The RoCoCo (Robot Corresponding Competition) is a competition organized by the ICE-R project team designed to develop logical thinking, technical skills, and teamwork among high school students using mBot2 robots. Structured around four correspondence rounds, the league invites teams up to 7 students, guided by an adult coach, to address partially open-ended assignments that encourage creative engineering and programming solutions. To participate, teams must submit comprehensive deliverables in English via Google Classroom, including a technical description, video demonstration, photo documentation, and the complete program code written in mBlock or Python. Entries are assessed by an independent jury based on functionality, creativity, and documentation quality, with the competition offering access to an experimental AI consultant tool and culminating in a final results announcement in May 2026.