Simon Anthony is cohost of a sudoku YouTube channel called Cracking the Cryptic. In this video he solves a difficult sudoku puzzle with extra constraints. It’s really fun to watch him solve it and get more excited as his sense of wonder grows (“This is like the universe is singing to us,” he says as he begins to realize that it is solvable). I watching the whole 25-minute video.
Here’s a puzzle from Martin Gardner’s Mathematical Games column, which ran for many years in Scientific American. I found it in his low-priced Dover edition anthology, My Best Mathematical and Logic Puzzles. Imagine that you have three boxes, one containing two black marbles, one containing two white marbles, and the third, one black marble and […]
Here’s a fun puzzle with an easy setup that makes for a good stay-at-home time-filler. Like sudoku, see if you can rearrange these cards so that no face or suit repeats itself in any column, row, or diagonal. Watch the video if you need some help.
An old man in Japan owns a vintage topological puzzle, a little monster so difficult to solve that it ended up on Knight Scoop being taken to a physics professor, a professional magician and a chimpanzee in an effort to figure it out. Eventually a ring puzzle master shows how it’s done (10:40 if you’re […]
Six months ago, you probably never expected that you’d have to be making decisions about the performance and fashionability of a face covering as a major new staple of your casual wardrobe…but here we are. As things now stand, it seems likely that face coverings as a means of social distancing will remain a part […]
We’ve all been cooped up in the house for way too long. Even though we’re all trying to be more health-conscious these days, the confinement is likely doing a number on both the physical and psychological health of millions. Young or old, male or female, it’s time for many to take some proactive steps toward […]
At some point in the future, global communications networks will likely reach one standardized protocol that everyone uses. If you look back over the past few decades, there’s a decent chance that when the story of digital networking is finally settled once and for all, it’s Cisco and Cisco-based systems that the globe will be […]