Understanding before Moving 3: Sicilian Structures Part 1 - Herman GrootenUnderstanding before Moving 3 by Herman Grooten Sicilian Structures Part 1 The Najdorf and Scheveningen International Master Herman Grooten has over thirty five years' experience as a professional chess trainer. Many of his pupils have gone on to become very strong players. The best known are grandmasters Loek van Wely, Robin Swinkels, Wouter Spoelman, Jan Werle and Benjamin Bok. As an author he has released several books, of which Chess Strategy for