If you can't solve a level there is no penalty. You can skip up to 9 skipped levels and come back later to those which you find hard.
Usecase Scenario: If I clear my browser session, then I lose any progress I made and will have to start from beginning (since I cant jump to arbitrary level)
Usecase Scenario: If I clear my browser session, then I lose any progress I made and will have to start from beginning (since I cant jump to arbitrary level)