(In English known as Positional Decision Making in Chess). The main topic is positional play. Boris Gelfand also explains how he thinks during the game - many samples are from his own praxis. Material is divided into 5 chapters: Igra v stile Akiby Rubinsteina (Playing in the style of Akiba Rubinstein); Zazhim (The Squeeze); Prostranstvenny pereves (Space advantage); Transformatsia peshechnoy struktury (Transformation of Pawn Structures); Transformatsia preimushchestva (Transformation of Advantages). GM Boris Gelfand lives in Israel and belongs to world top players for more than two decades. Several indexes at the end. The English version of this book was awarded by English Chess Federation as The book of the Year 2015.