This endgame tactics textbook by Grandmaster Alexander Galkin, who was named Children´s Trainer of the Year in 2016 by the Russian Chess Federation, provides a large volume of practical knowledge. The vast majority of chess combination textbooks contain a selection of positions and exercises where the student is asked to find a tactic or carry out an attack against the enemy king. That way, they learn to develop their combinational vision and ability to attack. However, there is not much focus on the mistake by one of the players that led to the critical position where the combination or decisive attack became possible.
In this book, aimed at strong tournament players (1900-2300 Elo or fast improving juniors) the author introduces a wider approach to developing endgame tactics skills that a formidable chess player needs. Specifically, he presents 101 positions from games of grandmasters played in 2019, including super-GMs such as Magnus Carlsen, Ding Liren, Alireza Firouzja, Maxime Vachier-Lagrave, Alexander Grischuk, Wang Hao, Alexei Shirov, Samuel Shankland, Kirill Alekseenko, and Levon Aronian, in which he first explains the mistake made by one of the players in underestimating their opponent's counterplay, then he analyzes how the game progressed where punishment for the mistake is meted out.
After that, he returns to the starting position to demonstrate the correct or a more promising continuation. Therefore, the text is structured so that each challenge contains the starting diagram twice - before the moves in the actual game, and then, on the page overleaf, before the solution.