Open Superconductor Challenge: Help Discover the Next 2D Superconductor — From Your Laptop

The Open Superconductor Challenge is an open-science competition hosted on Hugging Face that invites participants to computationally screen two-dimensional materials for potential unconventional d-wave superconductivity using provided Hubbard-model parameters and laptop-based methods. Participants can evaluate materials from an expanding set drawn from a 4,832-material universe, submit pairing estimates through the platform, and receive provisional leaderboard scores, while organizers use a private high-precision many-body solver to verify leading candidates. The challenge currently reports verified high-scoring candidates including CuS₂, NV₂, Co₂Se₂, H₂Ti, and Br₂Cu, though its pairing index indicates screening potential rather than a confirmed superconducting transition temperature. The competition supports methods ranging from exact diagonalization and variational Monte Carlo to mean-field and machine-learning approaches, offers a $3,000 prize pool and co-authorship recognition for qualifying entrants, and is scheduled to close its first season on December 31, 2026.

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