🕸Fergus Duniho wrote on Mon, Nov 11, 2019 02:28 AM UTC:
While fixing a bug in the Game Courier code, I came across a situation that is not clearly covered by the rules. Suppose a Pawn makes its usual first-move double move, then it moves forward one more space on the same turn, so that it moves a total of three spaces forward. Can it be captured by en passant if the opponent has a Pawn in the usual position? On the one hand, it has made a double move, and a Pawn that makes a double move can normally be captured by en passant. On the other hand, it is no longer on the space it moved to when making its double move, and if the player had wanted to, he could have moved the Pawn forward one space, then captured the Pawn that was in a position to capture it by en passant if it had made a double move.
For now, I have written the code to forbid en passant capture in this situation. Does anyone know if there is any precedent for allowing en passant capture in this situation?
While fixing a bug in the Game Courier code, I came across a situation that is not clearly covered by the rules. Suppose a Pawn makes its usual first-move double move, then it moves forward one more space on the same turn, so that it moves a total of three spaces forward. Can it be captured by en passant if the opponent has a Pawn in the usual position? On the one hand, it has made a double move, and a Pawn that makes a double move can normally be captured by en passant. On the other hand, it is no longer on the space it moved to when making its double move, and if the player had wanted to, he could have moved the Pawn forward one space, then captured the Pawn that was in a position to capture it by en passant if it had made a double move.
For now, I have written the code to forbid en passant capture in this situation. Does anyone know if there is any precedent for allowing en passant capture in this situation?