2020-21: Student Leaderboard
Here you can see the top 100 students in the world sorted by number of correct answers followed by total number of submissions.
There are nearly 1000 students who answered the first puzzle correctly so at the moment the top 100 consists of just those whose names begin with A or B.
The student leaderboard is updated after entries have closed for each puzzle.
You can find the top 50 users in each age group on the results by age group pages.