ECO B20

Sicilian Defense

The position after 1.e4 c5.

Sicilian Defense 2 half-moves in · 18 named continuations

B20

8♜

♞

♝

♛

♚

♝

♞

♜

7♟

♟

♙

2♙

♙

a1♖

b♘

c♗

d♕

e♔

f♗

g♘

h♖

1. e4 c5

18 named

Nc3 Sicilian Defense: Closed B23
c3 Sicilian Defense: Alapin Variation B22
Ne2 Sicilian Defense: Keres Variation B20
Bc4 Sicilian Defense: Bowdler Attack B20
Ke2 Sicilian Defense: King David's Opening B20
Na3 Sicilian Defense: Kronberger Variation B20
Nh3 Sicilian Defense: Brick Variation B20
Qg4 Sicilian Defense: Amazon Attack B20
a3 Sicilian Defense: Mengarini Variation B20
a4 Sicilian Defense: Myers Attack, with a4 B20
b3 Sicilian Defense: Czerniak Attack B20
b4 Sicilian Defense: Wing Gambit B20
c4 Sicilian Defense: Staunton-Cochrane Variation B20
d4 Sicilian Defense: Smith-Morra Gambit B21
f4 Sicilian Defense: McDonnell Attack B21
g3 Sicilian Defense: Lasker-Dunne Attack B20
g4 Sicilian Defense: Grob Variation B20
h4 Sicilian Defense: Myers Attack, with h4 B20

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Walks the same position move by move, and plays on against Moonforge.

Variations of Sicilian Defense

29 named

Sicilian Defense is filed under ECO B20. It is the position after 1.e4 c5 — 2 half-moves in, with White to move. From here theory names 18 continuations: Nc3, c3, Ne2, Bc4, Ke2, Na3, Nh3, Qg4, a3, a4, b3, b4, c4, d4, f4, g3, g4, h4.