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Pawn structure

In a game of chess, the pawn structure (sometimes known as the pawn skeleton) is the configuration of pawns on the chessboard. Because pawns are the least mobile of the chess pieces, the pawn structure is relatively static and thus plays a large role in determining the strategic character of the position.

General observations

Weaknesses in the pawn structure, such as isolated, doubled, or backward pawns and holes, once created, are usually permanent. Care must therefore be taken to avoid them (but there are exceptions—for instance see Boleslavsky hole below). In the absence of these structural weaknesses, it is not possible to assess a pawn formation as good or bad—much depends on the position of the pieces. The pawn formation does determine the overall strategies of the players to a large extent, however, even if arising from unrelated openings. Pawn formations symmetrical about a vertical line (such as the e5 Chain and the d5 Chain) may appear similar, but they tend to have entirely different characteristics because of the propensity of the kings to castle on the kingside.

Pawn structures often transpose into one another, such as the Isolani into the Hanging pawns, and vice versa. Such transpositions must be considered carefully and often mark shifts in game strategy.

The major pawn formations

In his 1995 book Pawn Structure Chess, Andrew Soltis classified the major pawn formations into 17 categories. In 2015, the book Chess Structures, by Mauricio Flores Rios, further studied the subject, subdividing pawn structures into the 28 most important. For a formation to fall into a particular category, it need not have a pawn position identical to the corresponding diagram, but only close enough that the character of the game and the major themes are unchanged. It is typically the center pawns whose position influences the nature of the game the most.

Structures with mutually attacking pawns are said to have tension. They are ordinarily unstable and tend to transpose into a stable formation with a pawn push or exchange. Play often revolves around making the transposition happen under favorable circumstances. For instance, in the Queen's Gambit Declined, Black waits until White develops the king's bishop to make the d5xc4 capture, transposing to the Slav formation (see below).

Caro formation

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The Caro formation

Openings: Primary: Caro–Kann. Other: French, Scandinavian (in the main line where white has to get the queen back from a5), Trompowsky (colors reversed), Alekhine's.

Character: Slow-paced game.

Themes for White: Outpost on e5, kingside space advantage, d4–d5 break, possibility of queenside majority in the endgame (typically after the exchange of White's d-pawn for Black's c-pawn).

Themes for Black: Weakness of the d4-pawn, ...c6–c5 and ...e6–e5 breaks. The latter break is usually preferable, but harder for Black to achieve.

Slav formation

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The Slav formation

Openings: Primary: Slav, Semi-Slav. Other: Catalan, Queen's Gambit Accepted, Queen's Gambit Declined, Nimzo-Indian, Colle System, London System, & Trompowsky (with the latter three having their colors reversed).

Character: Slow-paced game.

Themes for White: Pressure on the c-file, weakness of Black's c-pawn (either after Black's ...b7–b5 or after d4–d5xc6 in response to ...e6–e5), the d4–d5 break.

Themes for Black: e6–e5 and c6–c5 breaks.

Sicilian – Scheveningen

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The Scheveningen formation

Openings: Primary: Sicilian (Najdorf, Richter–Rauzer and Sozin variations), Sicilian Scheveningen, and several other Sicilian variations. Other: King's English (colors reversed).

Character: Complex, dynamic, sharp middlegame.

Themes for White: Pressure on the d-file, space advantage, e4–e5 break (often prepared with f2–f4), f2–f4–f5 push, g2–g4–g5 blitz (see Keres Attack).

Themes for Black: Pressure on the c-file, minority attack (and counterplay in general) on the queenside, pressure on White's pawn on e4 or e5, d6–d5 break, e6–e5 transposing into the Boleslavsky hole (see below).

It used to be considered unwise for White to exchange a piece on c6 allowing the recapture bxc6, because the phalanx of Black's center pawns was thought to become very strong; however modern chess engines have shown ways for White to maintain a slight advantage even with black's pawn on c6.

Sicilian – Dragon

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The Dragon formation

Openings: Primary: Sicilian Dragon. Other: Pirc, King's English (with colors reversed).

Character: Either a razor sharp middlegame with opposite side castling or a moderately sharp game with same side castling. The Sicilian Dragon requires a high level of opening memorization to play properly. This is especially true when it comes to the Yugoslav Attack in which White plays the moves Be3, f3, Qd2 and 0-0-0. Other variations include the following: the Classical Dragon, where White plays Be2 and 0-0; the Tal Attack, defined by Bc4 and 0-0; and the Fianchetto Defense, where White plays g3, Bg2 and 0-0. These less common variations lead to less tactical positions, with a potentially technical endgame.

Themes for White: Outpost on d5, kingside attack (either f2–f4–f5 with kingside castling or h2–h4–h5 with queenside castling), weakness of Black's queenside pawn minority in the endgame.

Themes for Black: Pressure on the long diagonal, queenside counterplay, exploiting White's often overextended kingside pawns in the endgame.

