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definition - Pawn (chess)

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Pawn (chess)

                   
  Pawn in the standard Staunton pattern

The pawn (♙♟) is the most numerous and (in most circumstances) weakest piece in the game of chess, historically representing infantry, or more particularly armed peasants or pikemen. Each player begins the game with eight pawns, one on each square of the rank immediately in front of the other pieces. (In algebraic notation, the white pawns start on a2, b2, c2, ..., h2, while black pawns start on a7, b7, c7, ..., h7.)

Individual pawns are referred to by the file on which they currently stand. For example, one speaks of "White's f-pawn" or "Black's b-pawn", or less commonly (using descriptive notation), "White's king's bishop pawn" or "Black's queen's knight pawn". It is also common to refer to a rook pawn, meaning any pawn on the a- or h-file, a knight pawn (on the b- or g-file), a bishop pawn (on the c- or f-file), a queen pawn (on the d-file), a king pawn (on the e-file), and a central pawn (on either the d- or e-file).

The word piece in chess literature usually excludes pawns, though this distinction between "pieces" and "pawns" is not found in the official rules.

Contents


  Movement

Solid white.svg a b c d e f g h Solid white.svg
8  __  __  __  __  __  __  __  __ 8
7  black pawn  black pawn  black pawn  black pawn  black pawn  black pawn  black pawn  black pawn 7
6  __  __  __  __  __  __  __  __ 6
5  __  __  __  __  __  __  __  __ 5
4  __  __  __  __  __  __  __  __ 4
3  __  __  __  __  __  __  __  __ 3
2  white pawn  white pawn  white pawn  white pawn  white pawn  white pawn  white pawn  white pawn 2
1  __  __  __  __  __  __  __  __ 1
Solid white.svg a b c d e f g h Solid white.svg
Initial placement of the pawns.
Solid white.svg a b c d e f g h Solid white.svg
8  __  __  __  __  __  __  __  __ 8
7  __  __  __  __  __  __  black pawn  __ 7
6  black pawn  __  __  __  __  __  black circle  __ 6
5  black circle  __  xw  __  __  __  black circle  __ 5
4  __  __  white pawn  __  xw  __  __  __ 4
3  __  __  __  __  xw  __  __  __ 3
2  __  __  __  __  white pawn  __  __  __ 2
1  __  __  __  __  __  __  __  __ 1
Solid white.svg a b c d e f g h Solid white.svg
Pawn movement: A pawn can move to the square directly in front of itself, if that square is clear. A pawn on its starting rank has the option of moving two squares.
Chess pieces
Chess kdt45.svgChess klt45.svg King
Chess qdt45.svgChess qlt45.svg Queen
Chess rdt45.svgChess rlt45.svg Rook
Chess bdt45.svgChess blt45.svg Bishop
Chess ndt45.svgChess nlt45.svg Knight
Chess pdt45.svgChess plt45.svg Pawn

Pawns are unusual in how they move. Unlike the other pieces, pawns may not move backwards. Normally a pawn moves by advancing a single square, but the first time a pawn is moved, it has the option of advancing two squares. Pawns may not use the initial two-square advance to jump over an occupied square, or to capture. Any piece directly in front of a pawn, friend or foe, blocks its advance. In the diagram at right, the pawn on c4 may move to c5, while the pawn on e2 may move to either e3 or e4.

  Capturing

Solid white.svg a b c d e f g h Solid white.svg
8  __  __  __  __  __  __  __  __ 8
7  __  __  __  __  __  __  __  __ 7
6  __  __  black rook  black bishop  black knight  __  __  __ 6
5  __  __  __  white pawn  __  __  __  __ 5
4  __  __  __  __  __  __  __  __ 4
3  __  __  __  __  __  __  __  __ 3
2  __  __  __  __  __  __  __  __ 2
1  __  __  __  __  __  __  __  __ 1
Solid white.svg a b c d e f g h Solid white.svg
The white pawn at d5 may capture either the black rook at c6 or the black knight at e6, but not the bishop at d6, which instead blocks the pawn's ability to move directly forward.

