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  2. Rules of chess - Wikipedia

    en.wikipedia.org/wiki/Rules_of_chess

    Castling consists of moving the king two squares towards a rook, then placing the rook on the other side of the king, adjacent to it. Castling is only permissible if all of the following conditions hold: [11] The king and rook involved in castling must not have previously moved; There must be no pieces between the king and the rook;

  3. Checkmate - Wikipedia

    en.wikipedia.org/wiki/Checkmate

    A checkmate may occur in as few as two moves on one side with all of the pieces still on the board (as in fool's mate, in the opening phase of the game), in a middlegame position (as in the 1956 game called the Game of the Century between Donald Byrne and Bobby Fischer), [3] or after many moves with as few as three pieces in an endgame position.

  4. Checkmate pattern - Wikipedia

    en.wikipedia.org/wiki/Checkmate_pattern

    It works by confining the king with a pawn and using a queen to execute the checkmate. Damiano's mate is often arrived at by first sacrificing a rook on the h-file, then checking the king with the queen on the a-file or h-file, and then moving in for the mate. The checkmate was first published by Pedro Damiano in 1512. [11]

  5. Castling - Wikipedia

    en.wikipedia.org/wiki/Castling

    During castling, the king is shifted two squares toward a rook of the same color on the same rank, and the rook is transferred to the square crossed by the king. There are two forms of castling: [4] Castling kingside (short castling) consists of moving the king to g1 and the rook to f1 for White, or moving the king to g8 and the rook to f8 for ...

  6. Chess - Wikipedia

    en.wikipedia.org/wiki/Chess

    Castling is indicated by the special notations 0-0 (or O-O) for kingside castling and 0-0-0 (or O-O-O) for queenside castling. A move that places the opponent's king in check usually has the notation "+" suffixed. Checkmate can be indicated by suffixing "#".

  7. King (chess) - Wikipedia

    en.wikipedia.org/wiki/King_(chess)

    It may move to any adjoining square; it may also perform, in tandem with the rook, a special move called castling. If a player's king is threatened with capture, it is said to be in check, and the player must remove the threat of capture immediately. If this cannot be done, the king is said to be in checkmate, resulting in a loss for that ...

  8. Smothered mate - Wikipedia

    en.wikipedia.org/wiki/Smothered_mate

    Philidor's mate, also known as Philidor's legacy, is a checkmating pattern that ends in smothered mate. This method involves checking with the knight forcing the king out of the corner of the board, moving the knight away to deliver a double check from the queen and knight, sacrificing the queen to force the rook next to the king, and mating with the knight.

  9. Courier chess - Wikipedia

    en.wikipedia.org/wiki/Courier_chess

    There is no castling. Sage: Next to the king, on e1 and e8, stands the sage or mann, which moves one square in any direction, like the king, but can be hazarded or captured like a normal piece. [1] Queen: On the other central file, at g1 and g8, stands the ferz, or queen, which moves one square diagonally.