Opening Lines: The most common variation of the Sicilian Dragon is the Yugoslav Attack. 1. e4 c5 2.Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 (the defining move of the Yugoslav attack) 6... Bg7 7. Qd2 0-0 8. f3 (necessary to prevent Black from playing 8...Ng4 to attack White's dark-squared bishop; 8.f3 also gives e4 extra defense and prepares to launch a pawn storm with the move g4) 8... Nc6 9. 0-0-0 (9.Bc4 is also a very common move in this position) 9... d5 (the main line; other ideas include 9...Nxd4 and 9...Bd7).

Boleslavsky hole

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The Boleslavsky hole formation

Openings: Primary: Sicilian Najdorf, Classical, Sveshnikov, Kalashnikov. Other: Sicilian Prins, Moscow, O'Kelly (2... a6), King's English (with colors reversed), Pirc, Philidor, Ruy Lopez (Spanish), Italian

Character: Open, dynamic game.

Themes for White: taking control the d5 hole, exploiting the backward d6-pawn, f2–f4 break.

Themes for Black: d6–d5 break, queenside minority attack, the c4-square.

It is a paradoxical idea that Black can strive for equality by voluntarily creating a hole on d5. The entire game revolves around control of the d5-square. Black must play very carefully or White will place a knight on d5 and obtain a commanding positional advantage. Black almost always equalizes, and might even obtain a slight edge, if the d6–d5 break can be made. Black has two options for their queen's bishop: on e6 and on b7 (after ...a7–a6 and ...b7–b5). Unusually for an open formation, bishops become inferior to knights because of the overarching importance of d5: White will often exchange Bg5xf6, and Black usually prefers to give up their queen's bishop rather than a knight in exchange for a white knight if it gets to d5. This formation can be reached from the d5 chain formation after Black gets the c7-c6 break and exchanges the c pawn for White's d pawn.

When White castles queenside, Black often delays castling because their king is quite safe in the center.

Maróczy Bind

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The Maróczy bind formation with a pawn on d6.
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The Maróczy bind formation with a pawn on e6.

Openings: Primary: Sicilian, King's Indian Defence. Other: Symmetrical English, King's English (with colors reversed), Queen's Indian Defence, Nimzo-Indian Defence.

Character: Semi-open game.

Themes for White: Nd4–c2–e3, fianchettoing one or both bishops, the Maróczy hop (Nc3–d5 followed by e4xd5 with terrific pressure on the e-file), kingside attack, c4–c5 and e4–e5 breaks.

Themes for Black: b7–b5 break, f7–f5 break (especially with a fianchettoed king's bishop), d6–d5 break (prepared with ...e7–e6).

The Maróczy bind, named after Géza Maróczy, has a fearsome reputation. Chess masters once believed that allowing the bind was a mistake as Black always gave White a significant advantage. Indeed, if Black does not quickly make a pawn break, their minor pieces will suffocate, with minor pieces lacking any squares to move to and possibly becoming cornered or pressed into a weak defense. Conversely, the formation takes time to set up and limits the activity of White's light-squared bishop, which can buy Black some breathing room to accomplish this break.

Hedgehog

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The Hedgehog formation

Openings: Primary: Symmetrical English, Sicilian. Other: King's English (with colors reversed), King's Indian Defence (Sämisch), Queen's Indian Defense, Nimzo-Indian Defence, Nimzo-Larsen Attack.

Character: Closed, Semi-open game.

The Hedgehog is a formation similar to the Maróczy bind, and shares the strategic ideas with that formation. Typically, the Maróczy bind would transpose into the Hedgehog formation.

Rauzer formation

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The Rauzer formation (colors reversed)

Openings: Primary: King's Indian, Old Indian (colors reversed), Ruy Lopez, Italian Game. Other: Ruy Lopez (colors reversed), Italian Game (colors reversed), Sicilian Kramnik. The notation in the rest of this section refers to the colors reversed version.

Character: Semi-open game.

Themes for White: d6 weakness, c4–c5 push, a3–f8 diagonal, queenside pawn storm.

Themes for Black: d4 weakness, a1–h8 diagonal, f4-square, kingside attack, trading pieces for a superior endgame.

The Rauzer formation is named after Rauzer who introduced it in the Ruy Lopez. It can also rarely occur in the Ruy Lopez with colors reversed.

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Tarrasch – Euwe, Pistyan 1922

It is considered to give Black excellent chances because d6 is much less of a hole than White's d4. If the black king's bishop is fianchettoed it is common to see it undeveloped to f8 to control the vital c5- and d6-squares, or remove White's dark-squared bishop, the guardian of the hole.

The Rauzer formation is often misjudged by beginners. In the position on the left, White appears to have a development lead while Black's position appears to be riddled with holes. In reality, it is Black who stands clearly better, because White has no real way to improve their position while Black can improve by exploiting the d4-square (see complete game on Java (Applet) board).

