O Kelly Variation (1.e4 c5 2.Nf3 a6 / 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 / 1.e4 c5 2.Nf3 a6 3.d4) in Chess

The O'Kelly Variation is a line in the Sicilian Defense, characterized by the moves 1.e4 c5 2.Nf3 a6. Named after Belgian Grandmaster Albéric O'Kelly de Galway, this variation aims to delay the development of Black's pieces while preparing for a flexible pawn structure.