websites that contain collections of crop circles, and I’ve been using a handful of them.
Crop Circle Connector is a community-oriented site which contains an individual page or two for most recent circles. Visitors to the site can file “field reports”, so the site is full of anecdotal information.
These [...]

If you read this blog regularly, you know that a lot of the things I make involve circles. My fascination with circles and radial symmetry has extended to kaleidoscopes, fibonacci spirals, music, card tricks, spinning wheels of lunch, and so on.
You may also know that I am prone to develop short term [...]

My latest project for my employer (Yahoo! Music) was pleasantly unexpected on a number of levels.
It’s an application for Facebook, called Yahoo! Music Videos. If you’re on Facebook, check it out!.
If you’re not on Facebook, check out Facebook! It’s kind of like MySpace, but not as ugly.
UPDATE: The first two reviews [...]