Sicilian Defence, Pin Variation: Based on Free GM Lecture

Common Lines in the Sicilian Defense Chess Opening

Sicilian Defense: Full Guide, Main Lines, Secondary Options

Common Variations in the Open Sicilian : r/chess

Sicilian Defense: Kalashnikov Variation with GM Misa Pap

Is the Sicilian french variation the best variation in the

Sicilian Defense - How to play, attack, and Counter the Sicilian?

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

Sicilian Defense: Old Sicilian Variation

Dangerous Weapons: The Sicilian - John Emms and Richard Palliser – Everyman Chess

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