One of the first games mentioned is Hnefatafl. According to Wikipedia, "The only variant of tafl where a relatively unambiguous ruleset has survived into modern times is tablut."
> Tablut starting position: lighter "Swedes" start in centre; darker "Muscovites" start at the board's edges. Based on Linnaeus' sketches reproduced in Smith (1811).
Oh those Muscovites! While the article focuses on strategic lessons, it seems that games are also a medium for passing down historical ones.
Well, P(ukraine blames russia | russia did it) = P(ukraine blames russia | ukraine did it) = 1. But P(ukraine blames russia | nobody did anything) < 1. So Ukraine saying Russia did something still provides information that something happened.
This particular piece of information might not inform whether Ukraine or Russia did it, but that doesn't mean the likelihood of the two events are equal. There are other pieces of information out there.
