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King's Pawn Opening

Chess Opening Theory/1. e4

King's Pawn opening
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Position in Forsyth-Edwards Notation (FEN)
Moves: 1. e4
ECO code: B00–B99, C00–99
Parent: Starting position
Responses:


1. e4 · King's Pawn opening

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Best by test.

— Bobby Fischer[1]

1. e4, the King's Pawn Opening, is the most popular first move at all levels of the game. 1. e4 opens lines to develop the queen and the king's bishop. It also fights for control of the centre.

1. e4 directly controls d5 and f5, which may or may not be relevant later because Black, if they wanted, to could just take those squares away again by playing 1...e6. If White wants to develop some pieces, the most important square they control by playing 1. e4 is, in fact, the e4 square itself: as long as there's a white pawn on e4, there can't be a black pawn on e4, which means White's g1-knight can be developed to f3 without fear of getting kicked away by a pawn and losing a tempo.

Black has several ways to respond. The main idea is to find a way to prevent White for achieving or maintaining a two-pawn centre with both e4 and d4. They may try to:

  • Control the d4 square.
  • Attack White's e4 pawn directly.
  • Prepare to establish their own pawn on d5.
  • Let White build a centre but prepare to undermine it later.

Control d4

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If Black can control d4 with a pawn, then it will be hard for White to establish pawns on both d4 and e4 and keep them there.

Black has two pawn pushes that control the d4 square: 1...e5 the Open game, and 1...c5 the Sicilian defence. It is no accident that these are the most popular continuations at all levels.[2]

1...e5 lets Black take space in the centre. It is the classical reply: traditionally 1. e4 openings are divided into 1...e5, the Open game, and the rest, the Semi-Open games. Now if 2. d4, Black can take it and prevent White from controlling all that central space.

Just as 1. e4 helps White White to indirectly control the e4 square, 1...e5 prevents White from playing 2. e5, and so ensures Black can develop their knight to f6.

White's argument is that moving first in a symmetrical position is eventually going to favour the player moving first. White's usual continuation is 2. Nf3, a threat to eliminate the e5 pawn so that they may play d4 securely.

1...c5 is the mainline in master-level games today. If White plays d4, Black can take it with the flank c pawn, keeping their two more important central pawns. An asymmetric opening, it is thought of as more combative than 1...e5.

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Open game
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Sicilian defence

Attack e4

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Black can confront White's e-pawn immediately to open up the centre.

1...d5 is the Scandinavian defence. Black intends to eliminate White's centre, even if they have to give up hopes of a big centre of their own. It is less popular in tournament play than as a club-level reply. where part of its appeal is that it is very forcing and confrontational. White's response is almost always 2. exd5, then Black can recover the pawn if they so choose.

1...f5? is the risky Duras gambit. 2. exf5 and Black has succeeded in deflecting the e pawn away from the centre, but at the cost of a weakened kingside.

1...Nf6, the Alekhine defence, also attacks e4, but White will rarely allow Black to take it. It usually continues 2. e5 (kicking knight) Nd5 3. d4. Black's real idea is to allow White the centre for now and undermine it later.

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Scandinavian game
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Duras gambit
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Alekhine defence

Support d5

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If Black can play a pawn to d5 and keep it there, they get to hold onto a share of the centre. If Black tries to put a pawn on d5 immediately, White will capture it (the Scandinavian defence, above), so in order to maintain a pawn on d5 Black needs to be able to recapture with a pawn from either c6 or e6.

1...e6 is the French defence. After 2. d4 d5, Black keeps a share of the centre, and White's continuations include opening the position with exd5 exd5, or closing the position with e5. The key disadvantage of the French defence is that Black's bishop is a liability and hard to develop, because the e6 pawn blocks it in.

1...c6 is the Caro-Kann. This has the advantage of avoiding the unhappy French bishop, but instead it takes the c6 square away from Black's knight, and if Black should want to play c5 later, they have lost a tempo.

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French defence
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Caro-Kann

Relinquish the centre

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Position in the Pirc defence after 1. e4 d6 2. d4 Nf6 3. e5 dxe5 4. dxe5 Qxd1+ 5. Kxd1 Ng4!

Black can relinquish control of the centre for now, looking to develop pieces instead. They want to later undermine the centre, and control it from afar with their pieces rather than their pawns.

