This book is in every way a definitive guide: Efstratios Grivas provides the inside story on a variation of the Sicilian Defence that he has worked for more than 20 years to perfect, and which rightly bears his name. The Grivas Sicilian (1 e4 c5 2 Nf3 Nc6 3 d4 cxd4 4 Nxd4 Qb6) has proved itself sound and reliable in practice, but is also far less well investigated than most Sicilian systems. This gives it an extra sting in practice, which readers will be able to use to their advantage over the board - it is most unlikely that their opponents will have a well-worked-out response ready. The Grivas Sicilian generally leads to positions akin to the Scheveningen, but with some subtle differences. Grivas explains these subtleties at length, helping readers to exploit all their chances to seize the initiative.