i'm flabbergasted. They are non-transitive dice!
Tadashi Tokieda's Numberphile video on non-transitive dice: https://www.youtube.com/watch?v=zzKGnuvX6IQ
singingbanana's video on Simpson's Paradox: https://www.youtube.com/watch?v=wgLUDw8eLB4
GitHub repo with this visualization's source code: https://github.com/carykh/Non_Transitive_Dice