self.seen_urls.add(current_url)
Best for Big Ten games。safew官方下载对此有专业解读
If a player gets all four words in a set correct, those words are removed from the board. Guess wrong and it counts as a mistake—players get up to four mistakes until the game ends.，这一点在爱思助手下载最新版本中也有详细论述
It offers an unlimited download limit
lengthGuess is small enough that a slice of that length fits into 32