This new book is our “Jubilee” as it is the 10th in the series. It contains 440 puzzles and they are divided into 3 chapters. You will find a huge range of tactical ideas that you can use in your own games! All the puzzles have been collected from online games throughout the year 2020. In each section, the puzzles are sorted according to the date of the game. The book consists of three chapters: 1. Easy (233 Puzzles) 2. Medium (146 Puzzles) 3. Hard (61 Puzzles) All in all, 440 puzzles created by the greatest masters of our time, maestros such as Carlsen, Caruana, Ding Liren, Vachier-Lagrave, and many more. I advise you to try to solve all the combinations in each chapter one-by-one, because a less difficult solution from the “Easy” section might be even more brilliant from the beauty point of view than a “nutcracker” from the “Medium” or “Hard” section. Even if a puzzle can be easily solved, it sharpens your tactical skills and makes it so much easier to find solutions in a practical game, even under difficult circumstances. To be tactically sharp is one of the basic requirements for a successful chess player!