Boleslavsky Wall

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The Boleslavsky Wall formation

Openings: Primary: King's Indian. Other: English, Pirc, Ruy Lopez, Philidor, Italian Game.

Character: Semi-open game, slow buildup.

Occurs after exchange of pawns on d4. Name given by Hans Kmoch.

Themes for White: exploitation of d6 weakness, e4–e5 and c4–c5 breaks, minority attack with ...b2–b4–b5.

Themes for Black: attacking the e4- and c4-pawns, d6–d5 and f7–f5 breaks, queenside play with ...a7–a5–a4.

The wall is yet another structure that leaves Black with a d-pawn weakness, but prevents White from taking control of the center and gives Black active piece play and an opportunity to play on either side of the board.

d5 chain

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The d5 chain formation

Openings: Primary: King's Indian, Pirc, Philidor. Other: Benoni, Ruy Lopez (Spanish), Trompowsky, English, Italian Game, Four Knights Game (Scotch variation)

Character: Closed game with opposite side activity.

Themes for White: Massive queenside space advantage, c2–c4–c5 break (optionally prepared with b2–b4), prophylaxis with ...g2–g4 (after f2–f3), f2–f4 break.

Themes for Black: kingside attack, f7–f5 break, g7–g5–g4 break (after f2–f3), c7–c6 break, prophylaxis with ...c6–c5 or ...c7–c5 transposing to a full Benoni formation.

The chain arises from a variety of openings but most commonly in the heavily analyzed King's Indian Classical variation. The theme is a race for a breakthrough on opposite flanks – Black must try to whip up a kingside attack before White's heavy pieces penetrate with devastating effect on the c-file. The position was thought to strongly favor White until a seminal game (TaimanovNajdorf 1953) where Black introduced the maneuver ...Rf8–f7, ...Bg7–f8, ...Rf7–g7. When the chain arises in the Ruy Lopez, play is much slower with tempo being of little value and featuring piece maneuvering by both sides, Black focusing on the c7–c6 break and White often trying to play on the kingside with the f2–f4 break. This may transpose into the Boleslavsky hole formation or the Maróczy Bind after Black plays the c7-c6 break and exchanges the c pawn for White's d pawn.

e5 chain

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The e5 chain formation

Openings: Primary: French. Other: Nimzowitsch, Trompowsky, Caro–Kann (Advance Variation), Bogo-Indian, London System, Colle System, Sicilian (Rossolimo, Alapin, Closed, O'Kelly), Nimzo–Larsen Attack (colors reversed), King's English (colors reversed).

Character: Closed/semi-open but sharp game.

Themes for White: kingside mating attack, f2–f4–f5 break.

Themes for Black: Exchanging the hemmed-in queen's bishop, c7–c5 and f7–f6 breaks.

Due to White's kingside space advantage and development advantage, Black must generate counterplay or be mated. Novices often lose to the sparkling Greek gift sacrifice. Attacking the head of the pawn chain with ...f7–f6 is seen as frequently as attacking its base, because it is harder for White to defend the head of the chain than in the d5 chain. In response to exf6, Black accepts a backward e6-pawn in exchange for freeing their position (the b8–h2 diagonal and the semi-open f-file) and the possibility of a further e6–e5 break. If White exchanges with d4xc5 it is called the Wedge formation. White gets an outpost on d4 and the possibility of exploiting the dark squares while Black gets an overextended e5 pawn to work on.

Modern Benoni formation

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The Modern Benoni formation

Openings: Primary: Modern Benoni, Queen's Indian Defence, King's Indian Defence Modern Defence, Ruy Lopez, Italian Game. Other: Trompowsky, Ruy Lopez (colors reversed), Italian Game (colors reversed), Réti Opening (colors reversed), King's Indian Attack (colors reversed), Sicilian Defence (Moscow, Rossolimo).

Character: Semi-open game.

Themes for White: Central pawn majority, e4–e5 break.

Themes for Black: Queenside pawn majority.

Giuoco Piano – Isolani formation

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The Isolani formation in the Giuoco Piano

Openings: Primary: Giuoco Piano. Other: French (Steiner, Exchange), Ruy Lopez (Berlin, Møller, Anti-Marshall), Petrov, King's English, French (colors reversed), Sicilian Alapin (colors reversed), Queen's Gambit Accepted (3.e3 variation)

Character: Open game.

Themes for White:

Themes for Black: Blockading the isolani, trading pieces for a favorable endgame.

Queen's Gambit – Isolani formation

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The Isolani formation in the Queen's Gambit

Openings: Primary: Queen's Gambit. Other: French, Sicilian Alapin, Symmetrical English, Caro–Kann, Nimzo-Indian, Slav.

Character: Open game.

Themes for White: d4–d5 break, sacrifice of the isolani, outpost on e5, kingside attack.

Themes for Black: Blockading the isolani, trading pieces for a favorable endgame.

