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RoboCup-97, The First Robot World Cup Soccer Games and Conferences, was held at the Fifteenth International Joint Conference on Artificial Intelligence. There were two leagues: (1) real robot and (2) simulation. Ten teams participated in the realrobot league and 29 teams in the simulation league. Over 150 researchers attended the technical workshop. RoboCup-97, the First Robot World Cup Soccer Games and Conferences, was held on 22-28 August 1997 at the Fifteenth International Joint Conference on Artificial Intelligence (IJCAI-97) (figure 1).