Editing English Opening

{{Use British English|date=January 2013}}
{{Infobox chess opening
|openingname = English Opening
|image = {{Chess diagram
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|moves = 1.c4
|ECO = A10–A39
|birth = [[Howard Staunton|Staunton]] vs. [[Pierre Charles Fournier de Saint-Amant|Saint-Amant]], 1843
|nameorigin = [[Howard Staunton]], English player and [[World Chess Champion|World Champion]] (unofficial)
|AKA =
|chessgid = 2&move=1.5&moves=c4&nodes=2
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The '''English Opening''' is a [[chess opening]] that begins with the move:
: 1. [[b:Chess Opening Theory/1. c4|c4]]

A [[flank opening]], it is the fourth most popular<ref name="shredder_opening">{{cite web |last=Meyer-Kahlen |first=Stefan |title=Shredder opening database statistics |url=http://www.shredderchess.com/online-chess/online-databases/opening-database.html |access-date=2008-01-19}}</ref><ref>{{cite web |title=Chess Opening Explorer |publisher=Chessgames.com |url=http://www.chessgames.com/perl/explorer |access-date=2008-01-19}}</ref> and, according to various databases, one of the four most successful of White's twenty possible first moves.<ref name="shredder_opening"/><ref>{{Cite web |url=http://www.chessopeningsdatabase.com/Chess-Openings-Database.htm |title=Chess Openings Database statistics |access-date=2009-08-17 |archive-date=2010-07-26 |archive-url=https://web.archive.org/web/20100726204617/http://www.chessopeningsdatabase.com/Chess-Openings-Database.htm |url-status=dead}}</ref> White begins the fight for the {{chessgloss|centre}} by staking a claim to the d5-square from the wing, in [[Hypermodernism (chess)|hypermodern]] style. Although many lines of the English have a distinct character, the opening is often used as a [[transposition (chess)|transpositional]] device in much the same way as 1.Nf3 – to avoid such highly regarded responses to 1.d4 as the [[Nimzo-Indian Defence|Nimzo-Indian]] and [[Grünfeld Defence|Grünfeld]] Defences – and is considered reliable and flexible.<ref>{{cite book |year=2004 |title=Chess Life |edition=1–7 |publisher=[[United States Chess Federation]] |volume=59 |page=303 |url=https://books.google.com/books?id=fWNLAAAAYAAJ&q=%22The+English+opening+is+a%22}}</ref>
{{AN chess|pos=toc}}

== History of the opening ==
The English derives its name from the leading 19th-century English master [[Howard Staunton]], who played it during his 1843 match with [[Pierre Charles Fournier de Saint-Amant|Saint-Amant]] and at [[London 1851 chess tournament|London 1851]], the first international tournament.<ref name="De Firmian 2008 675">{{cite book |last=de Firmian |first=Nick |author-link=Nick de Firmian |year=2008 |title=[[Modern Chess Openings]]: MCO-15 |publisher=David McKay Co. |location=New York |isbn=978-0-8129-3682-7 |pages=675}}</ref> It did not inspire Staunton's contemporaries and caught on only in the twentieth century.<ref name="De Firmian 2008 675" /> It is now recognised as a {{chessgloss|solid}} opening that may be used to reach both classical and [[hypermodern chess]] positions. [[Mikhail Botvinnik]], [[Tigran Petrosian]], [[Anatoly Karpov]], [[Garry Kasparov]], [[Magnus Carlsen]], and [[Ding Liren]] have employed it during their world championship matches. [[Bobby Fischer]] created a stir when he switched to it from his customary [[King's Pawn Game|1.e4]] late in his career, employing it against [[Lev Polugaevsky]] and [[Oscar Panno]] at the [[Palma de Mallorca]] [[Interzonal]] in 1970, and in [[World Chess Championship 1972|his world championship match]] against [[Boris Spassky]].

==Taxonomy==
Opening theoreticians who write on the English Opening divide it into three broad categories, generally determined by Black's choice of defensive setup.

