Browse and learn the most important chess openings.
Sicilian Defense
B20 · 2 moves
Sicilian: Najdorf
B90 · 10 moves
French Defense
C00 · 2 moves
Caro-Kann Defense
B10 · 2 moves
Italian Game
C50 · 5 moves
Ruy Lopez
C60 · 5 moves
King's Gambit
C30 · 3 moves
Scandinavian Defense
B01 · 2 moves
Alekhine Defense
B02 · 2 moves
Russian Game
C42 · 4 moves
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1. e4c5
Sicilian Defense
ECO: B20
The most popular response to 1.e4. Black fights for the center asymmetrically, leading to sharp, complex positions with opposite-side attacking chances.
Key Ideas
•Black gets counterplay on the queenside with ...d5
•Creates imbalanced positions perfect for fighting for a win
•Leads to rich tactical battles — loved by attacking players