The isolani leads to lively play revolving around the d5-square. If Black can clamp down on the pawn, their positional strengths and threat of exchanges give them the advantage. If not, the threat of the d4–d5 break is ever-present, and the isolani can sometimes be sacrificed to unleash the potential of White's pieces, enabling White to whip up a whirlwind attack. Garry Kasparov is famous for the speculative d4–d5 sacrifice.

Hanging pawns

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The Hanging Pawns formation

Openings: Primary: Queen's Gambit Declined. Other: Queen's Indian Defense, Symmetrical English, Sicilian (Alapin).

Character: Open game.

Themes for White: Line opening advance in the center, kingside attack.

Themes for Black: Forcing a pawn advance and blockading the pair, conversion to isolani.

The term is used almost exclusively for pawns on the c- and d-files, and usually for two pawns on the same rank (side by side). They can be a strength, a weakness or neutral, depending on the position. They are typically an attacking rather than a defensive asset.[1] Like the isolani, the hanging pawns are a structural weakness but with them usually comes increased piece activity to compensate. The play revolves around Black trying to force one of the pawns to advance. If Black can establish a permanent blockade the game is positionally won. On the other hand, White aims to keep the pawns hanging, trying to generate a kingside attack leveraging off of their superior center control. Other themes for White include tactical possibilities and line opening breaks in the center.

Carlsbad formation

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The Carlsbad formation

Openings: Primary: Queen's Gambit Declined. Other: Caro–Kann (colors reversed), Colle System (colors reversed), London System (colors reversed).

Character: Semi-open game.

Themes for White: Minority attack, e3–e4 break.

Themes for Black: e4 outpost, kingside attack.

Panov formation

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The Panov formation

Openings: Primary: Queen's Gambit Declined, Caro–Kann. Other: Alekhine Defense, QGD Tarrasch Defense (colors reversed), Symmetrical English, Symmetrical English (colors reversed).

Character: Semi-open, dynamic game.

Themes for White: Exploiting the dark squares, d6 outpost; queenside majority in the endgame, with an advanced pawn.

Themes for Black: e4 outpost, kingside attack, White's overextended pawn, e6–e5 and b7–b6 breaks.

Stonewall formation

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The Stonewall formation

Openings: Primary: Dutch Defense. Other: Colle System, Bird's Opening (with colors reversed).

Character: Closed game, uncomplicated strategy.

Themes: Exchanging the bad bishop, e4/e5 outposts, breaks on the c and g files.

Players must carefully consider how to recapture on the e4/e5-square, since it alters the symmetric pawn formation and creates strategic subtleties.

Botvinnik system

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The Botvinnik system

Openings: Primary: English, Dutch, King's Indian Attack. Other: Sicilian (Closed, Moscow), Vienna Game, Bishop's Opening.

Character: Closed game, uncomplicated strategy.

Themes: Exchanging the bad bishop, d4/d5 outposts, breaks on the b- and f-files.

This structure appears in one of Botvinnik's treatments of the English. Players must carefully consider how to recapture on the d4/d5-square, since it alters the symmetric pawn formation and creates strategic subtleties. Adding the typical White fianchetto of the king's bishop to this structure provides significant pressure along the long diagonal, and usually prepares the f2–f4–f5 break.

Closed Sicilian formation

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The Closed Sicilian formation

Openings: Primary: Closed Sicilian, Closed English (colors reversed).

Character: Closed, complicated position.

Themes for White: kingside pawn storm, c2–c3 and d3–d4 break.

Themes for Black: queenside pawn storm, a1–h8 diagonal.

See also

References

  1. ^ Silman 1999, p. 434
  • Flores Rios, Mauricio (2015). Chess Structures – a Grandmaster Guide. Quality Chess. ISBN 978-1-78483-000-7.
  • Soltis, Andy (1995). Pawn Structure Chess. McKay. ISBN 0-8129-2529-7.

Further reading

  • Marović, Dražen (2000). Understanding Pawn Play In Chess. Gambit. ISBN 1-901983-31-5.
  • Sakaev, Konstantin; Landa, Konstantin (2017). The Complete Manual of Positional Chess: The Russian Chess School 2.0 - Middlegame Structures and Dynamics. New in Chess. ISBN 978-9056917425.
  • Sokolov, Ivan (2008). Winning Chess Middlegames: An Essential Guide to Pawn Structures. New in Chess. ISBN 978-9056917500.
  • Yusupov, Artur (2009). Build Up Your Chess 3 Mastery. Quality Chess. ISBN 978-1906552268.

