Open file
Template:Short description Lua error in package.lua at line 80: module 'Module:Chessboard/Chess' not found.
An open file in chess is a [[Glossary of chess#template:plain text|file]] with no pawns of either color on it.[1] In the diagram, the e-file is an open file. An open file can provide a line of attack for a rook or queen. Having rooks or queens on open files or half-open files is considered advantageous, as it allows a player to attack more easily, since a rook or queen can move down the file to penetrate the opponent's position.
Page Template:TOC left/styles.css has no content.
Page Module:Side box/styles.css has no content.Page Template:Algebraic notation/styles.css has no content.
Strategic advantage
A common strategic objective for a rook or queen on an open file is to reach its seventh or eighth [[Glossary of chess#template:plain text|rank]] (the opponent's second or first rank). Controlling the seventh rank is generally worth at least a pawn, as it threatens all the opponent's yet-unmoved pawns to some degree. Controlling the eighth rank is likely to force the opposing king into a more exposed position and puts pressure on any remaining [[Glossary of chess#template:plain text|undeveloped]] pieces, or if the rank is already clear, allows unobstructed movement behind the enemy forces. Aron Nimzowitsch first recognized the power of a [[Glossary of chess#template:plain text|major piece]] on an open file, writing in his famous book My System that the main objective of a rook or queen on an open file is "the eventual occupation of the 7th or 8th rank".[2]
Many games are decided based on this strategy. In the game Anand–Ivanchuk, Amber 2001,[3] Anand sacrificed a pawn to open the d-file, where his rooks had previously formed a battery. White then used the open file to deploy his rooks to the seventh and eighth ranks and win the game, by exploiting the weakness of Black's a-pawn. White's dominance on the d-file allowed him to maneuver his rooks to aggressive posts deep within Black's defense.
Page Template:Col-begin/styles.css has no content.
|
See also
Notes
Page Template:Reflist/styles.css has no content.
- ^ According to Nimzowitsch, "A file is said to be open for the Rook when no pawn of his [own color] is in it." Elsewhere, "From the definition of an open file, it follows that a file will be opened by the disappearance of one of our own pawns." This defines what others call a half-open file.
- ^ My System, Aron Nimzowitsch
- ^ Page Module:Citation/CS1/styles.css has no content."Anand vs. Ivanchuk, Monaco 2001". Chessgames.com.
References
- Page Module:Citation/CS1/styles.css has no content.Hooper, David; Whyld, Kenneth (1996) [First pub. 1992]. The Oxford Companion to Chess (2nd ed.). Oxford University Press. p. 279. ISBN 0-19-280049-3.
Further reading
- Page Module:Citation/CS1/styles.css has no content.Euwe, Max; Kramer, Hans (1994), The Middlegame: Book One: Static Features, Hays, ISBN 978-1-880673-95-9
Lua error in package.lua at line 80: module 'Module:Navbox/configuration' not found.
