Robots played football during the 13th international RoboCup competition at Tehran International Fair in Tehran, Iran on April 6, 2018, with participation from around 500 teams./VCG Photo

The competition is designed to help promote and develop AI technology (AI) and robotics research. The adult competition is set for April 4 - 7, 2018 and the student league was held on April 4. /VCG Photo

24 international teams, including India, China, South Korea and the Netherlands are in the competition to showcase their latest achievement in the AI field. /VCG Photo