Author: Bruce Moreland
Date: 21:47:53 12/15/99
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On December 15, 1999 at 19:12:19, Dan Ellwein wrote: >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. I don't understand your categorizations then, or what you are trying to achieve. If you are making a list of cases you need to deal with when writing some sort of move generation and/or execution software, en-passant is definitely weird because you have to deal with a capture on a square that's not the destination square. bruce
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