client/src/translations/rules/Progressive1/en.pug

   1 p.boxed
   2   | White plays one move, then black play twice,
   3   | then white plays three moves...
   4
   5 p.
   6   At the very first move of the game, white make only one move - as usual.
   7   However, after that and for all the game, each side must play as many moves
   8   as the opponent just played plus one.
   9
  10 p.
  11   If a move gives check, then the sequence stops here, but the opponent can
  12   still play as many moves as would be theoretically possible.
  13   Also, if a checkmate or stalemate situation occurs before the maximal number
  14   of moves are played, the game ends.
  15   There are no en-passant captures.
  16
  17 figure.diagram-container
  18   .diagram
  19     | fen:rnbqk2r/pppp2pp/4p3/8/1b1P4/4pN2/PPP1PPPP/RN1QKB1R:
  20   figcaption "Mate in 1"
  21
  22 p.
  23   On the diagram white mates with the sequence of 5 moves c3 Ne5 Qd3 Qf5 Qf7.
  24   Moves' notation is replaced by &#8734; (infinity) when there are four moves
  25   or more to print.
  26
  27 h3 More information
  28
  29 p
  30   | You can start from the
  31   a(href="https://en.wikipedia.org/wiki/Progressive_chess")
  32     | Wikipedia page
  33   | , which points to
  34   a(href="http://users.ics.aalto.fi/tho/chess.html") this page
  35   | &nbsp;with several commented games.