King's Pawn Opening
Chess Opening Theory/1. e4
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Position in Forsyth-Edwards Notation (FEN)
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Moves: 1. e4 | |
ECO code: B00–B99, C00–99 | |
Parent: Starting position | |
Responses: |
1. e4 · King's Pawn opening
[edit | edit source]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
[edit | edit source]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.
Attack e4
[edit | edit source]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.
Support d5
[edit | edit source]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.
Relinquish the centre
[edit | edit source]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.
Rare responses
[edit | edit source]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
[edit | edit source]- 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
[edit | edit source]
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 |
Nc3
Nf6 |
Qe2
e6 |
Nf3
a6 |
Ba4
c5 |
O-O
Nc6 |
Bxc6
Bxc6 |
Ne5
Bb7 |
+- |
All possible Black's moves
[edit | edit source]
Quick Navigation |
Na6 a6 a5 |
b6 b5 |
Nc6 c6 c5 |
d6 d5 |
e6 e5 |
Nf6 f6 f5 |
g6 g5 |
Nh6 h6 h5 |
References
[edit | edit source]- ↑ 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.
- ↑ 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
[edit | edit source]- Kasparov, Garry, & Keene, Raymond 1989 Batsford chess openings 2. ISBN 0-8050-3409-9.
- 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.
External links
[edit | edit source]- 365Chess: 1. e4