Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

“I’ve heard that whatever square I start from, and no matter what path I take, I can always make at least 10 moves without landing on a square I’ve already been on,” said the white knight. The black ...

Wei Yi and Javokhir Sindarov decided to split the point after 50 moves while Norbidek Yakkuboev resigned on the 38th move against Andrey Esipenko.

It took about 50 years for computers to eviscerate humans in the venerable game of chess. A standard smartphone can now play the kind of moves that make a grandmaster’s head spin. But one artificial ...