How can I a good challenger on solo?

Answer 1

Go there and ask for challenge. https://www.sololearn.com/discuss/864805/?ref=app

Answer 2

If you get an answer wrong, then I suggest looking at it later, and figuring out what is the answer and why.

Answer 3

Thanks guys

Answer 4

Practice more challenges and see your wrong answers again and then google it or discuss with the opponent who has challenges you and has marked correct answers.