B20
Sicilian Defense
1. e4 c5
In the Sicilian Defense, aim to understand the plans and pawn structures, not just memorize the first moves.
The Sicilian is the most-played and most-analyzed defense to 1.e4. Black declines symmetry and fights for the center on their own terms, often emerging with a queenside majority and counterattacking chances.
It is the choice of players who want to win with Black. The downside is theory: lines like the Najdorf and Dragon are sharp and well-mapped, so know the ideas, not just moves.
Key plans
- Open Sicilian: 2. Nf3 then 3. d4 — most critical.
- Black’s counterplay usually comes on the c-file and queenside.
- Beginners can meet it with the calm c3-Sicilian (Alapin).
Play the Sicilian Defense? See where you go wrong.
Deepline reviews your real games, finds the exact moves that cost you, and trains the fixes.
Analyze my games free →Variations of the Sicilian Defense
- Amazon Attack1. e4 c5 2. Qg4
- Big Clamp Formation1. e4 c5 2. d3 Nc6 3. c3 d6 4. f4
- Bowdler Attack1. e4 c5 2. Bc4
- Brick Variation1. e4 c5 2. Nh3
- Euwe Attack, Prins Gambit1. e4 c5 2. b3 d5 3. Bb2
- Gloria Variation1. e4 c5 2. c4 d6 3. Nc3 Nc6 4. g3 h5
- Grob Variation1. e4 c5 2. g4
- Keres Variation1. e4 c5 2. Ne2
- King David's Opening1. e4 c5 2. Ke2
- Kronberger Variation1. e4 c5 2. Na3
- Kronberger Variation, Nemeth Gambit1. e4 c5 2. Na3 Nc6 3. d4 cxd4 4. Bc4
- Lasker-Dunne Attack1. e4 c5 2. g3
- Mengarini Variation1. e4 c5 2. a3
- Myers Attack, with a41. e4 c5 2. a4
- Myers Attack, with h41. e4 c5 2. h4
- Snyder Variation1. e4 c5 2. b3
- Snyder Variation, Queen Fianchetto Variation1. e4 c5 2. b3 b6
- Staunton-Cochrane Variation1. e4 c5 2. c4
- Wing Gambit1. e4 c5 2. b4
- Wing Gambit, Abrahams Variation1. e4 c5 2. b4 cxb4 3. Bb2
- Wing Gambit, Carlsbad Variation1. e4 c5 2. b4 cxb4 3. a3 bxa3
- Wing Gambit, Marienbad Variation1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Bb2
- Wing Gambit, Marshall Variation1. e4 c5 2. b4 cxb4 3. a3
- Wing Gambit, Nanu Gambit1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. c4 Qe6 7. Bd3
- Wing Gambit, Romanian Defense1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. Bb2 Nc6 7. c4 Qe6
- Wing Gambit, Santasiere Variation1. e4 c5 2. b4 cxb4 3. c4
- Smith-Morra Gambit1. e4 c5 2. d4 cxd4 3. c3
- Coles Sicilian Gambit1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qd1 Nf6 5. Bc4
- Halasz Gambit1. e4 c5 2. d4 cxd4 3. f4
- McDonnell Attack1. e4 c5 2. f4
- McDonnell Attack, Tal Gambit1. e4 c5 2. f4 d5 3. exd5 Nf6
- McDonnell Attack, Toilet Variation1. e4 c5 2. f4 d5 3. Nc3
- Morphy Gambit1. e4 c5 2. d4 cxd4 3. Nf3
- Morphy Gambit, Andreaschek Gambit1. e4 c5 2. d4 cxd4 3. Nf3 e5 4. c3
- Smith-Morra Gambit Accepted1. e4 c5 2. d4 cxd4 3. c3 dxc3
- Smith-Morra Gambit Accepted, Chicago Defense1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Bc4 e6 6. Nf3 d6 7. O-O a6 8. Qe2 b5 9. Bb3 Ra7
- Smith-Morra Gambit Accepted, Classical Formation1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 a6 7. O-O Nf6
- Smith-Morra Gambit Accepted, Danish Variation1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nf3
- Smith-Morra Gambit Accepted, Fianchetto Defense1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 g6
- Smith-Morra Gambit Accepted, Finegold Defense1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 d6 6. Bc4 a6 7. O-O Be7 8. Qe2 Nf6
Related openings
Sicilian Defense: Amazon AttackSicilian Defense: Big Clamp FormationSicilian Defense: Bowdler AttackSicilian Defense: Brick VariationSicilian Defense: Euwe Attack, Prins GambitSicilian Defense: Gloria VariationSicilian Defense: Grob VariationSicilian Defense: Keres VariationSicilian Defense: King David's OpeningSicilian Defense: Kronberger Variation