ludus coriovalli (13. 251)

Though our knowledge of the history of gaming of in Antiquity is somewhat obscured by the absence of manuals, we have plenty of artefacts (see previously here and here) that hint at rules of play. One more mysterious board game discovered at the Roman site of Coriovallum in city of Heerlen in the present day Netherlands, is a rounded limestone tablet with grid marks that did not seem to follow any known rules. A wear-use analysis informed an AI-driven simulation of all possible permutations and can trace out the order of play based on other blocking games from the region. More from Open Culture at the link above.