===Symmetrical Defence: 1...c5 <span class="anchor" id="Symmetrical Defence"></span>===
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|Symmetrical Defence: 1.c4 c5
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The Symmetrical Defence<ref>{{cite book |last1=Hooper |first1=David |authorlink1=David Vincent Hooper |last2=Whyld |first2=Kenneth |authorlink2=Kenneth Whyld |title=[[The Oxford Companion to Chess]] |publisher=[[Oxford University Press]] |year=1996 |edition=2nd |origyear=First pub. 1992 |entry=Symmetrical Defence |page=404 |isbn=0-19-280049-3 }}</ref> (classified A30–39 in ''[[Encyclopaedia of Chess Openings|ECO]]'') is 1...c5, and is so named because both of the c-pawns are advanced two squares, maintaining symmetry. Note that Black can reach the Symmetrical Defence through many move orders by deferring ...c5, and often does. For example, 1.c4 Nf6 2.Nc3 (or 2.Nf3) c5.

Either player may make an early break in the centre with the d-pawn.
Similar to the [[Open Sicilian]], an early d2–d4 for White can arise on the third move in the Symmetrical Defence with 2.Nf3, where Black has chosen one of 2...Nc6, 2...e6, 2...d6, or 2...g6. 

After 3.d4, the game usually continues with 3...cxd4 4.Nxd4. The games can give a large variety of positional and tactical ideas, and can transpose into variants of the Open Sicilian involving the [[Maróczy Bind]], such as the [[Accelerated Dragon]], Taimanov, Kan, or Kalashnikov Variations, if White plays e4 in a later move. If Black manages to play d5 before White plays e4, then the game could transpose into variants of the [[Queen's Gambit Declined]].

When Black plays 2...Nf6, these lines are often called the Anti-Benoni, since these positions are often reached after the transposition 1.d4 Nf6 2.c4 c5 3.Nf3, where White avoided the [[Benoni Defense]] that would arise after 3.d5. After 3...cxd4 4.Nxd4, Black could follow up with 4...e5 forcing White's knight to go to the queenside and avoiding the transpositions to the Sicilian or the QGD; however, White could avoid the line by first playing 3.Nc3 and then play 4.d4, if Black doesn't play 3...d5 (see below). Same as above, the position could transpose into a Queen's Gambit Declined or an Open Sicilian involving the Maróczy Bind. 
*With 2.e3 Nf6, the position transposes into a [[Panov–Botvinnik Attack]] after 3.d4 cxd4 4.exd4 d5. Alternatively, the position could transpose into a [[Tarrasch Defense]] in the [[Queen's Gambit Declined]]. 
*A typical line of play where Black plays an early ...d5 is 1.c4 c5 2.Nc3 Nf6 3.Nf3 d5, when White usually trades off in the centre 4.cxd5 Nxd5. White can either challenge the centre with 5.d4 or 5.e4 or allow Black a {{chessgloss|space}} advantage in the centre with 5.g3. In the latter case, Black can play 5...Nc6 6.Bg2 Nc7 followed by 7...e5, reaching a reversed [[Maróczy Bind]] position called the Rubinstein System.

There are several types of positions that can arise from the Symmetrical Defence. Among the ideas are:<ref>{{cite book |last=Cummings |first=David |date=October 1, 2001 |title=Symmetrical English |publisher=Everyman Chess |isbn=978-1-85744-292-2}}</ref>
*The [[Hedgehog (chess)|Hedgehog system]]<ref>{{cite book |last=de Firmian |first=Nick |author-link=Nick de Firmian |year=1999 |title=[[Modern Chess Openings]]: MCO-14 |publisher=David McKay Co. |location=New York |isbn=0-8129-3084-3 |pages=661–65}}</ref> involves a solid but flexible defence in which Black develops by b6, e6, Bb7, and Be7, before controlling the fifth rank with moves such as a6 and d6. The game typically involves extended maneuvering, but both players need to be on the lookout for favourable pawn advances and {{chessgloss|pawn breaks}}.
*The double fianchetto defence involves Black developing both bishops by [[fianchetto]] to g7 and b7. The line is fairly solid and difficult to defeat at the grandmaster level. Some lines are considered highly drawish, for instance if White's bishops are also fianchettoed to g2 and b2 there may be many piece exchanges leading to a simplified and equal position.

