Everytime I open Sololearn, I see 'Nikolay Nachev completed 20 challenges'. This had me wondering how he does it, Personally I have school, hence the only free time I have is in the morning and before bed plus I have to deal with other stuff, As a result I have little time to do challenges.
HOW DO YOU DO SO MANY CHALLENGES IN ONE DAY?
An advantage for top players is that most (not all though) Sololearners below Level 8 accept their challenges seeing the 32 XP prize. That may be the reason beyond 200+ challenges daily. So, he opens the app and starts challenging every opponent Sololearn displays. As those challenges can be completed when the opponent is online and he is not, we can always see "Nikolay Nachev completed 20 challenges".