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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 game
2. Nf3
With 2...Nc6:
  • Four knights ( )
  • Italian game ( )
  • Spanish game ( )

With other 2nd moves:

2. Other
1. e4 c5
Sicilian defence
1. e4 ...other: