[OC] I recently learned that according to the official rules of UNO, you aren't allowed to accumulate plus-cards. That's why I used R to simulate 10,000 games of UNO both with and without allowing the accumulution of plus cards to see the difference.
from /r/dataisbeautiful
[OC]我最近了解到，根据UNO的官方规则，你不允许积累加牌。所以我用R模拟了10000场UNO的比赛，无论是允许积累加牌还是不允许积累加牌，都可以看出区别。