En passant

Abstract: A method for playing team chess has been devised by using a modified chess board and using conventional chess rules. The gameboard has a square matrix of fourteen squares by fourteen squares. Four sets of conventional chess pieces are used, each set containing one king, one queen, two bishops, two knights, two rooks, and eight pawns. Each set of chess pieces differ in color, with two sets of pieces having light colors representing one team and two sets of chess pieces having dark colors representing the other team. The chess pieces move according to the conventional rules of chess. Each player's king must be checkmated two times by the opposing players before the player is removed from the game. A player in checkmate remains in checkmate and is unable to move any of his/her playing pieces during the player's subsequent turns until either his partner blocks the checkmating piece, or his partner captures the checkmating piece, or one of the opposing players moves one of the opposing playing pieces into a position so that the checkmate is removed. Playing pieces of the removed player remain on the board cannot be moved for the remainder of the game and can only be removed when captured.

Abstract: An enlightening double chess game with the chess board having double the number of columns of squares and a higher number of rows than the traditional chess board and double the number of chess pieces per player and including two additional players placed adjacent to king and queen with permissible moves that are a combination of moves from other pieces. Checkers may also be played on the board with a greater number of pieces. The method of using the board and pieces, i.e., the way some of the pieces move, is disclosed.

Abstract: Black Hole Chess is a game of tactics and strategy, played on a special board, which is larger than that of conventional chess and having vertical and horizontal grid lines as opposed to columns of alternating colored squares as in conventional chess. There are seventeen pieces representing futuristic, space-age figures on each of two opposing sides. Two players, one for each side, face each other across the board. The object of the game is to maneuver one's pieces, according to prescribed rules, in such a way as to put the opponent's President in a condition of "checkmate" or "stalemate," that is, a situation in which he is threatened with capture and cannot move out of vulnerability in any direction.

Abstract: The present invention relates generally to chess games based on the classical, two-person chess and simultaneous chess as well as traditional moves of the pieces. In particular the present invention relates to the Silesian Chess which can be played by two chessplayers on a few chessboards at the same time and by three chessplayers on three chessboards or by four chessplayers on four chessboards. When the game is played by three or four chessplayers then each of them plays on two chessboards at the same time and can observe chess situation on the chessboard (or chessboards) on which his partners play against each other. The Silesian Chess is played on the traditional equipment (chessboard and pieces) and with moves described in FIDE New Rules of Game (Erevan, 1996). The main differences between the traditional, classical chess and the Silesian Chess: (a) each player in a round has got a single move or a duplicated move. The single move is played on one selected chessboard, (b) the duplicated move (black bishops e7/f6 or white queens e2xe8 on two (11 and 13) chessboards) is the same move but played on a minimum of two chessboards at the same time, (c) a collection of non-repeatable moves is used in the opening part of a game. This collection consists of all first possible moves of white and black pawns and knights on one chessboard that can't be repeated on any other chessboard, (d) it is possible to use an apparent move which is a kind of single move. It means that any piece (except the king and the queen) starting from its actual place (square) takes a rival's pawn and immediately returns to its starting place on condition that the rival's pawn is placed out its starting position. During the game each player has got only one such move on every chessboard.