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Chess Opening Theory/1. e4/1...c5/2. Nf3/2...d6/3. c3

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Open Sicilian
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Position in Forsyth-Edwards Notation (FEN)

rnbqkbnr/pp2pppp/3p4/2p5/4P3/2P2N2/PP1P1PPP/RNBQKB1R b

Moves: 1. e4 c5 2.Nf3
ECO code: B27-B99
Parent: Sicilian Defence

3. c3

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White aims to block black's dark-square bishop from the long diagonal and support a d4 advance. Play can transpose into an Alapin.

Theory table

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v · t · e
Chess Opening Theory
1. e4 e5
Open games
2. Nf3
2...Nc6
3. Bb5
Spanish
3. Bc4
Italian
3. Nc3 Nf6
Four knights
Other
2...Nf6
Russian
2...d6
Philidor
Other
2. f4
King's gambit
2...exf4
Accepted
Other
Declined
2. Nc3
Vienna
Other
1. e4 c5
Sicilian
2. Nf3
2...Nc6 3. d4 cxd4 4. Nxd4
2...Nc6 other
2...d6 3. d4 cxd4 4. Nxd4
2...d6 other
2...e6 3. d4 cxd4 4. Nxd4
2...e6 other
Others
Anti-Sicilians
1. e4 e6
French
1. e4 c6
Caro-Kann
1. e4 other
1. d4 d5
Closed games
2. c4
Queen's gambit
2. Nc3
2. other
1. d4 Nf6
Indian
2. c4 e6
2. c4 g6
2. c4 other
2. Nf3
2. other:
1. d4 f5
Dutch
1. d4 ...other:
Flank
Unorthodox
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