Learning Chess for advanced Chess Players – Expert-Chess-Strategies.com
Chess Tactics Pro (Puzzles) - Apps on Google Play
Amazon.com: Chess for Beginners: 3 in 1- A Comprehensive Beginner's Guide + Tips, Tricks, and Secret Strategies + Advanced Methods Tips & Strategies to Play Like A Grandmaster eBook : Williams, Gary: Kindle Store
Chess Improvement: 5 Best Books for Advanced Players! | by Mackenzie Tittle | Medium