pawn, structure, this, article, includes, list, references, related, reading, external, links, sources, remain, unclear, because, lacks, inline, citations, please, help, improve, this, article, introducing, more, precise, citations, january, 2022, learn, when,. This article includes a list of references related reading or external links but its sources remain unclear because it lacks inline citations Please help to improve this article by introducing more precise citations January 2022 Learn how and when to remove this template message In a game of chess the pawn structure sometimes known as the pawn skeleton is the configuration of pawns on the chessboard Because pawns are the least mobile of the chess pieces the pawn structure is relatively static and thus plays a large role in determining the strategic character of the position Contents 1 General observations 2 The major pawn formations 2 1 Caro formation 2 2 Slav formation 2 3 Sicilian Scheveningen 2 4 Sicilian Dragon 2 5 Boleslavsky hole 2 6 Maroczy Bind 2 7 Hedgehog 2 8 Rauzer formation 2 9 Boleslavsky Wall 2 10 d5 chain 2 11 e5 chain 2 12 Modern Benoni formation 2 13 Giuoco Piano Isolani formation 2 14 Queen s Gambit Isolani formation 2 15 Hanging pawns 2 16 Carlsbad formation 2 17 Panov formation 2 18 Stonewall formation 2 19 Botvinnik system 2 20 Closed Sicilian formation 3 See also 4 References 5 Further readingThis article uses algebraic notation to describe chess moves General observations EditWeaknesses in the pawn structure such as isolated doubled or backward pawns and holes once created are usually permanent Care must therefore be taken to avoid them but there are exceptions for instance see Boleslavsky hole below In the absence of these structural weaknesses it is not possible to assess a pawn formation as good or bad much depends on the position of the pieces The pawn formation does determine the overall strategies of the players to a large extent however even if arising from unrelated openings Pawn formations symmetrical about a vertical line such as the e5 Chain and the d5 Chain may appear similar but they tend to have entirely different characteristics because of the propensity of the kings to castle on the kingside Pawn structures often transpose into one another such as the Isolani into the Hanging pawns and vice versa Such transpositions must be considered carefully and often mark shifts in game strategy The major pawn formations EditIn his 1995 book Pawn Structure Chess Andrew Soltis classified the major pawn formations into 17 categories In 2015 the book Chess Structures by Mauricio Flores Rios further studied the subject subdividing pawn structures into the 28 most important For a formation to fall into a particular category it need not have a pawn position identical to the corresponding diagram but only close enough that the character of the game and the major themes are unchanged It is typically the center pawns whose position influences the nature of the game the most Structures with mutually attacking pawns are said to have tension They are ordinarily unstable and tend to transpose into a stable formation with a pawn push or exchange Play often revolves around making the transposition happen under favorable circumstances For instance in the Queen s Gambit Declined Black waits until White develops the king s bishop to make the d5xc4 capture transposing to the Slav formation see below Caro formation Edit abcdefgh8 877665544332211abcdefghThe Caro formation Openings Primary Caro Kann Other French Scandinavian in the main line where white has to get the queen back from a5 Trompowsky colors reversed Alekhine s Character Slow paced game Themes for White Outpost on e5 kingside space advantage d4 d5 break possibility of queenside majority in the endgame typically after the exchange of White s d pawn for Black s c pawn Themes for Black Weakness of the d4 pawn c6 c5 and e6 e5 breaks The latter break is usually preferable but harder for Black to achieve Slav formation Edit abcdefgh8 877665544332211abcdefghThe Slav formation Openings Primary Slav Semi Slav Other Catalan Queen s Gambit Accepted Queen s Gambit Declined Nimzo Indian Colle System London System amp Trompowsky with the latter three having their colors reversed Character Slow paced game Themes for White Pressure on the c file weakness of Black s c pawn either after Black s b7 b5 or after d4 d5xc6 in response to e6 e5 the d4 d5 break Themes for Black e6 e5 and c6 c5 breaks Sicilian Scheveningen Edit abcdefgh8 877665544332211abcdefghThe Scheveningen formation Openings Primary Sicilian Najdorf Richter Rauzer and Sozin variations Sicilian Scheveningen and several other Sicilian variations Other King s English colors reversed Character Complex dynamic sharp middlegame Themes for White Pressure on the d file space advantage e4 e5 break often prepared with f2 f4 f2 f4 f5 push g2 g4 g5 blitz see Keres Attack Themes for Black Pressure on the c file minority attack and counterplay in general on the queenside pressure on White s pawn on e4 or e5 d6 d5 break e6 e5 transposing into the Boleslavsky hole see below It used to be considered unwise for White to exchange a piece on c6 allowing the recapture bxc6 because the phalanx of Black s center pawns was thought to become very strong however