===Reversed Sicilian: 1...e5 <span class="anchor" id="Reversed Sicilian"></span>===
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|Reversed Sicilian: 1...e5
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The Reversed Sicilian (classified A20–29 in {{italics correction|''ECO''}}) is another broad category of defence, introduced by the response 1...e5. Note again, that Black can delay playing ...e5, for example 1.c4 Nf6 2.Nc3 Nc6 3.Nf3 e5 whereupon even though ...e5 has been delayed, once it is played the defence is classified as a Reversed Sicilian.

After 1...e5, White has Black's position in the [[Sicilian_Defence|Sicilian]] but with an extra [[Tempo (chess)|tempo]]. This is often called the Reversed [[Sicilian Defence|Sicilian]],<ref>{{cite web |last=Weeks |first=Mark |author-link=Mark Weeks |title=Chess Opening Tutorial : English – 1...e5 |publisher=About, Inc. |url=http://chess.about.com/od/improveyouropenings/ss/aa05i17_2.htm |access-date=2008-01-19 |url-status=dead |archive-url=https://web.archive.org/web/20071203113232/http://chess.about.com/od/improveyouropenings/ss/aa05i17_2.htm |archive-date=December 3, 2007}}</ref> though others call it the King's English.<ref>{{cite book |last1=Kasparov |first1=Gary |author-link1=Garry Kasparov |last2=Keene |first2=Raymond |author-link2=Raymond Keene |date=1982 |title=Batsford Chess Openings |publisher=B.T.Batsford Ltd |isbn=0-7134-2114-2}}</ref> Bruce Leverett, writing the English chapter in ''[[Modern Chess Openings|MCO-14]]'', stated, "It is natural to treat the English as a Sicilian reversed, but the results are often surprising—main lines in the Sicilian Defence correspond to obscure side variations in the English, and vice versa."

