Sicilian Defense (introduction, ideas & variations) ⎸Chess Openings

French Defense - Chess Pathways

Sicilian Defense - 1.e4 c5 (Variations, Move Orders, Purpose) - PPQTY

Sicilian Defense The Chelyabinsk Variation: Its Past, Present and Future

Pin Variation IM Mark Ginsburg Presents A Personal Chess History

Sicilian Defense (How To Play It, Attack It, And Counter It)

The Open Sicilian Bundle

Why would White play 2.a3 as their 2nd move in the Sicilian Defense? It's not an accepted opening and I see no benefits. How would you go about strategizing a reply, as

The Alapin Variation: Playing the Anti-Sicilian as White and Black

Sicilian Defense (How To Play It, How To Counter It, And It's Theory)

The Ultimate Sicilian Defense: Sicilian Opening in Chess