How many coding challenges have you participated now?

Question

I want to ask you,

How many coding challenges have you participated now?

What was your most difficult challenge?

What coding challenge are you currently completing?

Answer 1

Unfortunately, only one (Goldbach's Conjecture), because I have a lot of stuff to do outside of Sololearn.
But I like them and I will definitely participate in them in the future.

Answer 2

I often tried to start challanging because I like competitions.But it is really hard to answer questions correctly, when the Smartphone never writes exactly the letters you typed.There had been a wrong programm installed and every correct answer became wrong.So I decided to try to write. codes ,because the factor time was not such important.I am at the beginning and it will take a lot of time to be successful. but I like learning and I have a lot of time since I am old.

Answer 3

Personally I don't have time for coding challenges.. But personally, the hardest so far was Chess Master challenge

That being said, it's inappropriate to post this sort of question on the FAQ.
A more suitable place would be on your personal feed

Answer 4

I have completed most of the coding challenges (see my codes)
The hardest, in my opinion, are Chess Engine - definitely, then Defend the Base and probably Candy robots (haven't done).