+ About notation: since pawn captures are non-ambigous they writes e.g.
+ "Pxe6" ('P' is redundant but looks nicer); simple pawn moves are often
+ ambiguous, so they write for example "f2g3" (again, the starting row is
+ redundant but this also looks better).
+
+figure.diagram-container
+ .diagram
+ | fen:rnbqkbnr/p1pppppp/8/8/1Pp2P2/5N2/PPP1PPP1/R1BQKBNR c3:
+ figcaption.
+ After 1.Nf3 b7d5 2.h2f4 d5c4 3.d2b4, en-passant capture on marked square
+ is possible
+
+h3 Other source
+
+p
+ | See for example the
+ a(href="https://brainking.com/en/GameRules?tp=59") Berolina chess
+ | page on brainking.com.