
Number of Lessons Achievement
You get this Progressive achievement by completing certain numbers of lessons. For a lesson to be considered completed, every challenge in it must be solved.
New levels in the achievement are awarded at 1, 5, 10, 25, 100 and 1000 lessons.
Steps:
- Go to Learn -> Lessons
- Make sure at the top you are in the Guide tab
- Select any course in a category
- Select any lesson, and complete the challenges
- Complete lots of lessons to get more levels in the achievement
These achievements are significantly easier with premium, as without it, you only get 1 lesson per week. However, all lessons in the "New to Chess" category are free, unrestricted, and also count towards this achievement