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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 capturing pawn moves to the square over which the moved pawn passed, and the moved pawn is removed from the board. The option to capture the moved pawn en passant must be exercised on the move immediately following the double-step pawn advance, or it is lost for the remainder of the game. The en passant capture is the only capture in chess ...
Pawns cannot move backwards. A pawn, unlike other pieces, captures differently from how it moves. A pawn can capture an enemy piece on either of the two squares diagonally in front of the pawn. It cannot move to those squares when vacant except when capturing en passant. The pawn is also involved in the two special moves en passant and ...
It is not allowed to move the king into check on the first move of a turn and then move out of check on the second. En passant capture is allowed even if the opponent moved the corresponding pawn on the first move of their turn. Capturing en passant, however, must be done on the first move of the turn
When a pawn makes a capture, the file from which the pawn departed is used to identify the pawn. For example, exd5 (pawn on the e-file captures the piece on d5). En passant captures are indicated by specifying the capturing pawn's file of departure, the "x", the destination square (not the square of the captured pawn), and (optionally) the ...
(3) the possible moves of all the pieces are the same. Under (3) above, positions are not considered to be the same if: (a) in the first position, a pawn could have been captured en passant (by the en passant rule, in the subsequent positions, the pawn cannot be captured en passant anymore), or
A move by a pawn or piece that removes from the board the opponent's pawn or piece. The capturing piece then occupies the square of the captured piece, except in the case of a capture that is done en passant. [66] castling A move in which the king and a rook are moved at the same time.
In most chess problems, including retrograde analysis problems, castling is assumed to be legal unless it can be proved otherwise. An en passant capture, on the other hand, is permitted only if it can be proved that the last move was a double step of the pawn to be captured.