Solve the math puzzle from our February 2026 issue, where we plan a return passage for a robotic explorer that doesn’t want ...

In last month’s Insights column, we explored randomness in mundane objects such as a combination bicycle lock and a hexagonal jigsaw puzzle, before debating the philosophical underpinnings of ...

Evolutionary stories like the grandmother hypothesis are easy to construct from mathematical models, but how well do they reflect reality? As Rennie explained, the population structures imposed by a ...

Math is not everyone’s favorite, understandably. Hours of math homework and difficult equations can make anyone sour on the subject. But when math problems are outside of a school setting, there’s no ...

[Announcer] Four, three, two, one, KenKen. in newspapers of the world. I learned about KenKen through Games Magazine. In a graduate school class at Brooklyn College. Randomly, in maybe a airplane ...

Sayonara, Sudoku. For a better-rounded puzzle that includes not just logic, but math, too, try KenKen. It's probably even good for you. Stephen Shankland worked at CNET from 1998 to 2024 and wrote ...

A brain teaser is a short, playful puzzle designed to make your mind stretch and smile. It could be a riddle, a tricky question, a visual illusion, or a logic twist that nudges you to think beyond the ...

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