A few folks have asked if I was affected by yesterdays layoffs at Yahoo! The short answer is no but yes. While everyone can’t help but be affected in some way by layoffs, I was not actually laid off, nor was anyone I work with directly. I’m still slogging away, with far more work than […]

A few times each year – once or twice a semester at Art Center, I get to explain to the uninitiated what a “variable” really is. Not the mysterious x from high school algebra, whose contents are unknown, and which we must decipher — even though there is no tangible reward! No, not an annoying […]

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 […]

Here ya go. More Slitherlink puzzles using the quasi-periodic 5-fold tiling by Sir Roger Penrose. I’ve also added some new Slitherlink puzzles that use Laves tiling (named after Crystallographer Fritz Laves), which are my most challenging Slitherlinks yet. Enjoy!

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 […]