I found this puzzle in a book I've had since I was a kid:
Simply put, your task is to draw the figure at the right without crossing a line, without taking your pencil from the paper and without retracing a line.
The book is called Merlin's Puzzler. It's out of print, but used copies are pretty cheap.
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 […]
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 […]
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.
Popping a new battery in a smoke detector or adding salt to your water softener are easy fixes. But if you run into trouble or a necessary repair in a cramped, tight place, sometimes with no obvious fix or easy access, it can be a pretty frustrating exercise. Since flying blind is the absolute worst, […]
Firing up the engines each morning and attacking the day with gusto and purpose can feel like a mighty tall order sometimes. We’ve all been there. But on those sluggish, why-don’t-I-just-stay-here-in-bed-all-day kinda days, it might just take a rational, calming, reassuring nudge to make it happen. No matter what it takes to keep you motivated […]
You may not realize it, but one of the fastest-growing employee benefits over the past several years is one that’s keeping thousands of workers feeling happier and healthier. Back in 2013, only 13 percent of employers were willing to provide or subsidize standing desks for their workers, but by 2019, that number had exploded to […]