(in Egnlish known as Extreme Chess Tactics). The tactics textbook for advanced chess players contains about 340 examples with annotated solutions. Material is divided into 16 chapters, each of which contains first an explanation and then usually 20 examples for practice. Name index at the end. Yochanan Afek is both a Grandmaster of Composition and an over-the-board International Master. This unique combination of talents makes him a highly insightful writer, noted for his work on the factors that make moves hard to see...