Opening (chess)

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In the game of chess, opening is understood to mean the purposeful elimination of pawns either by exchanging or by sacrificing pieces . The aim of opening up the game is to methodically increase the attacking effectiveness of one's own characters by opening up new lines of action or fields.

Examples

Bronstein - Geller
28th USSR Championship, Moscow, 1961
  a b c d e f G H  
8th Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess rdt45.svg Chess --t45.svg Chess kdt45.svg Chess --t45.svg 8th
7th Chess pdt45.svg Chess rlt45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess pdt45.svg Chess pdt45.svg Chess --t45.svg 7th
6th Chess --t45.svg Chess ndt45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess plt45.svg Chess --t45.svg Chess pdt45.svg 6th
5 Chess qdt45.svg Chess --t45.svg Chess --t45.svg Chess pdt45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg 5
4th Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess nlt45.svg Chess --t45.svg Chess plt45.svg 4th
3 Chess plt45.svg Chess --t45.svg Chess rdt45.svg Chess qlt45.svg Chess pdt45.svg Chess plt45.svg Chess --t45.svg Chess --t45.svg 3
2 Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg Chess --t45.svg 2
1 Chess --t45.svg Chess --t45.svg Chess blt45.svg Chess --t45.svg Chess --t45.svg Chess rlt45.svg Chess klt45.svg Chess --t45.svg 1
  a b c d e f G H  

Position after Black's 19th move

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This was followed by 20. Qd3 – g6!

On the one hand, because of the threat of mate on g7, the queen sacrifice is accepted . On the other hand, however, the opening of the 7th row after 20.… f7xg6 leads to a decisive extension of the range of the white rook and after 21. Rb7xg7 + Kg8 – f8 or Kf8 – h8 22. Nf4xg6 to mate .

From another perspective, the pawn f7 is tied to the attacking square g7 . There is no way out. Black therefore gave up.

See also: