Yugoslav Grandmaster Svetozar Gligoric is firmly established as one of the great pioneers of the King's Indian strategy and tactics. The variation he introduced in a tournament at Mar del Plata, Argentina, fifty years ago, is characterised by fierce attacks by the opposing sides - White on the queenside and Black on the castled king - making for exciting games and many dashing Black wins. This book contains not only up-to-date theory and illustrative games, but also the author's own fascinating narrative on the evolution, development and survival of his counterattacking system which has stood the test of time and remained popular at grandmaster and club level.