The last 7 days

Marks rank first — the most right answers over the seven days takes the top, and equal marks go to the better accuracy, then to the faster week. Everyone has the same 25 questions a day to work with, so nobody can climb by simply answering more: 120 right of 150 is a real week's work, while 1 right of 1 is not. The board rolls every day, so a quiet week never follows you around. The belt beside a name is an all-time count and takes no part in the ranking.