Try out the site https://brilliant.org . I have been solving problems here and my tally has reached 40 . I just reached level 3 (See pic) but could slide back to level 2 if i make a blunder forthwith. :-( Check it out anyways...
The mark of the man who thinks...sometimes
Poetry, Chess, Programming, Philosophy, Philanthropy etc.
Twitter Handle @petrushkagoogol
External Spaces
https://themindspace.quora.com/?ch=10&oid=2086271&share=396067ef&srid=XrZim&target_type=tribe