Home › Openings › Sicilian Defense › Sicilian Defense: O'Kelly Variation › Sicilian Defense: O'Kelly Variation, Venice System Sicilian Defense: O'Kelly Variation, Venice System, Gambit Line ECO B28 · 1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Nf6 Related variationsSicilian Defense: O'Kelly Variation, Venice System, Barcza LineSicilian Defense: O'Kelly Variation, Venice System, Ljubojevic LineSicilian Defense: O'Kelly Variation, Venice System, Steiner Line Practice this opening · Play against the computer