modern chess engines have shown ways for White to maintain a slight advantage even with black s pawn on c6 Sicilian Dragon Edit abcdefgh8 877665544332211abcdefghThe Dragon formation Openings Primary Sicilian Dragon Other Pirc King s English with colors reversed Character Either a razor sharp middlegame with opposite side castling or a moderately sharp game with same side castling The Sicilian Dragon requires a high level of opening memorization to play properly This is especially true when it comes to the Yugoslav Attack in which White plays the moves Be3 f3 Qd2 and 0 0 0 Other variations include the following the Classical Dragon where White plays Be2 and 0 0 the Tal Attack defined by Bc4 and 0 0 and the Fianchetto Defense where White plays g3 Bg2 and 0 0 These less common variations lead to less tactical positions with a potentially technical endgame Themes for White Outpost on d5 kingside attack either f2 f4 f5 with kingside castling or h2 h4 h5 with queenside castling weakness of Black s queenside pawn minority in the endgame Themes for Black Pressure on the long diagonal queenside counterplay exploiting White s often overextended kingside pawns in the endgame Opening Lines The most common variation of the Sicilian Dragon is the Yugoslav Attack 1 e4 c5 2 Nf3 d6 3 d4 cxd4 4 Nxd4 Nf6 5 Nc3 g6 6 Be3 the defining move of the Yugoslav attack 6 Bg7 7 Qd2 0 0 8 f3 necessary to prevent Black from playing 8 Ng4 to attack White s dark squared bishop 8 f3 also gives e4 extra defense and prepares to launch a pawn storm with the move g4 8 Nc6 9 0 0 0 9 Bc4 is also a very common move in this position 9 d5 the main line other ideas include 9 Nxd4 and 9 Bd7 Boleslavsky hole Edit abcdefgh8 877665544332211abcdefghThe Boleslavsky hole formation Openings Primary Sicilian Najdorf Classical Sveshnikov Kalashnikov Other Sicilian Prins Moscow O Kelly 2 a6 King s English with colors reversed Pirc Philidor Ruy Lopez Spanish ItalianCharacter Open dynamic game Themes for White taking control the d5 hole exploiting the backward d6 pawn f2 f4 break Themes for Black d6 d5 break queenside minority attack the c4 square It is a paradoxical idea that Black can strive for equality by voluntarily creating a hole on d5 The entire game revolves around control of the d5 square Black must play very carefully or White will place a knight on d5 and obtain a commanding positional advantage Black almost always equalizes and might even obtain a slight edge if the d6 d5 break can be made Black has two options for their queen s bishop on e6 and on b7 after a7 a6 and b7 b5 Unusually for an open formation bishops become inferior to knights because of the overarching importance of d5 White will often exchange Bg5xf6 and Black usually prefers to give up their queen s bishop rather than a knight in exchange for a white knight if it gets to d5 This formation can be reached from the d5 chain formation after Black gets the c7 c6 break and exchanges the c pawn for White s d pawn When White castles queenside Black often delays castling because their king is quite safe in the center Maroczy Bind Edit Main article Maroczy bind abcdefgh8 877665544332211abcdefghThe Maroczy bind formation with a pawn on d6 abcdefgh8 877665544332211abcdefghThe Maroczy bind formation with a pawn on e6 Openings Primary Sicilian King s Indian Defence Other Symmetrical English King s English with colors reversed Queen s Indian Defence Nimzo Indian Defence Character Semi open game Themes for White Nd4 c2 e3 fianchettoing one or both bishops the Maroczy hop Nc3 d5 followed by e4xd5 with terrific pressure on the e file kingside attack c4 c5 and e4 e5 breaks Themes for Black b7 b5 break f7 f5 break especially with a fianchettoed king s bishop d6 d5 break prepared with e7 e6 The Maroczy bind named after Geza Maroczy has a fearsome reputation Chess masters once believed that allowing the bind was a mistake as Black always gave White a significant advantage Indeed if Black does not quickly make a pawn break their minor pieces will suffocate with minor pieces lacking any squares to move to and possibly becoming cornered or pressed into a weak defense Conversely the formation takes time to set up and limits the activity of White s light squared bishop which can buy Black some breathing room to accomplish this break Hedgehog Edit Main article Hedgehog chess abcdefgh8 877665544332211abcdefghThe Hedgehog formation Openings Primary Symmetrical English Sicilian Other King s English with colors reversed King s Indian Defence Samisch Queen s Indian Defense Nimzo Indian Defence Nimzo Larsen Attack Character Closed Semi open game The Hedgehog is a formation similar to the Maroczy bind and shares the strategic ideas with that formation Typically the Maroczy bind would transpose into the Hedgehog formation Rauzer formation Edit abcdefgh8 877665544332211abcdefghThe Rauzer formation colors reversed Openings Primary King s Indian Old Indian colors reversed Ruy Lopez Italian Game Other Ruy Lopez colors reversed Italian Game colors reversed Sicilian Kramnik The notation in the rest of this section refers to the colors reversed version Character Semi open game Themes for White d6 weakness c4 c5 push a3 f8 diagonal queenside pawn storm Themes for Black d4 weakness a1 h8 diagonal f4 square kingside attack trading