What is the fine-grained topic of the following text: When Og and Ugh were casting knucklebones to pass the time in their Paleolithic cave, it probably wasn’t long before Og figured out that if he shaved down one side of his favorite knucklebone just so, he could up his chances of winning by enough to end up the possessor of Ugh’s best flint hand-axe before Ugh caught on. Only return the topic.
Cheating in early forms of games during the Paleolithic era.