Calculate Like Champions is the third book in the series The Power of Tactics. In this third volume, the authors continue to develop their ideas from the first two books — Tactics According to Smyslov and Become a Tactical Wizard. This volume is also the most difficult, it is intended for chess players with a rating 2000 and up. It deals, among other things, with the calculation of variants and decision-making in complex positions. The book brings more than 500 examples divided into chapters by topic, as shown in Figures 2 and 3 - first an explanation with comments and then exercises. Both authors, GM Mikhalchishin and IM Sakelsek, have been working as coaches for a long time and in the book they rely mainly on the material they have used during their coaching career. Further information about the book and a sample are available at chess-evolution.com. 3 pictures.