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Chess Opening Theory/1. e4/1...e6/2. d4/2...d5/3. Nc3/3...Bb4/4. e5/4...c5/5. a3/5...Bxc3/6. bxc3/6...Ne7/7. Qg4/7...O-O/8. Nf3/8...Nbc6

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French Defence, Winawer Variation
a b c d e f g h
8a8 black rookb8 black kingc8 black bishopd8 black queene8 black kingf8 black rookg8 black kingh8 black king8
7a7 black pawnb7 black pawnc7 black kingd7 black kinge7 black knightf7 black pawng7 black pawnh7 black pawn7
6a6 black kingb6 black kingc6 black knightd6 black kinge6 black pawnf6 black kingg6 black kingh6 black king6
5a5 black kingb5 black kingc5 black pawnd5 black pawne5 white pawnf5 black kingg5 black kingh5 black king5
4a4 black kingb4 black kingc4 black kingd4 white pawne4 black kingf4 black kingg4 white queenh4 black king4
3a3 white pawnb3 black kingc3 white pawnd3 black kinge3 black kingf3 white knightg3 black kingh3 black king3
2a2 black kingb2 black kingc2 white pawnd2 black kinge2 black kingf2 white pawng2 white pawnh2 white pawn2
1a1 white rookb1 black kingc1 white bishopd1 black kinge1 white kingf1 white bishopg1 black kingh1 white rook1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)

r1bq1rk1/pp2nppp/2n1p3/2ppP3/3P2Q1/P1P2N2/2P2PPP/R1B1KB1R w

Moves: 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3 6. bxc3 Ne7 7. Qg4 O-O 8. Nf3 Nbc6

French Defence, Winawer Variation

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From now on Black must defend very carefully.

Luckily Black's pawn structure on the kingside is very solid and ready to block any dangerous diagonal and vertical attacks of the White player - if needed.

After Black's last move 8... Nbc6 White's most common way of strengthening their attack on the Black King is 9. Bd3.

Other ideas are 9. h4 (with the aim of sacrificing a knight on g5 in exchange for an open h-File, e.g. after hxg5), and also 9. Qh3 has been tried (with the idea of playing Ng5 and after Black's necessary response h6 White can later try to open the g-file by playing g5).

Black should keep in mind that in this variation White often has a chance of sacrificing a bishop for two pawns on h6 and get a very strong attack on the black king, so Black must be very careful not to play h6 at a wrong time.

Theory table

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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. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 O-O 8. Nf3 Nbc6

9
Main Continuation Bd3
f5		 =
Variation h4 h4
...		 =
Variation Qh3 Qh3
...		 =

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References

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Wikipedia has related information at French Defence

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