Unlike other pieces, the pawn does not capture in the same way as it otherwise moves. A pawn captures diagonally, one square forward and to the left or right. In the diagram to the left, the white pawn may capture either the black rook or the black knight.

Solid white.svg a b c d e f g h Solid white.svg
8  __  __  __  __  __  __  __  __ 8
7  __  __  cross  __  __  __  __  __ 7
6  __  __  xw  __  __  __  __  __ 6
5  __  __  black pawn  white pawn  __  __  __  __ 5
4  __  __  __  __  __  __  __  __ 4
3  __  __  __  __  __  __  __  __ 3
2  __  __  __  __  __  __  __  __ 2
1  __  __  __  __  __  __  __  __ 1
Solid white.svg a b c d e f g h Solid white.svg
En passant capture, assuming that the black pawn has just moved from c7 to c5. The white pawn moves to the c6 square and the black pawn is removed.

Another unusual move is the en passant capture. This arises when a pawn uses its initial-move option to advance two squares instead of one, and in so doing passes over a square that is attacked by an enemy pawn. That enemy pawn, which would have been able to capture the moving pawn had it advanced only one square, is entitled to capture the moving pawn "in passing" as if it had advanced only one square. The capturing pawn moves into the empty square over which the moving pawn moved, and the moving pawn is removed from the board. In the diagram at right, the black pawn has just moved c7 to c5, so the white pawn may capture it by moving from d5 to c6. The option to capture en passant must be exercised on the move immediately following the double-square pawn advance, or it is lost for the rest of the game. The en passant move was added to the pawn's repertoire in the 15th century to compensate for the then newly added two-square initial move rule (Hooper & Whyld 1992:124). Without en passant, a pawn could simply march past squares guarded by opposing pawns; en passant preserves the restrictive ability of pawns that have reached the fifth rank.

  Promotion

A pawn that advances all the way to the opposite side of the board (the opposing player's first rank) is promoted to another piece of that player's choice: a queen, rook, bishop, or knight of the same color. The pawn is immediately (before the opposing player's next move) replaced by the new piece. Since it is uncommon for a piece other than a queen to be chosen, promotion is often called "queening". When some other piece is chosen it is known as "underpromotion", and the piece selected is most often a knight, used to execute a checkmate or a fork giving the player a net increase in material compared to promoting to a queen. Underpromotion is also used in situations where promoting to a queen would give instant stalemate and the player chooses not to defer the promotion.

The choice of promotion is not limited to pieces that have previously been captured. Thus a player could in theory simultaneously have as many as ten knights, ten bishops, ten rooks or nine queens on the board. While this extreme would almost never occur in practice, in game 11 of their 1927 world championship match, José Raúl Capablanca and Alexander Alekhine each had two queens in play at once (from move 65 through the end on move 66).[1] While some finer sets do include an extra queen of each color, most standard chess sets do not come with additional pieces, so the physical piece used to replace a promoted pawn on the board is usually one that was previously captured. When the correct piece is not available, some substitute is used: a second queen is often indicated by inverting a previously captured rook or a piece is borrowed from another set. This issue does not arise in computer chess.

  Strategy

The pawn structure mostly determines the strategic flavor of a game. While other pieces can usually be regrouped more favorably if they are temporarily badly placed, a poorly placed pawn is very limited in its movement and often cannot be moved to a more favorable position.

Solid white.svg a b c d e f g h Solid white.svg
8  black rook  black knight  black bishop  black queen  black king  black bishop  black knight  black rook 8
7  black pawn  black pawn  black pawn  __  __  black pawn  black pawn  black pawn 7
6  __  __  __  __  black pawn  __  __  __ 6
5  __  __  __  black pawn  white pawn  __  __  __ 5
4  __  __  __  white pawn  __  __  __  __ 4
3  __  __  __  __  __  __  __  __ 3
2  white pawn  white pawn  white pawn  __  __  white pawn  white pawn  white pawn 2
1  white rook  white knight  white bishop  white queen  white king  white bishop  white knight  white rook 1
Solid white.svg a b c d e f g h Solid white.svg
Locked pawn chains

Because pawns capture diagonally and can be blocked from moving straight forward, opposing pawns often become locked in diagonal pawn chains of two or more pawns of each color, where each player controls squares of one color. In the diagram at left, black and white have locked their d- and e-pawns.

