It’s been a great history of mathematics competition for primary school teacher students in Hungary. Over 30 years, the teacher training colleges/universities hold the “Szendrei János Mathematical Competition” yearly, circulating the hosting institutes. From 2011 on, this event is named after Szendrei János, a great teacher of primary school and mathematics teacher training and the inventor of a special form of competition. It is not only an occasion for students to give evidence of their preparedness in mathematics, but also an event for the educators to share the new trends and innovations in primary teacher training education. This year the Eszterházy Károly Catholic University hosted the event, and the innovation we were talking about was the “Poly-Universe in teacher education”. After the competition we gave a short presentation of the courses developed in the PUNTE project, and made a workshop for the educators and students from 9 different teacher training institutes of Hungary on the usage of the game on ISCED1 level. It was a good occasion to share our thoughts about how to use games in mathematics teaching in the first 4 years of public education. The participants had given positive reflections on the method and the results of the courses. We have offered Poly-Universe sets as prizes for the students and teams winning the competition.