Grandmaster Damian Lemos presents a repertoire for White against both the King's Indian and Grunfeld defences. Many players struggle to find suitable lines to challenge these two popular and dynamic openings, or find the masses of theory in the main lines difficult to digest. Lemos solves this perennial problem by advocating a solid system of development based on the fianchetto system, where understanding ideas is more important than move memorization. By playing a very early g3 and Bg2, White protects his kingside, denies Black much of the counterplay typically associated with the King's...