z hou , ▁China . ▁▁ 2 0 0 9 ▁- ▁Gra z , ▁Austria . ▁▁ 2 0 1 0 ▁- ▁Singapore . ▁▁ 2 0 1 1 ▁- ▁Ist an bul , ▁Turkey . ▁▁ 2 0 1 2 ▁- ▁Mexico ▁City , ▁Mexico . ▁▁ 2 0 1 3 ▁- ▁E ind h oven , ▁the ▁Netherlands . ▁▁ 2 0 1 4 ▁- ▁João ▁P esso a , ▁Brazil . ▁ 2 0 1 5 ▁- ▁He fe i , ▁China ▁ 2 0 1 6 ▁- ▁Leipzig , ▁Germany ▁ 2 0 1 7 ▁- ▁N ago ya , ▁Japan ▁ 2 0 1 8 ▁- ▁Montreal , ▁Canada ▁ ▁Besides ▁the ▁international ▁competition ▁there ▁are ▁national ▁and ▁regional ▁compet itions ▁around ▁the ▁world . ▁O ften ▁teams ▁have ▁to ▁qual ify ▁at ▁their ▁local ▁competition ▁to ▁be ▁admitted ▁to ▁the ▁world ▁championship . ▁ ▁For ▁example , ▁in ▁Germany , ▁where ▁Rob o C up ▁Junior ▁is ▁very ▁popular , ▁teams ▁start ▁on ▁one ▁of ▁several ▁qual ification ▁tournament s ▁with ▁over ▁ 3 0 0 ▁teams , ▁before ▁adv ancing ▁to ▁the ▁German ▁Open ▁and ▁finally , ▁the ▁World ▁Championships . ▁ ▁Ch alleng es ▁ ▁Soccer ▁challenge ▁ ▁Two ▁teams ▁each ▁place ▁two ▁rob ots ▁( which ▁they ▁have ▁designed ▁and ▁created ) ▁on ▁a ▁playing ▁field . ▁The ▁aim ▁of ▁the ▁game ▁is ▁for ▁each ▁team ▁of ▁rob ots ▁to ▁play ▁a ▁fully ▁autonom ous ▁game ▁of ▁s occer . ▁ ▁The ▁rob ots