pieces for a superior endgame The Rauzer formation is named after Rauzer who introduced it in the Ruy Lopez It can also rarely occur in the Ruy Lopez with colors reversed abcdefgh8 877665544332211abcdefghTarrasch Euwe Pistyan 1922 It is considered to give Black excellent chances because d6 is much less of a hole than White s d4 If the black king s bishop is fianchettoed it is common to see it undeveloped to f8 to control the vital c5 and d6 squares or remove White s dark squared bishop the guardian of the hole The Rauzer formation is often misjudged by beginners In the position on the left White appears to have a development lead while Black s position appears to be riddled with holes In reality it is Black who stands clearly better because White has no real way to improve their position while Black can improve by exploiting the d4 square see complete game on Java Applet board Boleslavsky Wall Edit abcdefgh8 877665544332211abcdefghThe Boleslavsky Wall formation Openings Primary King s Indian Other English Pirc Ruy Lopez Philidor Italian Game Character Semi open game slow buildup Occurs after exchange of pawns on d4 Name given by Hans Kmoch Themes for White exploitation of d6 weakness e4 e5 and c4 c5 breaks minority attack with b2 b4 b5 Themes for Black attacking the e4 and c4 pawns d6 d5 and f7 f5 breaks queenside play with a7 a5 a4 The wall is yet another structure that leaves Black with a d pawn weakness but prevents White from taking control of the center and gives Black active piece play and an opportunity to play on either side of the board d5 chain Edit abcdefgh8 877665544332211abcdefghThe d5 chain formation Openings Primary King s Indian Pirc Philidor Other Benoni Ruy Lopez Spanish Trompowsky English Italian Game Four Knights Game Scotch variation Character Closed game with opposite side activity Themes for White Massive queenside space advantage c2 c4 c5 break optionally prepared with b2 b4 prophylaxis with g2 g4 after f2 f3 f2 f4 break Themes for Black kingside attack f7 f5 break g7 g5 g4 break after f2 f3 c7 c6 break prophylaxis with c6 c5 or c7 c5 transposing to a full Benoni formation The chain arises from a variety of openings but most commonly in the heavily analyzed King s Indian Classical variation The theme is a race for a breakthrough on opposite flanks Black must try to whip up a kingside attack before White s heavy pieces penetrate with devastating effect on the c file The position was thought to strongly favor White until a seminal game Taimanov Najdorf 1953 where Black introduced the maneuver Rf8 f7 Bg7 f8 Rf7 g7 When the chain arises in the Ruy Lopez play is much slower with tempo being of little value and featuring piece maneuvering by both sides Black focusing on the c7 c6 break and White often trying to play on the kingside with the f2 f4 break This may transpose into the Boleslavsky hole formation or the Maroczy Bind after Black plays the c7 c6 break and exchanges the c pawn for White s d pawn e5 chain Edit abcdefgh8 877665544332211abcdefghThe e5 chain formation Openings Primary French Other Nimzowitsch Trompowsky Caro Kann Advance Variation Bogo Indian London System Colle System Sicilian Rossolimo Alapin Closed O Kelly Nimzo Larsen Attack colors reversed King s English colors reversed Character Closed semi open but sharp game Themes for White kingside mating attack f2 f4 f5 break Themes for Black Exchanging the hemmed in queen s bishop c7 c5 and f7 f6 breaks Due to White s kingside space advantage and development advantage Black must generate counterplay or be mated Novices often lose to the sparkling Greek gift sacrifice Attacking the head of the pawn chain with f7 f6 is seen as frequently as attacking its base because it is harder for White to defend the head of the chain than in the d5 chain In response to exf6 Black accepts a backward e6 pawn in exchange for freeing their position the b8 h2 diagonal and the semi open f file and the possibility of a further e6 e5 break If White exchanges with d4xc5 it is called the Wedge formation White gets an outpost on d4 and the possibility of exploiting the dark squares while Black gets an overextended e5 pawn to work on Modern Benoni formation Edit abcdefgh8 877665544332211abcdefghThe Modern Benoni formation Openings Primary Modern Benoni Queen s Indian Defence King s Indian Defence Modern Defence Ruy Lopez Italian Game Other Trompowsky Ruy Lopez colors reversed Italian Game colors reversed Reti Opening colors reversed King s Indian Attack colors reversed Sicilian Defence Moscow Rossolimo Character Semi open game Themes for White Central pawn majority e4 e5 break Themes for Black Queenside pawn majority Giuoco Piano Isolani formation Edit Main article Isolated pawn abcdefgh8 877665544332211abcdefghThe Isolani formation in the Giuoco Piano Openings Primary Giuoco Piano Other French Steiner Exchange Ruy Lopez Berlin Moller Anti Marshall Petrov King s English French colors reversed Sicilian Alapin colors reversed Queen s Gambit Accepted 3 e3 variation Character Open game Themes for White Themes for Black Blockading the isolani trading pieces for a favorable endgame Queen s Gambit Isolani formation Edit Main article Isolated pawn abcdefgh8 877665544332211abcdefghThe Isolani formation in the Queen s Gambit Openings Primary Queen s Gambit Other