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The Tarrasch Defense is a chess opening characterized by the moves: 1. d4 d5 2. c4 e6 3. Nc3 c5. The Tarrasch is a variation of the Queen's Gambit Declined. Black's third move is an aggressive bid for central space. After White plays cxd5 and dxc5, Black will be left with an isolated pawn on d5.
The Philidor position (or Philidor's position) is a chess endgame involving a drawing technique for the defending side in the rook and pawn versus rook endgame. This technique is known as the third-rank defense due to the positioning of the defending rook.
The opening is the initial stage of a chess game. It usually consists of established theory.The other phases are the middlegame and the endgame. [1] Many opening sequences, known as openings, have standard names such as "Sicilian Defense".
In the ending of a rook and pawn versus a rook, where the pawn is a knight pawn (b- or g-file), the defending king is in front of the pawn, but the defender cannot get his rook to the third rank for the drawing Philidor position, the defending rook draws on its first rank but loses if it is attacking the pawn from behind.
In chess, a tactic is a sequence of moves that each makes one or more immediate threats – a check, a material threat, a checkmating sequence threat, or the threat of another tactic – that culminates in the opponent's being unable to respond to all of the threats without making some kind of concession.
The Encyclopaedia of Chess Openings classifies the King's Indian Defence under the codes E60 through E99. The King's Indian is a hypermodern opening, where Black deliberately allows White control of the centre with pawns, with the view to subsequently challenge it.
Chess strategy is the aspect of chess play concerned with evaluation of chess positions and setting goals and long-term plans for future play. While evaluating a position strategically, a player must take into account such factors as the relative value of the pieces on the board, pawn structure, king safety, position of pieces, and control of key squares and groups of squares (e.g. diagonals ...
The Berlin Defence is a chess opening that begins with the moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6. The opening is a variation of the Ruy Lopez and is assigned codes C65–C67 in the Encyclopaedia of Chess Openings. [1] The code C65 covers White moves other than 4.0-0, such as 4.d3 (4.Nc3 is considered a variation of the Four Knights Game). The ...