Author: Bo Persson
Date: 11:26:47 12/16/99
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On December 15, 1999 at 19:12:19, Dan Ellwein wrote: >On December 15, 1999 at 17:31:27, Bruce Moreland wrote: > >> >>There is also got en-passant, which is weird. Your post is hard to understand, >>by the way. Yes, but somehow interesting :-) >>bruce >Thanks for the input Bruce... > >I'll work on presenting this better... > >En-passant (if my understanding is correct) is a special case when a pawn >reaches the 5th rank and the opposing adjacent pawn moves two squares on its >first move. The pawn on the 5th rank then has the option (only on its next >move) to capture the opposing pawn as if it had moved only one square. If this >is the case, then en-passant would be considered as a normal capture covered >under 'Magnitude 1 - Capture Only'. In other words, the 'Movement' of the >capture of a Pawn(P) done by en-passant is the same as the 'Movement' of the >capture of a Pawn(P) done normally. If i remember correctly, this is also the origin of the en-passant (french for "while passing"?) capture: The double pawn move is a rather late addition to the chess rules, the idea being to speed up the opening part of the game by letting each player perform the equivalent two pawn moves at a time (a double pawn move!). Letting the pawn pass his advancing opponent, and thus avoid being captured, was however considered too great an advantage. So a pawn on the 5th rank got one (and only one) chance to capture the moving pawn, just like it used to have under the older rules, where the mover had to pause on the first square and could continue on its next move. Quite a nice compromise! Bo Persson bop@malmo.mail.telia.com
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