French Sicilian Alapin Symmetrical English Caro Kann Nimzo Indian Slav Character Open game Themes for White d4 d5 break sacrifice of the isolani outpost on e5 kingside attack Themes for Black Blockading the isolani trading pieces for a favorable endgame Bogolyubov vs Rosenthal St Petersburg 1914abcdefgh8 877665544332211abcdefghWhite achieved a blockade with 11 Nb5 Magerramov vs Kasparov Baku 1977abcdefgh8 877665544332211abcdefghBlack obtained a devastating attack with 17 d4 The isolani leads to lively play revolving around the d5 square If Black can clamp down on the pawn their positional strengths and threat of exchanges give them the advantage If not the threat of the d4 d5 break is ever present and the isolani can sometimes be sacrificed to unleash the potential of White s pieces enabling White to whip up a whirlwind attack Garry Kasparov is famous for the speculative d4 d5 sacrifice Hanging pawns Edit abcdefgh8 877665544332211abcdefghThe Hanging Pawns formation Openings Primary Queen s Gambit Declined Other Queen s Indian Defense Symmetrical English Sicilian Alapin Character Open game Themes for White Line opening advance in the center kingside attack Themes for Black Forcing a pawn advance and blockading the pair conversion to isolani The term is used almost exclusively for pawns on the c and d files and usually for two pawns on the same rank side by side They can be a strength a weakness or neutral depending on the position They are typically an attacking rather than a defensive asset 1 Like the isolani the hanging pawns are a structural weakness but with them usually comes increased piece activity to compensate The play revolves around Black trying to force one of the pawns to advance If Black can establish a permanent blockade the game is positionally won On the other hand White aims to keep the pawns hanging trying to generate a kingside attack leveraging off of their superior center control Other themes for White include tactical possibilities and line opening breaks in the center Carlsbad formation Edit abcdefgh8 877665544332211abcdefghThe Carlsbad formation Openings Primary Queen s Gambit Declined Other Caro Kann colors reversed Colle System colors reversed London System colors reversed Character Semi open game Themes for White Minority attack e3 e4 break Themes for Black e4 outpost kingside attack Panov formation Edit abcdefgh8 877665544332211abcdefghThe Panov formation Openings Primary Queen s Gambit Declined Caro Kann Other Alekhine Defense QGD Tarrasch Defense colors reversed Symmetrical English Symmetrical English colors reversed Character Semi open dynamic game Themes for White Exploiting the dark squares d6 outpost queenside majority in the endgame with an advanced pawn Themes for Black e4 outpost kingside attack White s overextended pawn e6 e5 and b7 b6 breaks Stonewall formation Edit abcdefgh8 877665544332211abcdefghThe Stonewall formation Openings Primary Dutch Defense Other Colle System Bird s Opening with colors reversed Character Closed game uncomplicated strategy Themes Exchanging the bad bishop e4 e5 outposts breaks on the c and g files Players must carefully consider how to recapture on the e4 e5 square since it alters the symmetric pawn formation and creates strategic subtleties Botvinnik system Edit abcdefgh8 877665544332211abcdefghThe Botvinnik system Openings Primary English Dutch King s Indian Attack Other Sicilian Closed Moscow Vienna Game Bishop s Opening Character Closed game uncomplicated strategy Themes Exchanging the bad bishop d4 d5 outposts breaks on the b and f files This structure appears in one of Botvinnik s treatments of the English Players must carefully consider how to recapture on the d4 d5 square since it alters the symmetric pawn formation and creates strategic subtleties Adding the typical White fianchetto of the king s bishop to this structure provides significant pressure along the long diagonal and usually prepares the f2 f4 f5 break Closed Sicilian formation Edit abcdefgh8 877665544332211abcdefghThe Closed Sicilian formation Openings Primary Closed Sicilian Closed English colors reversed Character Closed complicated position Themes for White kingside pawn storm c2 c3 and d3 d4 break Themes for Black queenside pawn storm a1 h8 diagonal See also EditOutline of chess Pawn structure Chess opening Chess strategy Chess terminology Backward pawn Connected pawns Doubled pawns Isolated pawn Hedgehog chess References Edit Silman 1999 p 434 Flores Rios Mauricio 2015 Chess Structures a Grandmaster Guide Quality Chess ISBN 978 1 78483 000 7 Soltis Andy 1995 Pawn Structure Chess McKay ISBN 0 8129 2529 7 Further reading EditBaburin Alexander 2003 Winning Pawn Structures Batsford ISBN 978 0713480092 Grivas Efstratios 2006 Chess College 2 Pawn Play Gambit ISBN 978 1904600473 Marovic Drazen 2000 Understanding Pawn Play In Chess Gambit ISBN 1 901983 31 5 Sakaev Konstantin Landa Konstantin 2017 The Complete Manual of Positional Chess The Russian Chess School 2 0 Middlegame Structures and Dynamics New in Chess ISBN 978 9056917425 Sokolov Ivan 2008 Winning Chess Middlegames An Essential Guide to Pawn Structures New in Chess ISBN 978 9056917500 Yusupov Artur 2009 Build Up Your Chess 3 Mastery Quality Chess ISBN 978 1906552268 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