ECO B28: Sicilian Defense

ECO B28 is part of volume B — Semi-Open Games. The Lichess chess-openings dataset files 20 named lines under it. The shortest is Sicilian Defense: O'Kelly Variation: 1. e4 c5 2. Nf3 a6.

That position has come up in 4,703,886 Lichess games between players rated 1600 to 2500: White won 46.9%, 4.9% were drawn and Black won 48.2%.

Opening	Moves	Plies
Sicilian Defense: O'Kelly Variation	`1. e4 c5 2. Nf3 a6`	4
Sicilian Defense: O'Kelly Variation, Aronin System	`1. e4 c5 2. Nf3 a6 3. Be2`	5
Sicilian Defense: O'Kelly Variation, Kieseritzky System	`1. e4 c5 2. Nf3 a6 3. b3`	5
Sicilian Defense: O'Kelly Variation, Maróczy Bind	`1. e4 c5 2. Nf3 a6 3. c4`	5
Sicilian Defense: O'Kelly Variation, Normal System	`1. e4 c5 2. Nf3 a6 3. d4`	5
Sicilian Defense: O'Kelly Variation, Quiet System	`1. e4 c5 2. Nf3 a6 3. d3`	5
Sicilian Defense: O'Kelly Variation, Réti System	`1. e4 c5 2. Nf3 a6 3. g3`	5
Sicilian Defense: O'Kelly Variation, Venice System	`1. e4 c5 2. Nf3 a6 3. c3`	5
Sicilian Defense: O'Kelly Variation, Wing Gambit	`1. e4 c5 2. Nf3 a6 3. b4`	5
Sicilian Defense: O'Kelly Variation, Yerevan System	`1. e4 c5 2. Nf3 a6 3. Nc3`	5
Sicilian Defense: O'Kelly Variation, Maróczy Bind, Paulsen Line	`1. e4 c5 2. Nf3 a6 3. c4 e6`	6
Sicilian Defense: O'Kelly Variation, Maróczy Bind, Robatsch Line	`1. e4 c5 2. Nf3 a6 3. c4 d6`	6
Sicilian Defense: O'Kelly Variation, Venice System, Barcza Line	`1. e4 c5 2. Nf3 a6 3. c3 Nf6`	6
Sicilian Defense: O'Kelly Variation, Venice System, Ljubojevic Line	`1. e4 c5 2. Nf3 a6 3. c3 b5`	6
Sicilian Defense: O'Kelly Variation, Venice System, Steiner Line	`1. e4 c5 2. Nf3 a6 3. c3 d6`	6
Sicilian Defense: O'Kelly Variation, Normal System, Cortlever Gambit	`1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Bc4`	7
Sicilian Defense: O'Kelly Variation, Normal System, Smith-Morra Line	`1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. c3`	7
Sicilian Defense: O'Kelly Variation, Normal System, Zagorovsky Line	`1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Qxd4`	7
Sicilian Defense: O'Kelly Variation, Normal System, Taimanov Line	`1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 e5`	8
Sicilian Defense: O'Kelly Variation, Venice System, Gambit Line	`1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Nf6`	8