===Other lines===
The third broad category consists of the non-...e5 and non-...c5 responses, classified A10–19 in ''ECO''. Most often these defences consist of Nf6, e6, and d5 or Bb4 systemic responses by Black, or a [[Slav Defense|Slav]]-like system consisting of c6 and d5, a direct [[King's Indian Defence]] setup with Nf6, g6, Bg7, 0-0, after which c5 and e5 are eschewed, or 1...f5, which usually transposes to a [[Dutch Defence]] once White plays d4. All irregular responses such as 1...b6 and 1...g5 are also lumped into this third broad category.
*1...Nf6 is the most common response to 1.c4, often played to arrive at an [[Indian Defence]]. More than half the time, however, Black subsequently elects to transpose into either a Symmetrical Defence with ...c5, or a Reversed Sicilian with ...e5.
*1...e6 (the Agincourt Defense) can lead to a [[Queen's Gambit Declined]] after 2.Nc3 d5 3.d4, but White often prefers 2.Nf3, which may lead to a variety of openings.
*1...f5 leads to a [[Dutch Defence]] when White follows up with d4. Other choices for White are 2.Nc3, 2.Nf3, and 2.g3, where Black usually plays ...Nf6.
*1...g6 may lead to a [[Modern Defense]], or after Nf6 and d6 or d5 to the [[King's Indian Defence]] or the [[Grünfeld Defence]], respectively, or stay within English lines. Often dubbed the Great Snake Variation.
*1...c6 can lead to a [[Slav Defense]] after 2.d4 d5, but White will often prefer a [[Caro–Kann Defence]] with 2.e4 d5, or a [[Réti Opening]] after 2.Nf3 d5 3.b3. 1.c4 c6 2.d4 d6 is the Anglo-Slav Opening.
*1...b6 is the [[English Defence]]. This setup involves the fianchetto of the queenside bishop and 2...e6. Often Black will defer the move Nf6, choosing to attack the centre with f5 and/or Qh4. The English [[Grandmaster (chess)|grandmasters]] [[Tony Miles]] and [[Jonathan Speelman]] have successfully used this opening.
*1...d5 is the Anglo-Scandinavian Defense.<ref>{{Cite web|url=https://www.chess.com/openings/A10-English-Opening-Anglo-Scandinavian-Defense|title = English Opening: Anglo-Scandinavian Defense - Chess Openings}}</ref> Thought of as inferior to the [[Scandinavian Defense]] due to exchanging the c-pawn for a center pawn, in addition to the Scandinavian already having a somewhat suspect reputation. 
*1...g5 is an eccentric response known as Myers' Defense after [[Hugh Myers]]'s advocacy of it in print and actual play.<ref name="ChessBaseobit">[[ChessBase.com]], [http://www.chessbase.com/newsdetail.asp?newsid=5113 Hugh Myers (1930–2008), opening theoretician] (2008-12-25). Retrieved on 2008-12-25.</ref><ref name="Bücker">{{cite web|url=http://www.chesscafe.com/text/kaiss05.pdf|title=The Impoliteness of Ice Age Openings|publisher=[[Stefan Bücker]]|access-date=2021-10-26|archive-url=https://web.archive.org/web/20060615194145/http://www.chesscafe.com/text/kaiss05.pdf|archive-date=2006-06-15|url-access=subscription}}</ref><ref>Rick Kennedy, {{usurped|1=[https://archive.today/20130119162118/http://www.chessville.com/reviews/AChessExplorer.htm Review of ''A Chess Explorer'']}}. Retrieved on 2008-12-27.</ref> It is intended as an improved [[Grob's Attack]]; after 2.d4, Black will put pressure on the d4-square with moves such as ...Bg7, ...c5, and ...Qb6.<ref name="Bücker"/><ref>[[John L. Watson|Watson]] remarks, "Note ... how White (by his shockingly committal first move) has forfeited his chance for [c3], the key move in several of the most effective defences to Grob's Attack". John L. Watson, ''English: Franco, Slav and Flank Defences'', Batsford,
1981, p.&nbsp;103. {{ISBN|0-7134-2690-X}}. Watson considers 1...g5 "{{chessgloss|playable}}". ''Id.''</ref> According to ''Nunn's Chess Openings'', White obtains a small advantage after 2.d4 Bg7 (offering a Grob-like {{chessgloss|gambit}}: 3.Bxg5 c5) 3.Nc3 h6 4.e4.<ref>[[John Nunn]], [[Graham Burgess]], [[John Emms (chess player)|John Emms]], and [[Joseph Gallagher|Joe Gallagher]], ''Nunn's Chess Openings'', Everyman Publishers, 1999, p. 19 n. 1. {{ISBN|1-85744-221-0}}.</ref> Myers recommended 3...c5 (instead of 3...h6); in response, [[Joel Benjamin]] advocates 4.dxc5{{chesspunc|!}}<ref name="Bücker"/>
*1...b5 is called the Jaenisch Gambit after [[Carl Jaenisch]].<ref>{{cite web |title=A10: English, Jaenisch gambit - 1. c4 b5 - Chess Opening explorer |website=www.365chess.com |url=http://www.365chess.com/opening.php?m=3&n=887&ms=c4.b5&ns=15.887 |access-date=3 April 2018}}</ref> Black obtains no immediate compensation for the sacrificed pawn.<ref>{{cite book |last=Schiller |first=Eric |author-link=Eric Schiller |year=1998 |title=Unorthodox Chess Openings |chapter=English Opening &bull; Halbut Gambit |publisher=[[Avery Cardoza#Cardoza Publishing|Cardoza Publishing]] |isbn=0-940685-73-6 |pages=135–36}}</ref>

==Transposition potential==
If White plays an early d4, the game will usually transpose into either the [[Queen's Gambit]] or an [[Indian Defence]].
For example, after 1.c4 Nf6 2.Nc3 g6 3.d4 d5 the game has transposed into the [[Grünfeld Defence]], usually reached by the move order 1.d4 Nf6 2.c4 g6 3.Nc3 d5.

