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Chess Opening Theory/1. e4/1...e6/2. d4/2...d5/3. e5/3...c5/4. c3

French Defence: Advance Variation
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Position in Forsyth-Edwards Notation (FEN)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. c3
ECO code: C02

4. c3

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Here, after White's 4. c3, Black usually decides to increase the pressure on White's center pawns (d4/e5) by playing 4...Nc6.

Another plausible plan for Black is 4...Qb6, which also increases the pressure on d4, and allows the manoeuver 5...Bd7 followed by 6...Bb5. The idea is to trade Black's 'bad' bishop for White's 'good' bishop.

Theory table

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1. e4 e6 2. d4 d5 3. e5 c5 4. c3

4 5
Main line ...
Nc6
Nf3
Qb6
=
Wade variation ...
Qb6
Nf3
Bd7
=

References

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v · t · e
Chess Opening Theory
1. e4 e5
Open games
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. Nc3
Vienna
Other
1. e4 c5
Sicilian
1. e4 e6
French
1. e4 c6
Caro-Kann
1. e4 other
1. d4 d5
Closed games
1. d4 Nf6
Indian
1. d4 f5
Dutch
1. d4 ...other:
Flank
Unorthodox