Sicilian Defense
ECO: B20–B99For blacksharpe4unbalanced
Overview
Black's most ambitious reply to 1.e4. By playing ...c5, Black fights for the center asymmetrically and creates rich, double-edged play.
Key Ideas
- Counter-attack White's center asymmetrically with ...c5.
- Use the half-open c-file for rook play.
- Trade the c-pawn for a center pawn to gain a long-term majority.
- Aim for active piece play in the middlegame, not equal trades.
Main Lines
Line 1
1
2
3
4
5
6
7
h8
g
f
e
d
c
b
a
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6
Line 2
1
2
3
4
5
6
7
h8
g
f
e
d
c
b
a
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5
Line 3
1
2
3
4
5
6
7
h8
g
f
e
d
c
b
a
1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6
Pros & Cons
Pros
- Best winning chances for Black
- Rich and dynamic
- Plays for an imbalance
Cons
- Most theory of any defense
- White has many dangerous attacking lines
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Related Openings
- French Defense(C00)
- Caro-Kann(B10)
- Scandinavian Defense(B01)
- Open Games (1...e5)(C20)