The bad news is that there is no single solution to Rule 16. There’s not even a daily solution, the puzzle will be different each time you play the game. So you’re going to have to do one of two ...

Duolingo launched a beta version of a chess course on Tuesday, April 22. The new, free course teaches users how each chess piece moves through short puzzles, lead by the app's in-game chess coach ...

Imagine a chessboard where the pieces move on their own, gliding across the squares with mechanical precision, as if guided by an invisible hand. It might sound like a scene from a futuristic movie, ...