Games - Chess

	Games - Chess

When a game of chess begins, one player controls the sixteen white pieces while the other uses the sixteen black pieces. The colors are chosen either by a friendly agreement, by a game of chance, or by a tournament director. White always moves first and therefore has a slight advantage over black. The chess pieces should be set up on a standard chessboard with a white square in the near right hand corner.

Each kind of chess piece moves a different way. The rook moves any number of spaces vertically or horizontally, while the bishop moves any number of vacant spaces in any direction diagonally (meaning a bishop will always remain on the same color; note that each side has a bishop for each colored square, and between them they cover the whole board. Losing one bishop often creates weaknesses on the same colored square as the lost bishop). The queen is a combination of the rook and bishop (it can move any number of spaces diagonally, horizontally, or vertically). The king can move only one square horizontally, vertically, or diagonally. The knight can jump over occupied squares and moves two spaces horizontally and one space vertically (or vice versa), making an L shape; a knight in the middle of the board has eight squares it can move to. Note that every time a knight moves, it changes square color.

With the exception of the knight, pieces cannot jump over each other. One's own pieces ("friendly pieces") cannot be passed if they are in the line of movement, and a friendly piece can never replace another friendly piece. Enemy pieces cannot be passed, but they can be "captured". When a piece is captured (or taken), the attacking piece replaces the enemy piece on its square (en passant being the only exception). The king cannot be captured in regular chess, only put in check. If a player is unable to get their king out of check it is called checkmate and they have lost the game.

Pawns capture differently than they move; they can capture an enemy piece on either of the two spaces adjacent to the space in front of them (i.e., the two squares diagonally in front of them), but cannot move to these spaces if they are vacant; conversely, a pawn can move forward one square, but only if that square is unoccupied. Alternatively, a pawn can move two squares forward if it has not moved yet and both squares are empty. If a pawn advances all the way to the eighth rank, it can be promoted to any other piece, except a King or another pawn.

Chess games do not have to end in checkmate. Either player may resign if the situation looks hopeless; also, games may end in a draw (tie). A draw can occur in many situations, including mutual agreement to draw, draw by insufficient material, stalemate, threefold repetition or the fifty move rule.

Until the 1970s, at least in English-speaking countries, chess games were recorded and published using descriptive chess notation. This has been supplanted by the more compact algebraic chess notation. Several notations have emerged, based upon algebraic chess notation, for recording chess games in a format suitable for computer processing. Of these, Portable Game Notation (PGN) is the most common. Apart from recording games, there is also a notation Forsyth-Edwards Notation for recording specific positions. This is useful for adjourning a game to resume later or for conveying chess problem positions without a diagram.

To better understand rules of chess, please see a sample chess game, which explains chess through a simple demonstration, move after move.

Strategy and tactics

: Main article: Chess strategy and tactics
Chess openings are a sequence of moves, often memorized, which will help a player build up their position and prepare for the middlegame. Openings are often designed to take hold of the center of the board (e4, e5, d4 and d5), develop pieces, protect the king, and create a strong pawn structure. The Classical School of chess expounds the virtues of occupying the center early using pawns and/or pieces, while Hypermodernism advocates the control of the center not by using pawns but with distant pieces. It is often important for a player to castle (a special move that moves the king from the center of the board two squares towards one of the corners) to protect the king. See the list of chess openings for more information. While studying openings can greatly improve one's results, it is important to understand the underlying reasons for each sequence of moves in an opening. This can greatly reduce the need to rely on rote memorization of the opening phase of the game. Of the utmost importance in the opening is maintaining balance, or equality.

[ Visit the complete Wikipedia entry for Chess ]

Games - Chess

Strategy and tactics

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