Zachary Abel, Jeffrey Bosboom, Michael J. Coulombe, Erik D. Demaine, Linus Hamilton, Adam Hesterberg, Justin Kopinsky, Jayson Lynch, Mikhail Rudoy, Clemens Thielen. Who witnesses The Witness? Finding witnesses in The Witness is hard and sometimes impossible. Theoretical Computer Science, 839:41-102, 2020. [doi]
Abstract is missing.