en passant

pawn (Self) to A4
“Sir, we are indeed side-by-
Side with the
Enemy; or, one might say, hand-in-
Hand, and now all that remains is

pawn (Other) to A3.
“Sir, I have spoken too soon. That
Enemy has moved beyond us
In Passing.”

B4, C4, etc. etc.,
and thus we see some difference between
Repetition and