LinkedIn has hired three-time world Sudoku champion Thomas Snyder as its first-ever principal puzzlemaster. Snyder has ...

LinkedIn's puzzlemaster crafts daily games designed to keep users coming back — and competing with their connections.

We've seen dream engineering in blockbuster movies like Christopher Nolan's Inception, and a new study shows that the science-fiction-style idea may be much closer to science fact than we realized. A ...