Wordle is a word puzzle that gives players six chances to guess a five-letter word. Originally created by software engineer ...

Are the seas connected by a strait choked with eternal ice? This, says Rear Admiral Richard E. Byrd, is “the world’s greatest unsolved geographical puzzle.” Contact us at letters@time.com ...

Now, more than 122 years after it was first proposed, Kamata and two other mathematicians have finally proved that a solution with fewer pieces is impossible. Their result was posted to the server ...

Alexander Hartmann, a physicist at the University of Oldenburg, in Germany, has introduced a new model to explain a common word puzzle phenomenon. In his paper published in the journal Physical ...