The article discusses the author's journey to improve their chess skills as an adult, going from a rating of 300 to 1500 ELO in 9 months. The author attributes their improvement to a daily practice routine focused on tactical fluency, using tools such as Chessable and studying courses like GM Susan Polgar's Learn Chess The Right Way series. The author emphasizes the importance of tactical skill in chess and provides a detailed explanation of their practice routine. The article also touches on the idea that adult chess improvement is possible, but often requires a different approach than that used by children.