Author: Manfred Rosenboom
Date: 09:28:07 10/04/01
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On October 04, 2001 at 11:10:13, Sven Reichard wrote: >Looking through the standard, I couldn't find an answer to the following simple >question: > >Starting from the initial position, after White moves e4, is e3 considered an >e.p. square? (Even if there is no BP on d4, f4.) > >Thanks for any hints, >Sven. It IS described in the PGN standard: ----------------------------------------------------------- 16.1.4: Examples Here's the FEN for the starting position: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1 And after the move 1. e4: rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq e3 0 1 ----------------------------------------------------------- ----------------------------------------------------------- 16.2.3.4: En passant target square The fourth field is the en passant target square. If there is no en passant target square then the single character symbol "-" appears. If there is an en passant target square then is represented by a lowercase file character immediately followed by a rank digit. Obviously, the rank digit will be "3" following a white pawn double advance (Black is the active color) or else be the digit "6" after a black pawn double advance (White being the active color). An en passant target square is given if and only if the last move was a pawn advance of two squares. Therefore, an en passant target square field may have a square name even if there is no pawn of the opposing side that may immediately execute the en passant capture ----------------------------------------------------------- Regards, Manfred
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