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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
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| Winawer variation | |
|---|---|
|
a
b
c
d
e
f
g
h
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
a
b
c
d
e
f
g
h
|
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Position in Forsyth-Edwards Notation (FEN)
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| Moves: 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 | |
| ECO code: C17-C19 | |
| Parent: Winawer variation | |
5. a3
[edit | edit source]This is the main line of the Winawer variation. Black's bishop is pinning White's c3 knight, and their c5 advance has just put additional pressure on White's center. At this point, White has chosen to regain the initiative by kicking out the bishop with 5. a3.
Black usually takes the knight with 5...Bxc3+, because moving 5...Ba5 leaves the c5 pawn undefended and open to White's 6. dxc5.
Theory table
[edit | edit source]1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3
| 5 | 6 | 7 | ||
|---|---|---|---|---|
| Main line | ... Bxc3+ |
bxc3 Ne7 |
⩲ | |
| Retreat variation | ... Ba5 |
b4 cxd4 |
Nb5 Bc7 |
⩲ |
References
[edit | edit source] |
Wikipedia has related information at French Defence. |
- Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.
2. f4
King's gambit
King's gambit
2...exf4
Accepted
Accepted
Other
Declined
Declined
2. Nc3
Vienna
Vienna
Other
1. e4 other
- Barnes ?
- Borg ?
- Corn stalk ??
- Duras ??
- 1...b5 ??
2. c4
Queen's gambit
Queen's gambit
2. other
- Accelerated London
- Colle
- Levitsky !?
- Amazon ?!
- Blackmar-Diemer ?
- Mason ?
- Zurich ??
2. c4 other
2. other:
1. d4 ...other:
Flank
Unorthodox
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