The Sicilian – O'Kelly Variation arises after 1.e4 c5 2.Nf3 a6. ECO code: B28.

Named after Belgian GM Albéric O'Kelly de Galway. The move 2...a6 is a flexible waiting move that prevents Bb5 and prepares ...b5. It aims to steer the game into favourable Najdorf or Kan-type structures while avoiding certain White setups. The variation is sound and has gained popularity.