Chess Opening Theory/1. f4/1...f5

Symmetrical Variation
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Position in Forsyth-Edwards Notation (FEN)

rnbqkbnr/ppppp1pp/8/5p2/5P2/8/PPPPP1PP/RNBQKBNR w

Moves: 1. f4 f5
ECO code: A02-A03
Parent: 1._f4

The Symmetrical Variation

This is not a very popular line for Black because it can lead to a closed and relatively uneventful game if Black copies White's moves. This opening has only 40 games played by masters in the Lichess Master Database. There are two ways of playing this opening: 1. immediately disrupting the closeness with 2.e4, or 2. playing solidly and developing quietly.


Of note here is the Double Duck Formation, which is when White plays d4 and Black responds with d5.

Statistics

Approximate Chances
White wins 25%, Draws 43%, Loses 33%

Theory Table

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

2 3 4 5
Wagner-Zwitersch Gambit e4
fxe4		 d3
exd3		 Bxd3
Nf6		 Nf3
e6		 =
Swiss Gambit e4
fxe4		 Nc3
Nf6		 g4
...		 ...
...		 =/+
Nf3
Nf6		 g3
g6		 Bg2
Bg7		 O-O
O-O		 =
Double Duck Formationd4

d5

=

References

  • Nunn's Chess Openings. 1999. John Nunn (Editor), Graham Burgess, John Emms, Joe Gallagher. ISBN 1-8574-4221-0.
  • Modern Chess Openings: MCO-14. 1999. Nick de Firmian, Walter Korn. ISBN 0-8129-3084-3.
  • Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.


v · t · e
Chess openings quick reference
1. e4
1...e5 · Open
2. Nf3
With 2...Nc6:
Four knights: (
)
Italian game: (
)
Spanish game: (
)

With other 2nd moves:
2. Other

1...c5 · Sicilian
2. Nf3 · Open Sicilian
With 2...Nc6:

With 2...d6:

With 2...e6:

With other 2nd moves:
Anti-Sicilians
1... other
Caro-Kann
French
Other


1. d4
1...d5 · Closed
2. c4
2. Nc3
2. other
1...Nf6 · Indian
2. c4
With 2...e6:

With 2...g6:

With other 2nd moves for Black:
2. Nf3
2. other
1... other
Flank
Unorthodox
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