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In chess and other related games, a double check is a check delivered by two pieces simultaneously. [1] [2] In chess notation, it is almost always represented the same way as a single check ("+"), but is sometimes symbolized by "++". (The symbol "++", however, is also sometimes used to denote checkmate. [3]) This article uses "++" for double ...
The rules of chess have evolved much over the centuries from the early chess-like games played in India in the 6th century. For much of that time the rules have varied from area to area. The modern rules first took form in southern Europe during the 13th century, giving more mobility to pieces that previously had more restricted movement (such ...
The en passant capture places Black in double check and checkmate (in fact, White's bishop is not necessary for the mate). An en passant capture is the only way a double check can be delivered without one of the checking pieces moving, as in this case. The largest known number of en passant captures in one game is three. This record is shared ...
The result is a double check: One check is given by the rook, discovered by the capturing pawn's move; the other by the bishop, created by the captured pawn's removal. (The bishop’s check is not a discovered check, as the black pawn is captured and not moved.) Such a check is extremely rare in practical play, but it is sometimes found in ...
Double chess board and initial setup. Pawns advance up to four squares on their first move. Double chess is a chess variant invented by Julian S. Grant Hayward in 1916. [1] [2] The game is played on a 16×12 chessboard with each player in control of two complete armies placed side by side.
Double-Move Chess: Similar to Marseillais chess, but with no en passant, check, or checkmate. The objective is to capture the king. By Fred Galvin (1957). [41] Double-Take Chess: Each player, once per game, can make two moves during one of their turns. These two moves cannot be used to place the opponent's king in checkmate.
Double check prevents the queen from moving at all. The fact that the position is a double check is necessary in order for it to be a checkmate, and therefore some authors allow it as a pure mate. [f] In the second diagrammed position, Black has been mated by the knight at e3. [1]
Bughouse chess (also known as exchange chess, Siamese chess (but not to be confused with Thai chess), tandem chess, transfer chess, double bughouse, doubles chess, cross chess, swap chess or simply bughouse, bugsy, or bug) is a popular chess variant played on two chessboards by four players in teams of two. [1]