Here, White has a long-term space advantage. White will have an easier time than Black in finding good squares for his own pieces, particularly with an eye to the kingside. Black, in contrast, suffers from a bad bishop on c8, which is prevented by the black pawns from finding a good square or helping out on the kingside. On the other hand, White's central pawns are somewhat over-extended and vulnerable to attack. Black can undermine the white pawn chain with an immediate c7-c5 and perhaps a later f7-f6.

  Isolated pawn

Solid white.svg a b c d e f g h Solid white.svg
8  black rook  __  black bishop  black queen  black king  __  __  black rook 8
7  black pawn  black pawn  __  __  __  black pawn  black pawn  black pawn 7
6  __  __  black knight  __  __  __  __  __ 6
5  __  __  black bishop  black pawn  __  __  __  __ 5
4  __  __  __  __  __  __  __  __ 4
3  __  __  __  __  white pawn  white knight  __  __ 3
2  white pawn  white pawn  white pawn  __  __  white pawn  white pawn  white pawn 2
1  white rook  __  white bishop  white queen  white king  white bishop  __  white rook 1
Solid white.svg a b c d e f g h Solid white.svg
Black has an isolated pawn at d5

Pawns on adjacent files can support each other in attack and defense. A pawn which has no friendly pawns in adjacent files is an isolated pawn. The square in front of an isolated pawn may become an enduring weakness. Any piece placed directly in front not only blocks the advance of that pawn, but cannot be driven away by other pawns.

In the diagram at right, Black has an isolated pawn on d5. If all the pieces except the kings and pawns were removed, the weakness of that pawn might prove fatal to Black in the endgame. In the middlegame, however, Black has slightly more freedom of movement than White, and may be able to trade off the isolated pawn before an endgame ensues.

  Passed pawn

From Fine & Benko
Solid white.svg a b c d e f g h Solid white.svg
8  black king  black king  black king  black king  black king  black king  black king  black king 8
7  black king  black king  black king  black king  black king  black king  black king  black king 7
6  black pawn  black king  black king  black king  black king  black king  black king  black king 6
5  black king  black pawn  white pawn  black king  black king  black king  black king  black pawn 5
4  black king  white pawn  black king  black king  black king  black king  black king  black king 4
3  white pawn  black king  black king  black king  white king  black king  black king  black king 3
2  black king  black king  black king  black king  black king  black king  black king  black king 2
1  black king  black king  black king  black king  black king  black king  black king  black king 1
Solid white.svg a b c d e f g h Solid white.svg
White wins with either side to move

A pawn which cannot be blocked or captured by enemy pawns in its advance to promotion is a passed pawn. In the diagram at right, White has a protected passed pawn on c5 and Black has an outside passed pawn on h5. Because endgames are often won by the player who can promote a pawn first, having a passed pawn in an endgame can be decisive - especially a protected passed pawn (a passed pawn that is protected by a pawn). In this vein, a pawn majority, a greater number of pawns belonging to one player on one side of the chessboard, is strategically important because it can often be converted into a passed pawn.

The diagrammed position might appear roughly equal, because each side has a king and three pawns, and the positions of the kings are about equal. In truth, White wins this endgame on the strength of the protected passed pawn, no matter who makes the first move. The black king cannot be on both sides of the board at once - to defend his isolated h-pawn and to stop White's c-pawn from advancing to promotion. Thus White can capture the h-pawn and then win the game (Fine & Benko 2003:56).

