A block is a defensive tactic in chess in response to an attack, consisting of interposing a piece between the opponent's attacking piece and the piece being attacked. This type of blocking will only work if the attacking piece is a type that can move linearly an indefinite number of squares such as a queen, rook, or bishop and there is at least one empty square in the line between the attacking and attacked piece. Blocking is not an option when the attacking piece is directly adjacent to the piece it is attacking, or when the attacking piece is a knight (because knights "jump over other pieces" and cannot be blocked). When an opponent's attack on a piece is blocked, the blocking piece is to some extent pinned, either relatively or absolutely, until a future move by either side allows it to be unpinned.
a
b
c
d
e
f
g
h
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
a
b
c
d
e
f
g
h
Black to move. Her queen is under attack by the rook. It cannot capture the rook as it is protected by the bishop. If it moves aside then the White rook can capture the Black one, leading to back rank mate. By moving the knight to the e4, however, Black can block the rook's attack.
A check on a king by an opponent's queen, rook, or bishop can sometimes be blocked by moving a piece to a square in line in between the opponent's checking piece and the checked king. The blocking piece is then absolutely pinned to the king by the attacking piece.
Another type of interposing in chess can involve placing a piece between two opponent's pieces where one of those pieces is protecting the other, or they are both protecting each other. This chess tactic can be called interference.
Blocking and initiativeedit
When the attack cannot be ignored, the attacking player has the initiative. The defending player may be able to acquire the initiative by blocking and attacking at the same time, by attacking an undefended attacker with the blocking piece, with a discovered attack, or when the block is also a check or a cross-check.
block, chess, this, article, does, cite, sources, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, block, chess, news, newspapers, books, scholar, jstor, august, 2019, learn, w. This article does not cite any sources Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Block chess news newspapers books scholar JSTOR August 2019 Learn how and when to remove this message A block is a defensive tactic in chess in response to an attack consisting of interposing a piece between the opponent s attacking piece and the piece being attacked This type of blocking will only work if the attacking piece is a type that can move linearly an indefinite number of squares such as a queen rook or bishop and there is at least one empty square in the line between the attacking and attacked piece Blocking is not an option when the attacking piece is directly adjacent to the piece it is attacking or when the attacking piece is a knight because knights jump over other pieces and cannot be blocked When an opponent s attack on a piece is blocked the blocking piece is to some extent pinned either relatively or absolutely until a future move by either side allows it to be unpinned abcdefgh8877665544332211abcdefghBlack to move Her queen is under attack by the rook It cannot capture the rook as it is protected by the bishop If it moves aside then the White rook can capture the Black one leading to back rank mate By moving the knight to the e4 however Black can block the rook s attack A check on a king by an opponent s queen rook or bishop can sometimes be blocked by moving a piece to a square in line in between the opponent s checking piece and the checked king The blocking piece is then absolutely pinned to the king by the attacking piece Another type of interposing in chess can involve placing a piece between two opponent s pieces where one of those pieces is protecting the other or they are both protecting each other This chess tactic can be called interference Blocking and initiative editWhen the attack cannot be ignored the attacking player has the initiative The defending player may be able to acquire the initiative by blocking and attacking at the same time by attacking an undefended attacker with the blocking piece with a discovered attack or when the block is also a check or a cross check See also editBlockade Chess tactic Interference ProphylaxisReferences edit nbsp This chess related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Block chess amp oldid 1185363629, wikipedia, wiki, book, books, library,
