For more than six decades, the exact location of the Soviet Luna 9 spacecraft, the first object to land safely on the Moon, has eluded researchers. Now, with the help of artificial intelligence, ...

In mathematics, proofs can be written down and shared. In cryptography, when people are trying to avoid revealing their ...

For nearly a century, some of the simplest questions in quantum theory have stubbornly resisted clean answers, turning basic ...

Our free mini version of the classic crossword puzzle with a business twist. Perfect for the crossword enthusiast who only has a few minutes between meetings. New puzzles go live five days a week, ...

Erik Agard is a co-founder of the Crossword Puzzle Collaboration Directory, a resource for aspiring puzzle-makers from underrepresented groups. You could think of the set as a tribute to the power and ...

I'm going to give you some eight-letter words. For each one insert two letters in a row to make a familiar 10-letter word. Last week's challenge comes from listener Ward Harten. Think of a well-known ...

Note: Most subscribers have some, but not all, of the puzzles that correspond to the following set of solutions for their local newspaper. Answer: STIGMA GYRATE INFUSE FLINCH MUFFIN ...

Meet the PEOPLE Mini, our brand-new, totally free crossword, available only in the PEOPLE App. It’s not just cute — it’s also fast to play, easy to solve and designed for those moments when you want a ...

Abstract: The 8-puzzle problem serves as a fundamental benchmark for evaluating search algorithm performance in artificial intelligence applications. This paper presents a comprehensive comparative ...

Research shows that combining physical and mental exercise is the best way to keep your brain sharp as you age. And getting in extra steps or even taking up pickleball is a fairly clear-cut way to get ...

Gene Louise De Vera is a data scientist in Quezon City, Philippines. One night when he couldn’t sleep he was browsing the internet and stumbled on a crossword — which he liked. Soon after, he ...