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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.
A chess position created by the composer which presents the solver with a particular task; for example, "White mates in two" (i.e., White to move and checkmate Black in two moves against any possible defense). A wooden chess set and board chess set The thirty-two pieces required for a game, plus a chessboard. chess variant
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".
The best known of these, called the Poisoned Pawn Variation, is a line of the Sicilian Defense, Najdorf Variation that begins with the moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6. after which 8.Qd2 Qxb2 usually follows, accepting the "poisoned" b2-pawn. White can also play 8.Nb3, protecting the pawn.
The Modern Defense (also known as the Robatsch Defence after Karl Robatsch) is a hypermodern chess opening in which Black allows White to occupy the center with pawns on d4 and e4, then proceeds to attack and undermine this "ideal" center without attempting to occupy it. The Modern Defense usually starts with the opening moves: 1. e4 g6
The Sicilian Defence is a chess opening that begins with the following moves: . 1. e4 c5. The Sicilian is the most popular and best-scoring response to White's first move 1.e4. The opening 1.d4 is a statistically more successful opening for White because of the high success rate of the Sicilian defence against 1.e4.
The Damiano Defence is a chess opening beginning with the moves: . e4 e5; Nf3 f6?; The defence is one of the oldest chess openings, with games dating back to the 16th century. It is a weak opening that gives a large advantage for White after 3.Nxe5.
In chess, prophylaxis consists of a move or series of moves done by a player to prevent their opponent from taking some action. Such preventive moves, or prophylactic moves, aim not only to improve one's position but also to restrict the opponent in improving their own. Many standard and widespread opening moves can be considered prophylactic.