Lesson progress
There are two ways your progress is shown in Lessons:
If you've completed an entire lesson theme, a checkmark will appear over it.
If you've only completed part of a theme, you'll see a percentage indicating your progress instead.
How to reset your Lessons progress
If you’ve been away from Chess.com and want to start fresh, or if you’ve completed all the lessons and would like to go through them again, follow these steps to reset your progress:
Click the cogwheel icon ('Settings') in the bottom-left corner of any Chess.com page, then select 'All Settings.'
Select 'Gameplay' from the menu on the left. Scroll down to the bottom to find the 'Lessons History' section, and click the 'Reset' button to undo your progress for lessons.
This won’t change your access to lessons based on your membership, but will only reset the completed status of your lessons.