The ChessAIThon project (2025-1-ES01-KA220-VET-000354329) is co-funded by the European Union. The views and opinions expressed in this publication are those of the author(s) only and do not necessarily reflect those of the European Union or the Spanish Service for the Internationalisation of Education (SEPIE). Neither the European Union nor the National Agency SEPIE can be held responsible for them.
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A successful AI chess competition depends on a solid and thoughtfully designed technical framework. At the heart of the event is a digital ecosystem in which student-created chess engines communicate seamlessly with the tournament platform. This infrastructure not only ensures that matches unfold smoothly and fairly, but also provides students with an authentic experience of how artificial intelligence systems operate in real-world environments.
The foundation begins with establishing reliable hardware and a standardized software environment. All teams must run their AIs under the same technical conditions so that the competition evaluates the quality of their algorithms—not the speed of their computers. A central tournament controller coordinates all matches, receives moves from each AI, validates them, and updates the game state. Students quickly discover that consistent performance requires not only strategic insight, but also strong engineering practices.
A key element of this system is the use of APIs, which allow AIs to exchange information with the tournament controller. Through these interfaces, students work with structured messages, board-state data, and time-sensitive responses. Learning to interact through an API teaches essential skills in system integration, communication protocols, and data formatting—skills increasingly important in modern AI and software development.