How to get the achievement ''Introspection'' ?

- Mouseover Learn menu -> click on Explorer.
- From the top right menu change from Master Games to My Games.
- You can either go specific in next drop down list and select a game type (like Blitz) or leave it as All Games. Same applies to color.
- After that, just keep clicking on consecutive moves from the table underneath at least until you pass move.
- Bam Introspection achievement!
(Credits to @Nightwish85)

Read this blog: https://www.chess.com/blog/Nightwish85/introspection
I don't really know how to get that achievement