Fix Dark variant when en-passant captures are possible. Credit variants authors

[vchess.git] / client / src / translations / rules / Berolina / en.pug

p.boxed
  | Pawns advance diagonally and capture by moving forward.

p.
  Only the pawn movements change, but since there are many on the board it's a
  consequent change. They move forward diagonally instead of moving straight,
  and capture by advancing to the next square vertically.

figure.diagram-container
  .diagram
    | fen:8/8/5p2/5P2/P7/8/5P2/8 b5,e3,d4,g3,h4,e6,f6,g6:
  figcaption Possible pawn moves

p.
  The initial 2-squares jump is allowed, as well as en-passant captures:
  after 1.d2b4 on the diagram, 1...Pxc3 e.p. is possible.

p.
  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.

p Inventor (of the Berolina pawn): Edmund Hebermann (1926)