12 june 2015
30 schools from 4 continents participated to this event organized by David Martin de Diego (Instituto de Ciencias Matematicas) en Alcobendas / Plaza Mayor
Kuantan
Kuantan
Kuantan
Mumbai
Mumbai
Mumbai
Karauli
Karauli
Karauli
Donji Muc
Donji Muc
Donji Muc
Greenwich
Greenwich
Greenwich
Gressoney
Gressoney
Gressoney
Pont St Martin
PontStMartin
Pont St Martin
Keith
Keith
Keith
Lafranรงaise
Lafranรงaise
Lafranรงaise
Tunis
Tunis
Tunis
Aigio
Aigio
Aigio
Athens
Athens
Athens
Chania
Chania
Chania
Ioannina
Ioannina
Ioannina
Kozani
Kozani
Kozani
Lardos
Lardos
Lardos
Messinia
Messinia
Messinia
Petroupoli
Petroupoli
Petroupoli