  Doubled pawn

Solid white.svg a b c d e f g h Solid white.svg
8  black rook  __  black bishop  black king  __  black bishop  __  black rook 8
7  black pawn  black pawn  black pawn  __  __  black pawn  black pawn  black pawn 7
6  __  __  black pawn  __  __  __  __  __ 6
5  __  __  __  __  white pawn  black knight  __  __ 5
4  __  __  __  __  __  __  __  __ 4
3  __  __  white knight  __  __  white knight  __  __ 3
2  white pawn  white pawn  white pawn  __  __  white pawn  white pawn  white pawn 2
1  white rook  __  white bishop  __  __  white rook  white king  __ 1
Solid white.svg a b c d e f g h Solid white.svg
Black has doubled c-pawns

After a capture with a pawn, a player may end up with two pawns on the same file, called doubled pawns. Doubled pawns are substantially weaker than pawns which are side by side, because they cannot defend each other, they usually cannot both be defended by adjacent pawns, and the front pawn blocks the advance of the back one. In the diagram at right, Black is playing at a strategic disadvantage due to the doubled c-pawns.

There are situations where doubled pawns confer some advantage, typically when the guarding of consecutive squares in a file by the pawns prevents an invasion by the opponent's pieces.

Pawns which are both doubled and isolated are typically a tangible weakness. A single piece or pawn in front of doubled isolated pawns blocks both of them, and cannot be easily dislodged. It is rare for a player to have three pawns in a file, i.e. tripled pawns. Depending on the position, tripled pawns may be more or less valuable than two pawns which are side by side.

  Wrong rook pawn

In chess endgames with a bishop, a rook pawn may be the wrong rook pawn, depending on which color of square the bishop resides. This causes some positions to be draws which would otherwise be wins.

  History

The most basic piece in the game, the pawn has its origins in the oldest version of chess, Chaturanga. It is present in all other significant versions of the game, around the world. This piece only moved directly forward, capturing to the sides. These pieces were used as a metaphor for common men directly in the game, rather than the piece being applied to life's perspective the other way around.

In medieval chess, an attempt was made to make the pieces more interesting, each file's pawn being given the name of a commoner's occupation, from left to right:[2]

  • Gambler and other "lowlifes", also messengers (in the left-most file, that direction being literally sinister)
  • City guard or policeman (in front of a knight, as they trained city guards in real life)[3]
  • Innkeeper (bishop)
  • Merchant/Moneychanger (always before the king, whether or not he is to the left or right of the Queen, which depends on the colour of the pieces)
  • Doctor (always the queen's pawn)
  • Weaver/Clerk (in front of the bishop, for whom they wove or clericked)
  • Blacksmith (in front of a knight, as they care for the horses)
  • Worker/Farmer (in front of a castle, for which they worked)[4]

The most famous example of this is the second book ever printed in English, The Game and Playe of the Chesse, which indeed was seen as much as a political commentary on society as a chess book,[4] and was printed second by William Caxton[5] because it was, like the Bible, among the most popular books of its day.

The ability to move two spaces, and the resulting ability to have an en passant capture, were only introduced in 15th century Europe (see En passant#Historical context). The rule for promotion has changed through history, see promotion (chess)#History of the rule.

  Etymology

Though the name origin of most chess pieces is obvious, the pawn's etymology is fairly obscure. Since chess became prevalent in mainstream society, many new uses have derived from the word. "Pawn" is often taken to mean "one who is easily manipulated" or "one who is sacrificed for a larger purpose". The word pawn actually is derived from the Old French word "paon" which comes from the Medieval Latin term for foot soldier, and is etymologically cognate to peon.

Because the pawn is the weakest piece, it is often used metaphorically to indicate unimportance or outright disposability, for example, "He's only a pawn in their game."

In most other languages, the word for pawn is similarly derived from paon or some other word for foot soldier. Exceptions are, for example, the Irish fichillín, which means "little chess". The German "Bauer" means "farmer".

  Quotation

  • "The pawn is the soul of chess." - François-André Danican Philidor (... the Pawns. They are the very Life of the Game. They alone form the Attack and the Defense; on their good or bad Situation depends the Gain or Loss of the Party." Philidor, 1749 (Euwe & Hooper 1959:1) ).

  Unicode

Unicode defines two codepoints for pawn:

U+2659 White Chess Pawn (HTML ♙)

U+265F Black Chess Pawn (HTML ♟)

  See also

  Notes

  References

   
               

 

All translations of Pawn (chess)


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