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.
Game engines aren’t just the lifeblood of the video game industry. They may soon be the lifeblood of Hollywood. Since emerging in the late ’90s, the Unreal game engine has quickly become one of the world’s foremost tools for game creators. Now, Disney’s hit Star Wars spinoff series The Mandalorian is using Unreal as well. […]
Apple AirPods have become the default earbuds beloved by millions. Unfortunately, they also cost $159, so it’s no surprise that since they were first introduced in 2016, companies have battled to produce comparable headphones at a lower price. The UK-designed and engineered Veho STIX true wireless earphones may have cracked that particular problem, striking a […]
Instagram isn’t just for tweens and foodies. In fact, the image-heavy platform not only wants to mint new Instagram influencers — it also wants to make them rich. In the last few weeks, the company announced ad revenue sharing on IGTV videos, special badges you can buy from your favorite accounts through Instagram Live, merchandise […]