Chess Opening Theory/1. e4/1...c5/2. Nf3/2...d6/3. d4/3...cxd4/4. Nxd4/4...Nf6/5. Nc3

= Open Sicilian = Time has come for Black to make an important strategic choice.


 * They may keep on developing their forces by playing /5...Nc6/.
 * They can choose to strengthen their pawn structure and to reinforce their control of the center with /5...e6/.
 * They can also start to take the control of the queen-side with /5...a6/.
 * They may decide to put a deadly bishop in g7 and play /5...g6/.

These are the four main variations. Another more aggressive option is /5...e5/, less popular than the previous moves.

Theory table
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'''1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3'''