One way Black can control the centre from afar is by fianchettoing a bishop (developing it to the flank, to either g7 or b7, where it controls a long diagonal running through the centre).

1...g6 is the Modern defence. Black's will follow with Bg7 to control a swathe of the centre before making more committal pawn moves.

1...b6 is Owen's defence. Black intends Bb7 to control the other long diagonal. Unlike the Modern, this doesn't have the benefit of preparing kingside castling.

1...d6 is the Pirc defence. Black would like to play Nf6 to control the centre. d6 is prophylaxis to prevent White from playing e5: after 1...d6 2. d4 Nf6, the move 3. e5 doesn't work because of 3...dxe5 4. dxe5 Qxd1+ 5. Kxd1 Ng4! forking the pawns on e5 and f2 (contrast 1...Nf6, the Alekhine defence). Black usually fianchettos the bishop to Bg7 in this opening as well.

1...Nc6, the Nimzowitsch defence, develops the knight to control d4 and e5. This allows 2. d4, and then Black can choose to respond with either 2...d5 or 2...e5.

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Modern defence
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Owen's defence
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Pirc defence
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Nimzowitsch defence

Rare responses

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Other responses include:

  • 1...a6, the St. George defence, mostly famous for having been played by Tony Miles against then World Champion Anatoly Karpov. Often Black will follow up with 2...b5, expanding on the queenside.
  • 1...f6?, the Barnes Defence. A rare move that is not a good idea, as it removes the f6 square for the knight and weakens the kingside. Even so, Thomas Wilson Barnes (after whom it is named) beat Paul Morphy, one of the most influential grandmasters in the 19th century, with this opening. Its only benefit is that it gets out of theory.
  • 1...g5?, the Borg Defence (opposite of Grob) is another option Black has, however it is a bad one because it does weaken the kingside severely. The g5-pawn can serve as a hook for White (h4) later on. This also can lead to a Fool's Mate for Black.
  • 1...a5?!, the Ware Defence is equally weak as 1...h5. It just wastes a tempo.
  • 1...h5?!, the Pickering Defence simply wastes a tempo and weakens Black's position.
  • 1...h6?!, the Carr Defence, is another time-wasting move, but it usually transposes into the Borg Defence anyways after 2. d4 g5.
  • 1...Na6?! develops the b8-knight to an inferior square.
  • 1...Nh6?! develops the g8-knight to an inferior square.
  • 1...b5? simply loses a pawn to 2. Bxb5.

Statistics

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Approximate chances
White win 39%, Draw 29%, Black win 32%.
Estimated next move popularity
c5 39%, e5 26%, e6 12%, c6 8%, d5 4%, d6 4%, g6 3%, Nf6 2%, Nc6 1%, b6 1%, other moves less than 0.5%.
move average 365Chess.com (big) Chess Tempo (all) chessgames.com Lichess (masters) Lichess (database)
1...c5 39.1% 41.4 43.0 41.2 46.3 23.4
1...e5 25.9 24.0 22.2 28.6 22.7 31.8
1...e6 12.4 13.1 12.9 12.0 12.1 11.8
1...c6 7.8 7.4 8.2 7.4 7.8 8.3
1...d5 4.1 3.5 3.2 2.0 2.0 9.9
1...d6 4.0 4.3 4.3 3.5 3.6 4.3
1...g6 3.1 3.0 3.0 2.7 2.9 3.9
1...Nf6 2.1 2.3 2.1 1.8 1.8 2.5
1...Nc6 0.8 0.7 0.7 0.5 0.5 1.4
1...b6 0.6 0.3 0.3 0.2 0.2 2.0
1...a6 0.1 0.1 0.1 0.1 0.0 0.3
1...f5 0.0 0.0 0.0 0.0 0.0 0.2
everything else 0.1 0.0 0.0 0.0 0.0 0.3

