Erik D. Demaine, Matias Korman, Jason S. Ku, Joseph S. B. Mitchell, Yota Otachi, André van Renssen, Marcel Roeloffzen, Ryuhei Uehara, Yushi Uno. Symmetric assembly puzzles are hard, beyond a few pieces. Comput. Geom., 90:101648, 2020. [doi]
Abstract is missing.