# Chess Opening Theory/1. e4/1...e6/2. d4/2...d5/3. Nc3/3...Bb4/4. e5/4...c5

< Chess Opening Theory‎ | 1. e4‎ | 1...e6‎ | 2. d4‎ | 2...d5‎ | 3. Nc3‎ | 3...Bb4‎ | 4. e5
French Defence, Winawer Variation
 a b c d e f g h 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 a b c d e f g h
Position in Forsyth-Edwards Notation(FEN)

rnbqk1nr/pp3ppp/4p3/2ppP3/1b1P4/2N5/PPP2PPP/R1BQKBNR

# French Defence, Winawer Variation

This is the main line of the Winawer Variation. Black has just pushed forward his c pawn with 4...c5, threatening white's pawn chain. White's knight on c3 prevents him from extending the chain by moving a pawn to c3, so this puts white's center pawns in danger.

However, c5 also blocks the escape route for black's dark squared bishop. White usually takes advantage of this to regain the initiative with 5.a3. Black usually trades bishop for knight with 5...Bxc3+ 6.bxc3.

## Theory table

For explanation of theory tables see theory table and for notation see algebraic notation

1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5
5
Main line a3
Bxc3+
=