# Heilbronn square n=28 # value (exact area implied by these coordinate literals): 0.0067758102393368038155656289525 # domain: unit square [0,1]^2; value = min triangle area # credit: found by Marc-Emmanuel Coupvent des Graviers, July 2026 # coordinates: heilbronn-site reconstruct/reconstruct.py (re-polished from the published record figure — the record holder's arrangement with re-derived coordinates) # via: https://math.tejstead.com/heilbronn/square/28/ 0.312331121393416 0.154776231217608 0.600863676978958 0.399136323021042 0.687668878606583 0.154776231217609 0.399136323021042 0.399136323021041 0.118671095994088 0.959677775775726 0.88132890400591 0.959677775775726 0.040322224224274 0.881328904005911 0.959677775775726 0.881328904005911 0.312331121393417 0.84522376878239 0.687668878606584 0.84522376878239 0.154776231217609 0.687668878606583 0.845223768782389 0.687668878606582 0.399136323021043 0.600863676978957 0.600863676978959 0.600863676978958 0.154776231217609 0.312331121393414 0.845223768782389 0.312331121393416 0.040322224224274 0.118671095994085 0.959677775775726 0.118671095994089 0.118671095994088 0.040322224224274 0.88132890400591 0.040322224224274 1 0.668041579295079 1 0.33195842070492 0.331958420704919 0 0.668041579295079 0 0.331958420704921 1 0.668041579295081 1 0 0.668041579295079 0 0.331958420704917