Occasionally, I get mail from fans of the site who need help with a puzzle. I’ve decided to devote the next few blog entries to puzzle solving techniques. If you want help with a particular Krazydad puzzle (especially puzzles that are easier than “Super Tough”), drop me a note, and I’ll troubleshoot your problem too! […]

I know from your correspondence that many of you download my puzzles to keep your brains active and sharp. If this describes you, I think you’ll like the new book by Joshua Foer called Moonwalking with Einstein: The Art and Science of Remembering Everything [ Self disclosure: I should mention that I once lunched with […]

Fans of my variety slitherlinks will enjoy these two new sets of puzzles, based on two different Rhombille tilings supplied by reader Lars Huttar. The first set (shown here) is a basic rhombille tiling with intersections containing 3 and 6 vertices. The second set contains intersections of 3, 4 and 5 vertices. Rhombille Set #1 […]

Here’s another crossfigure puzzle from one of our readers. This puzzle is by Paul-Olivier Dehaye, of the mathematics department at the Swiss Federal Institute of Technology. Thanks Paul! Download the PDF Do you have another good original puzzle to share? Let’s see it!