Theory table

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

1. e4

  1 2 3 4 5 6 7 8 9 Evaluation
Sicilian Defence ...
c5
Nf3
d6
d4
cxd4
Nxd4
Nf6
Nc3
a6
Be3
e5
Nb3
Be6
f3
Be7
Qd2
O-O
+/=
Ruy Lopez ...
e5
Nf3
Nc6
Bb5
a6
Ba4
Nf6
O-O
Be7
Re1
b5
Bb3
d6
c3
Na5
Bc2
c5
+/-
French Defence ...
e6
d4
d5
Nc3
Nf6
Bg5
Be7
e5
Nfd7
Bxe7
Qxe7
f4
O-O
Nf3
c5
Qd2
Nc6
+/=
Caro-Kann Defence ...
c6
d4
d5
Nc3
dxe4
Nxe4
Bf5
Ng3
Bg6
h4
h6
Nf3
Nd7
h5
Bh7
Bd3
Bxd3
+/=
Scandinavian Defence ...
d5
exd5
Qxd5
Nc3
Qa5
d4
Nf6
Nf3
c6
Bc4
Bf5
Bd2
e6
Nd5
Qd8
Nxf6
Qxf6
+/=
Pirc Defence ...
d6
d4
Nf6
Nc3
g6
f4
Bg7
Nf3
O-O
Bd3
Na6
O-O
c5
d5
Rb8
Qe2
Nc7
+/-
Modern Defence ...
g6
d4
Bg7
Nc3
d6
f4
a6
Nf3
b5
Bd3
Bb7
Qe2
Nc6
e5
Nh6
d5
Nb4
+/-
Alekhine Defence ...
Nf6
e5
Nd5
d4
d6
c4
Nb6
f4
dxe5
fxe5
c5
d5
e6
Nc3
exd5
cxd5
Qh4+
+-
Nimzowitsch Defence ...
Nc6
d4
d5
e5
Bf5
Nf3
e6
Bb5
a6
Bxc6+
bxc6
O-O
c5
c3
cxd4
cxd4
h6
+-
Owen Defence ...
b6
d4
Bb7
Bd3
e6
Nf3
c5
c3
Nf6
Qe2
Be7
O-O
Nc6
e5
Nd5
dxc5
bxc5
+/-
St. George Defence ...
a6
d4
b5
Nf3
Bb7
Bd3
Nf6
Qe2
e6
O-O
c5
c3
d5
e5
Nfd7
dxc5
Nxc5
+/-
Duras Gambit ...
f5
exf5

Nf6

d4

d5

Bd3

c5

c3

c4

Bc2

e6

Qe2

Bd6

fxe6

Qe7

Nf3

Bxe6

+-
Barnes Defence ...
f6
d4
e6
Bd3
Ne7
Nf3
c5
d5
d6
O-O
Ng6
Nc3
e5
Re1
Be7
Ne2
O-O
+-
Borg Defence ...
g5
d4

Bg7

Bxg5

c5

c3

Qb6

Nf3

cxd4

cxd4

Nc6

Nc3!?

Nxd4

Nd5!

Qxb2

Rc1

Nxf3+

+-
Ware Defence ...
a5
d4

e6

Nc3

d5

Bd3

Nc6

Nf3

Nb4

Be2

dxe4

Nxe4

h6

O-O

Nf6

Nxf6+

Qxf6

+-
Pickering Defence ...
h5
d4

e6

Nf3

d5

exd5

exd5

Bd3

Bd6

O-O

Kf8

Re1

Nc6

h3

Nb4

Bf1

Bf5

+-
Carr Defence ...
h6
d4

e6

Bd3

d5

Nc3

c5

dxc5

Bxc5

exd5

exd5

Bb5+

Nd7

Qxd5

Qe7+

Qe4

a6

+/-
O'Neill Gambit ...
b5
Bxb5

Bb7

Nc3

Nf6

Qe2

e6

Nf3

a6

Ba4

c5

O-O

Nc6

Bxc6

Bxc6

Ne5

Bb7

+-

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All possible Black's moves

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Quick
Navigation
Na6
a6
a5

b6
b5
Nc6
c6
c5

d6
d5

e6
e5
Nf6
f6
f5

g6
g5
Nh6
h6
h5

References

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  1. Fischer, Bobby (1969). "45. Fischer–Bisguier, New York State Open 1963". My 60 Memorable Games. Simon and Schuster. p. 280. ISBN 978-0-671-21483-8.
  2. 1...c5 and 1...e5 comprise 46% and 23% of continuations in the Lichess Master database, and 19% and 45% in the Lichess database.

See also

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  • Nunn's Chess Openings. 1999. John Nunn (Editor), Graham Burgess, John Emms, Joe Gallagher. ISBN 1-8574-4221-0.


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v · t · e
Chess openings quick reference
1. e4
2. Nf3
With 2...Nc6:
With other 2nd moves:
2. Other
1... other
1. d4
Flank
Unorthodox