White can, however, also play 1.c4 Nf6 2.Nc3 g6 3.e4, making it impossible for Black to reach a Grünfeld, instead more or less forcing them into lines of the [[King's Indian Defence]] with 3...d6. Black also cannot force a Grünfeld with 1.c4 Nf6 2.Nc3 d5, since White can deviate with 3.cxd5 Nxd5 4.g3, a line played several times by [[Mikhail Botvinnik]] in 1958, in his final match for the world championship with [[Vasily Smyslov]].

Instead of playing an early d4, White can also play Nf3 and [[fianchetto]] the {{chessgloss|king's bishop}} (g3 and Bg2), transposing into a Réti Opening.

Also, after 1.c4 c6, White can transpose into the [[Polish Opening]], Outflank Variation, by playing 2.b4{{chesspunc|!?}}, which can be used as a surprise weapon if Black does not know very much about the Polish Opening.<ref>{{cite web |last=Silman |first=Jeremy |author-link=Jeremy Silman |year=2004 |title=The Dynamic English |url=http://www.jeremysilman.com/book_reviews_js/js_dynamic_english.html |access-date=2008-01-19 |archive-date=2016-10-01 |archive-url=https://web.archive.org/web/20161001180338/http://www.jeremysilman.com/shop/pc/home.asp |url-status=dead }}</ref>

The many different transpositional possibilities available to White make the English a slippery opening for Black to defend against, and make it necessary for them to consider carefully what [[transposition (chess)|move order]] to employ. For instance, if Black would like to play a [[Queen's Gambit Declined]] (QGD), the most accurate move order to do so is 1...e6 2.d4 d5. (Of course, White can again play the Réti instead with 2.Nf3 d5 3.b3.) If Black plays instead 1...Nf6 2.Nc3 e6, White can avoid the QGD by playing 3.e4, the '''Flohr–Mikenas Attack'''.

==''ECO''==
The ''[[Encyclopaedia of Chess Openings]]'' has classified the English Opening under the codes A10 through A39:
*A10 1.c4
*A11 1.c4 c6 (Caro-Kann Defensive System)
*A12 1.c4 c6 2.Nf3 d5 3.b3 (Also the Bogoljubov Variation of the Anglo-Slav Variation of the Réti Opening)
*A13 1.c4 e6 (Agincourt Defense)
*A14 1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.0-0 (Neo-Catalan Declined Line in the Agincourt Defense)
*A15 1.c4 Nf6 (Anglo-Indian Defense)
*A16 1.c4 Nf6 2.Nc3 (Queen’s Knight Variation of the Anglo-Indian Defense)
*A17 1.c4 Nf6 2.Nc3 e6 (Hedgehog System of the Queen’s Knight Variation of the Anglo-Indian Defense)
*A18 1.c4 Nf6 2.Nc3 e6 3.e4 ([[Mikenas–Carls Variation]])
*A19 1.c4 Nf6 2.Nc3 e6 3.e4 c5 (Sicilian Variation of the Mikenas-Carls Variation)
*A20 1.c4 e5 (King’s English Variation)
*A21 1.c4 e5 2.Nc3 (Reversed Sicilian)
*A22 1.c4 e5 2.Nc3 Nf6 (Two Knights Variation of the King’s English)
*A23 1.c4 e5 2.Nc3 Nf6 3.g3 c6 ([[Bremen (city)|Bremen]] System, [[Paul Keres|Keres]] Variation)
*A24 1.c4 e5 2.Nc3 Nf6 3.g3 g6 (Bremen System with ...g6) (also known as the Fianchetto Line)
*A25 1.c4 e5 2.Nc3 Nc6 (Reversed Closed Sicilian)
*A26 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 (Full Symmetry Line in the Closed System)
*A27 1.c4 e5 2.Nc3 Nc6 [[b:Chess Opening Theory/1. c4/1...e5/2. Nc3/2...Nc6/3. Nf3|3.Nf3]] (Three Knights System)
*A28 1.c4 e5 2.Nc3 Nc6 3.Nf3 [[b:Chess Opening Theory/1. c4/1...e5/2. Nc3/2...Nc6/3. Nf3/3...Nf6|Nf6]] (Four Knights Variation)
*A29 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 [[b:Chess Opening Theory/1. c4/1...e5/2. Nc3/2...Nc6/3. Nf3/3...Nf6/4. g3|4.g3]] (Four Knights, Kingside Fianchetto)
*A30 1.c4 c5 (Symmetrical Variation)
*A31 1.c4 c5 2.Nf3 Nf6 3.d4 (Symmetrical, [[Benoni Defense|Benoni]] Formation) (also known as the Anti-Benoni Variation)
*A32 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 (Spielmann Defense of the Anti-Benoni Variation of the Symmetrical)
*A33 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6
*A34 1.c4 c5 2.Nc3 (Normal Variation of the Symmetrical)
*A35 1.c4 c5 2.Nc3 Nc6 (Two Knights Variation of the Symmetrical)
*A36 1.c4 c5 2.Nc3 Nc6 [[b:Chess Opening Theory/1. c4/1...e5/2. Nc3/2...Nc6/3. g3|3.g3]] (Fianchetto Variation of the Symmetrical)
*A37 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 (Two Knights Line)
*A38 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 (Full Symmetry Line)
*A39 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.0-0 0-0 7.d4 (Mecking Variation)

