As the world’s top athletes competed at the PyeongChang Winter Olympics, some robots also showed off their winter sports skills. A ski race involving robots was held recently at the Welli Hilli Park ski area near Pyeongchang. Eight teams built and programmed the robots to compete in the Ski Robot Challenge for a chance to win a $10,000 prize. The robots came in different shapes and sizes. The rules, however, required them to have the basic form of a human. They needed to be able to stand on two “legs,” with joints similar to elbows and knees. They also had to be at least 50 centimeters tall. In addition, each robot had to have an independent power system and use the same skis and poles that people do.