==Depiction in cinema==
The English Opening is used by [[Professor Moriarty]] in the film ''[[Sherlock Holmes: A Game of Shadows]]'' as he and Holmes discuss their competing plans over a game of chess.  Both Holmes and Moriarty eventually play the final moves [[Blindfold chess|blindfolded]] by citing out the last moves in [[descriptive notation]] (rather than [[Algebraic notation (chess)|algebraic]], as the former was contemporary in the late 19th century), ending in Holmes checkmating Moriarty, just as [[Dr. Watson|Watson]] foils Moriarty's plans.

1.c4 is also used in ''[[Pawn Sacrifice]]'' by [[Bobby Fischer]] in the climactic [[1972 World Chess Championship#Game 6|game six]] of the [[1972 World Chess Championship]] versus [[Boris Spassky]].

==See also==
* [[List of chess openings]]
* [[List of chess openings named after places]]

==References==
{{Reflist|30em}}

==Further reading==
*{{cite book
 | last1=Kallai |first1=Gabor |author-link1=Gabor Kallai
 | last2=Ribli |first2=Zoltán |author-link2=Zoltán Ribli
 | year=1993
 | title=Winning With the English
 | publisher=Henry Holt
 | isbn=978-0-8050-2642-9}}
*{{cite book
 | last=Kosten |first=Tony |author-link=Anthony Kosten
 | year=1999
 | title=The Dynamic English
 | publisher=Gambit Publications
 | isbn=978-1-901983-14-2}}
*{{cite book
 | last=Hansen |first=Carsten |author-link=Carsten Hansen (chess player)
 | year=2001
 | title=The Symmetrical English
 | publisher=Gambit
 | isbn=978-1-901983-40-1}}
*{{cite book
 | last=Pritchett |first=Craig |author-link=Craig Pritchett
 | year=2008
 | title=Play the English
 | publisher=Everyman Chess
 | isbn=978-1-85744-545-9}}

==External links==
{{Wikibooks|Chess Opening Theory|1. c4|English Opening}}
*[http://www.chessvideos.tv/chess-opening-database/search/english-opening Database Of English Opening Variations]
*[https://www.chesshistory.com/winter/extra/english.html "The English Opening" by Edward Winter]

{{White's twenty opening moves in chess}}
{{Chess|state=collapsed}}
{{Authority control}}

[[Category:Chess openings]]
[[Category:1843 in chess]]
[[Category:Chess in England]]